Per-Simon Kildal

2017

Improvement of an octave bandwidth bowtie antenna design based on the analysis of a MIMO efficiency metric in random-LOS

2017

Design of 8 × 8 Slot Array Antenna based on Inverted Microstrip Gap Waveguide

Design of a double layer cavity backed slot array antenna in gap waveguide technology

2017

Wideband and High-Gain Corporate-Fed Gap Waveguide Slot Array Antenna With ETSI Class II Radiation Pattern in V-Band

Guest Editorial AWPL Special Cluster on Impact of User-Related Randomness on Antennas and Channels

Degrees of Freedom and Maximum Directivity of Antennas: A bound on maximum directivity of nonsuperreactive antennas

Useful Physical Images and Algorithms for Vector Dyadic Green's Functions [Wireless Corner]

OTA Testing of 3G-5G Devices with MIMO: From Anechoic Chambers to Reverberation Chambers and ... Back Again?

2017

E-band 3-D metal printed wideband planar horn array antenna

2016

A self-grounded dual-polarized wideband bowtie with improved MIMO performance in Random-LOS

Demonstration of a micromachined planar distribution network in gap waveguide technology for a linear slot array antenna at 100 GHz

2016

V-band high efficiency corporate-fed 8×8 slot array antenna with ETSI class II radiation pattern based on gap technology

Gap adapters for screw redundant high frequency measurements

2016

A multi-layer gap waveguide array antenna suitable for manufactured by die-sink EDM

Micromachined Linear Slot Array Antenna for 100 GHz with 10 dB Gain Using GAP Waveguide Technology

2016

Mm-Wave contactless connection for MMIC integration in gap waveguides

2016

Numerical Validation of Arecibo-Based Analytical Hat Antenna Theory Using Canonical PEC/PMC Strip Grids

2016

Different gap waveguide slot array configurations for mmwave fixed beam antenna application

2016

Measured LTE Throughput for SISO, SIMO and MIMO in Polarization-Random-LOS

Degrees of freedom of the field and maximum directivity

2016

Design of Sector Antenna with Wideband 2D Hat-fed Reflector for Wireless Communications

Analyzing smart phones' 3D accelerometer measurements to identify typical usage positions in voice mode

Antenna Measurements in Reverberation Chamber Using USRP

2016

Fundamental Directivity Limitations of Dense Array Antennas: A Numerical Study Using Hannan´s Embedded Element Efficiency

2016

Design of integrated diplexer-power divider

2016

Optimizing the numerical port for inverted microstrip gap waveguide in full-wave simulators

2016

Corporate distribution networks for slot array antenna based on groove gap waveguide technology

2016

Simple Formula for Aperture Efficiency Reduction Due to Grating Lobes in Planar Phased Arrays

2016

Design and Fabrication of a High-Gain 60-GHz Corrugated Slot Antenna Array With Ridge Gap Waveguide Distribution Layer

2016

Characterizing Polarization-MIMO Antennas in Random-LOS Propagation Channels

2016

Planar Eleven Antenna as a Wideband MIMO Micro-base Station Antenna

2016

W-band spatial power combiner and splitter in gap waveguide technology

2016

Simulations of a planar array arrangement for automotive Random-LOS OTA testing

2016

Investigation of Polarization Deficiencies in SIMO Systems in Random-LOS Propagation Channels

2016

Devising a Horizontal Chamber Array for Automotive OTA Tests in Random Line-Of-Sight

2016

Measured Probabilities of Detection for 1- and 2 Bitstreams of 2-port Car-roof Antenna in RIMP and Random-LOS

GAP waveguides

Polymer Gap Adapter for Contactless, Robust, and Fast Measurements at 220-325 GHz

2016

High Efficiency 2x2 Cavity-Backed Slot Sub-array for 60 GHz Planar Array Antenna Based on Gap Technology

AMC pin waveguide flange for screw redundant millimeter and submillimeter measurements

2016

Design of transition from WR-15 to inverted microstrip gap waveguide

2016

A V-Band Inverted Microstrip Gap Waveguide End-Coupled Bandpass Filter

2016

Simple Boundary Condition for Canonical EBG Surface: PMC-Backed Uniaxial Medium

2016

Millimeter Wave E-Plane Transition From Waveguide to Microstrip Line With Large Substrate Size Related to MMIC Integration

2016

Designing a dual-polarized octave bandwidth bowtie antenna for a linear array

2016

A high gain ridge gap waveguide fed slot antenna array for 60 GHz applications

Comparison of 2-bitstream polarization-MIMO performance of 2 and 4-port bowtie antennas for LTE in random-LOS

2016

Low-profile planar eleven antenna over a magnetic plane

2016

Corporate-Fed Planar 60 GHz Slot Array Made of Three Unconnected Metal Layers Using AMC pin surface for the Gap Waveguide

2016

Array-fed cylindrical reflector antenna for automotive OTA tests in Random Line-Of-Sight

2016

Spatial Power Combining and Splitting in Gap Waveguide Technology

2016

Initial Measured OTA Throughput of 4G LTE Communication to Cars with Roof-Mounted Antennas in 2D Random-LOS

2016

Half-height Pins – a New Pin Form in Gap Waveguide for Easy Manufacturing

2016

Design of a Cavity-backed Slot Array Unit Cell on Inverted Microstrip Gap Waveguide

2016

Design of F-Band Transition From Microstrip to Ridge Gap Waveguide Including Monte Carlo Assembly Tolerance Analysis

Modern Antenna Technologies Stimulated by the Arecibo Radio Telescope Upgrade Project 1984-1997

2015

A groove gap Waveguide Iris Filter for V-band Application

2015

A New 2x2 Microstrip Patch Sub-array for 60GHz Wideband Planar Antenna with Ridge Gap Waveguide Distribution Layer

2015

Design and Validation of Microstrip Gap Waveguides and Their Transitions to Rectangular Waveguide, for Millimeter-Wave Applications

2015

An Air-filled Cavity-backed 2×2 Slot Sub-array Fed by Inverted Microstrip Gap Waveguide

2015

The Simple Truth about Effects of Mutual Coupling in MIMO Arrays for Single and Multiple Bit Streams in Rich Isotropic Multipath

Design of a transition from WR-15 to microstrip packaged by gap waveguide technology

2015

Study of Grating Efficiency of Planar Arrays

2015

Measuring user-induced-randomness to evaluate smart phone performance in real envi-ronments

2015

Interpreting the Total Isotropic Sensitivity and Diversity Gain of LTE-enabled wireless devices from Over The Air Throughput Measurements in Reverberation Chambers

2015

Effects of Mutual Coupling on LTE MIMO Capacity for Monopole Array: Comparing Reverberation Chamber Tests and Drive Tests

2015

V-Band Groove Gap Waveguide Diplexer

Double broadband balun structure using CRLH TL for differential excitation of dual-polarized self-grounded bow-tie antenna

2015

Preparing for GBit/s coverage in 5G: Massive MIMO, PMC packaging by gap waveguides, OTA testing in random-LOS

2015

Investigation of mode stirring with plate on platform in a reverberation chamber

MIMO OTA Testing of a Communication System Using SDRs in a Reverberation Chamber

2015

Verification of the Rician K-factor-based uncertainty model for measurements in reverberation chambers

2015

Impact of the Spatial User Distribution on the Coverage Antenna Pattern of Maximum Ratio Combining in Random Line-Of-Sight

2015

On S-Parameter based Complex Correlation of Multi- Port Antenna

2015

Optimizing Small Wideband Antenna Performance for Both RIMP and Random-LOS

2015

Design of Millimeter-Wave Wideband Gap Waveguide Transitions Considering Integration into the Antenna System

Characterization and modeling of measurement uncertainty in a reverberation chamber with a rotating mode stirrer

2014

Measurements of relative Throughput in Reverberation Chamber using Universal Software Radio Peripheral

Methods and apparatuses for testing wireless communications to vehicles

Rectangular waveguides and Gap Waveguides using Pin Grid Array (PGA) and Ball Grid Array (BGA) Technologies

MICROMACHINED GAP WAVEGUIDE DEVICES FOR ABOVE 100 GHZ

2014

Design of 60GHz Planar Array Antennas Using PCB-based Microstrip-Ridge Gap Waveguide and SIW

2014

Direct-Coupled Cavity Filter in Ridge Gap Waveguide

Characterization of multi-antenna systems in RIMP and random-LOS environments using probability of detection of different bit streams

Comparing Throughputs of 2×2 Spatial Multiplexing MIMO Systems with and without CSI at the Transmit Side in Rich Isotropic Multipath Environments

2014

Improved MIMO Throughput With Inverse Power Allocation - Study Using USRP Measurement in Reverberation Chamber

2014

Revisiting the Complex Correlation in a MIMO System

2014

Microstrip-Ridge Gap Waveguide – Study of Losses, Bends and Transition to WR-15

2014

Investigation of Transitions for Use in Inverted Microstrip Gap Waveguide Antenna Arrays

2014

Metasurfing since 1987 - A personal story involving soft and hard surfaces, EBG surfaces, cloaking, gap waveguides and mass production

2014

OTA characterization of μBTS antenna in RIMP and random-LOS

2014

60GHz Slot-Array Antenna Design Based on Gap Waveguide Cavity and Gap Waveguide Feed

2014

Planar Dual-Mode Horn Array with Corporate-Feed Network in Inverted Microstrip Gap Waveguide

2014

Fundamental Limitations on Small Multi-Beam Antennas for MIMO Systems

2014

MIMO Characterization on System Level of 5G Micro Base Stations Subject to Ran-domness in LOS

Cost-effective measurement setups for testing wireless communication to vehicles in reverberation chambers and anechoic chambers

2014

Arrangements and Applications of Self-grounded Antennas

Wideband Compact 4-Port Dual Polarized Self-Grounded Bowtie Antenna

2014

Gap Waveguide PMC Packaging for Improved Isolation of Circuit Components in High-Frequency Microwave Modules

OTA Characterization of mu BTS Antenna in RIMP and Random-LOS

Estimating TIS of 4G LTE devices from OTA throughput measurements in reverberation chamber

Methods and apparatuses for testing wireless communications to vehicles

2014

2×2-slot Element for 60GHz Planar Array Antenna Realized on Two Doubled-sided PCBs Using SIW Cavity and EBG-type Soft Surface fed by Microstrip-Ridge Gap Waveguide

Verifying detection probabilities for MIMO system in reverberation chamber

Overview of state-of-the-art OTA measurements of wireless devices in reverberation chamber

2014

Fast and Accurate Analysis of Reflector Antennas with Phased Array Feeds Including Multiple Reflections between Feed and Reflector

2014

Prospective new PMC based gap waveguide shielding for microwave modules

Micromachined gap waveguide devices for above 100 GHz

2014

Wide-Band Slot Antenna Arrays With Single-Layer Corporate-Feed Network in Ridge Gap Waveguide Technology

2013

Micromachined Groove Gap Waveguides for 100 GHz applications

Rethinking the Wireless Channel for OT A testing and Network Optimization by Including User Statistics:RIMP, pure-LOS, Throughput and Detection Probability

Linear slot array design in ridge gap waveguide technology

2013

Ka-Band Gap Waveguide Coupled-Resonator Filter for Radio Link Diplexer Application

Near-field characteristics of amended DB boundary conditions

2013

Investigation of the Distribution of the Random LOS Component in a Reverberation Chamber

2013

Study of the characteristic impedance of gap waveguide microstrip line realized with square metal pins

2013

Gap waveguides and PMC packaging: Octave bandwidth mm- and submm-wave applications of soft & hard surfaces, EBGs and AMCs

Micromachined gap waveguides for 100 GHz applications

2013

Evaluation of cross-coupling inside gap-waveguides

2013

Parabolic cylindrical reflector antenna at 60 GHz with line feed in gap waveguide technology

2013

Study of OTA Throughput of 4G LTE Wireless Terminals for Different System Bandwidths and Coherence Bandwidths

Some reflector and feed antenna inventions that made a difference: Fundamentals and examples from radio telescopes, satellite communications and radio links

Packaging of MMIC by using gap waveguide and design of a microstrip to ridge gap waveguide transition

2013

New Approach to OTA Testing: RIMP and pure-LOS as Extreme Environments & a Hypothesis

In Memoriam: Olof Dahlsjö

Definition of Antenna Diversity Gain in User-Distributed 3D-Random Line-Of-Sight

2013

Overview of developments of the eleven Feeds

2013

Design of a Dual-Mode Horn Element for Microstrip Gap Waveguide Fed Array

Correlation between far-field patterns on both sides of the head of two-port antenna on mobile terminal

100 GHz SOI Gap Waveguides

2013

Characterization of Implemented Algorithm for MIMO Spatial Multiplexing in Reverberation Chamber

2013

Evaluation of losses of the ridge gap waveguide at 100 GHz

Wideband Receivers for VLBI2010 Applications

EuCAP 2013 in Gothenburg, Sweden: "An Impressive Success"

2013

Study of Q-Factors of Ridge and Groove Gap Waveguide Resonators

Simple models for multiplexing throughputs in open- and closed-loop MIMO systems with fixed modulation and coding for OTA applications

2013

Design of a simple transition from microstrip to ridge gap waveguide suited for MMIC and antenna integration

2013

Ku band linear slot-array in ridge gapwaveguide technology

2013

Diversity gains of multiport mobile terminals in multipath for talk positions on both sides of the head

2013

Efficiency, Correlation, and Diversity Gain of UWB Multiport Self-Grounded Bow-Tie Antenna in Rich Isotropic Multipath Environment

2013

Resemblance Between Gap Waveguides and Hollow Waveguides

2013

Suppression of Parallel Plate Modes in Low Frequency Microstrip Circuit Packages Using Lid of Printed Zigzag Wires

Design of a four-element horn antenna array fed by inverted microstrip gap waveguide

2013

MRC Diversity and MIMO Capacity Evaluations of Multi-Port Antennas Using Reverberation Chamber and Anechoic Chamber

Rethinking the Wireless Channel for OTA testing and Network Optimization by Including User Statistics: RIMP, pure-LOS, Throughput and Detection Probability

Contactless flanges and shielded probes

2012

Capacity characterization of Eleven antenna in different configurations for MIMO applications using reverberation chamber

Packaging active and passive microwave circuits using a grid of planar conducting elements on a grid of vertically arranged substrates

2012

LTE MIMO multiplexing performance measured in reverberation chamber and accurate simple theory

2012

Numerical Prepackaging with PMC Lid - Efficient and Simple Design Procedure for Microstrip Circuits Including the Packaging

Theoretical models for improving OTA measurement quality of throughput of LTE devices with MIMO and OFDM in reverberation chamber

2012

Design of Compact Dual-Polarized 1.2–10 GHz Eleven Feed for Decade Bandwidth Radio Telescopes

2012

Fast analysis of gap waveguides using the characteristic basis function method and the parallel-plate Green’s function

Comparison of parallel-plate Green’s function acceleration techniques

2012

Investigation of a Microstrip-to-Ridge Gap Waveguide transition by electromagnetic coupling

2012

Slot antenna in ridge gap waveguide technology

Diversity gains in random line of sight and rich isotropic multipath environment

2012

Contactless non-leaking waveguide flange realized by bed of nails for millimeter wave applications

2012

Ka-band gap waveguide coupled-resonator filter for radio link diplexers

2012

OTA Testing in Multipath of Antennas and Wireless Devices With MIMO and OFDM

2012

Design of a coplanar waveguide-to-ridge gap waveguide transition via capacitive coupling

2012

Design and System Integration of 2-14 GHz Eleven Feed for VLBI2010

2012

Diversity Gains in Random Line-Of-Sight and Rich Isotropic Multipath Environment

2012

Evaluation of multi element antennas in reverberation chamber

2012

New Microstrip Gap Waveguide on Mushroom-Type EBG for Packaging of Microwave Components

2012

Narrow-Band Microwave Filter Using High-Q Groove Gap Waveguide Resonators With Manufacturing Flexibility and No Sidewalls

2012

Metamatrial based packaging method for improved isolation of circuit elements in microwave modules

Experimental and theoretical study of OTA throughput of 4G LTE wireless terminals for different system bandwidths and coherence bandwidths in Rich Isotropic Multipath

Fabrication method for high-frequency components

Micromachined Ridge Gap Waveguide and Resonator for Millimeter-Wave Applications

2012

Characterization of Reverberation Chambers for OTA Measurements of Wireless Devices: Physical Formulations of Channel Matrix and New Uncertainty Formula

2012

Bed of Springs for Packaging of Microstrip Circuits in the Microwave Frequency Range

2012

Gap waveguide components for millimeter-wave systems. Couplers, filters, antennas, MMIC packaging

2012

MIMO LTE OTA measurements in reverberation chamber: rich isotropic reference environment makes agreement with theoretical system model

2012

Analysis of the strut and feed blockage effects in radio telescopes with compact UWB feeds

2012

Evaluation of losses in microstrip gap waveguide for slot antennas applications

Micromachined Ridge Gap Waveguide and Resonator for 220-325 GHz

2012

Development of the cryogenic 2-14 GHz eleven feed system for VLBI2010

2012

Analytical modeling and experimental verification of coupling between transmission lines in gap-waveguides

Verification of K-factor Based Formula for Measurement Uncertainty in Reverberation Chamber

2012

Modeling system throughput of single and multi-port wireless LTE devices

2012

A study of uncertainty models in a reverberation chamber at NIST

2012

Improved Microstrip Filters Using PMC Packaging by Lid of Nails

2011

Review of recent developments of the eleven feed for future decade bandwidth radio telescopes

2011

Wearable textile antennas’ efficiency characterization using a reverberation chamber

2011

Simple calculation of ergodic capacity of lossless two-port antenna system using only S-parameters – Comparison with common Z-parameter approach

2011

Optimization of reflection coefficient of large log-periodic array by computing only a small part of it

2011

The PMC-Amended DB Boundary - A Canonical EBG Surface

2011

New low loss inverted microstrip line using gap waveguide technology for slot antenna applications

2011

New BOR1 and decoupling efficiencies for characterizing ultra-wideband reflectors and feeds for future radio telescopes

2011

Progress report on developing metamaterial EBG-based gap waveguide components and packaging solutions between 1 GHz and several 100 Ghz

2011

Micromachined ridge gap waveguide for sub millimeter and millimeter wave applications

2011

Uncertainties in estimating ergodic MIMO capacity and diversity gain of multiport antenna systems with different port weights

2011

Fast Converging Measurement of MRC Diversity Gain in Reverberation Chamber Using Covariance-Eigenvalue Approach

2011

Comparison of Ergodic Capacities From Wideband MIMO Antenna Measurements in Reverberation Chamber and Anechoic Chamber

2011

The Method of Equivalent Dipole Moments (MEDM) - a Novel CBFM Approach for the Fast and Accurate Solution of Dielectric-Scattering Problems

IMPROVED BROADBAND MULTIDIPOLE ANTENNA WITH FREQUENCY-INDEPENDENT RADIATION CHARACTERISTICS

2011

Cryogenic 2-13 GHz Eleven feed for reflector antennas in future wideband radio telescopes

2011

Design and experimental verification of ridge gap waveguides in bed of nails for parallel plate mode suppression

2011

Design of Band-Pass Filter Using Gap Waveguide Technology

Waveguides and transmission lines in gaps between parallel conducting surfaces

Study of Random Line-of-Sight Caused by Arbitrary User Positions and Orientations with Application to MIMO OTA Measurements of Wireless Devices

2011

Comparisons of different methods to determine correlation applied to multi-port UWB eleven antenna

Design of Micromachined Ridge Gap Waveguides for Millimeter-Wave Applications

2011

Including embedded element antenna characteristics in winner ii channel models and comparison with isotropic propagation environment

Measurement uncertainties of capacities of multi-antenna system in anechoic chamber and reverberation chamber

2011

Compact dual-polarized 1.2 - 10 GHz eleven feed by folding outer elements for large decade-bandwidth radio telescopes

2011

The gap waveguide as a metamaterial-based electromagnetic packaging technology enabling integration of MMICS and antennas up to THz

2011

Modelling EBG surfaces using amended DB boundary conditions

2011

Dispersion Characteristics of a Metamaterial-Based Parallel-Plate Ridge Gap Waveguide Realized by Bed of Nails

2011

Measurements of RFID Tag Sensitivity in Reverberation Chamber

2011

Increasing parallel plate stop-band in gap waveguides using inverted pyramid-shaped nails for slot array application above 60GHz

2011

Improving microstrip filters with gap waveguide packaging

2011

State-of-the-art measurements of LTE terminal antenna performance using reverberation chamber

2011

Numerical studies of bandwidth of parallel-plate cut-off realised by a bed of nails, corrugations and mushroom-type electromagnetic bandgap for use in gap waveguides

2011

Developing hard waveguides based on gap waveguide concept

2011

Algorithm and modeling for fast optimization and design of large log-periodic array antennas with commercial EM solvers

2011

Threshold Receiver Model for Throughput of Wireless Devices with MIMO and Frequency Diversity Measured in Reverberation Chamber

2011

Estimation of average Rician K-factor and average mode bandwidth in loaded reverberation chamber

2011

Spatial correlations of incremental sources in isotropic environment such as reverberation chamber

2011

About Random LOS in Rician Fading Channels for MIMO OTA Tests

2011

Estimation of Average Rician K-factor in Reverberation Chamber

2011

Determination of maximum doppler shift in reverberation chamber using level crossing rate

IMPROVED METHOD AND APPARATUS FOR MEASURING THE PERFORMANCE OF ANTENNAS, MOBILE PHONES AND OTHER WIRELESS TERMINALS

Multipath emulator for Simulation of wireless terminals' performance

2010

Doppler Spread in Reverberation Chamber Predicted From Measurements During Step-Wise Stationary Stirring

Design of microwave circuits in ridge gap waveguide technology

Validation of ridge gap waveguide performance using in-house TRL calibration kit

Compact formulas for diversity gain of two-port antennas

EBG-based gap waveguide for applications up to THz

Electromagnetic scattering from circular cylinders with PEC/PMC boundaries

Reduction of radiation from central exciting region of Eleven feed and pattern improvements for VLBI 2010 applications

Development of a compact Eleven feed cryostat for the Patriot 12m antenna

Design of cryogenic 2-14 GHz Eleven feed for reflector antennas for future radio telescopes

On diversity performance of two-element coupling element based antenna structure for mobile terminal

Power divider in ridge gap waveguide technology

Compact Formulas for Diversity Gain of Two-Port Antennas

Performance of different theoretical small antennas in isotropic 3-D and horizontal 2-D multipath environments with application to OTA testing

Packaging of microstrip circuits using gap waveguide approach

Comparison of two decade bandwidth feeds for reflector antennas: Eleven antenna and quadridge horn

Effects of intrinsic radiation Q on mismatch factor of three types of small antennas: single-resonance, gradual-transition and cascaded-resonance types

Analysis of statistical uncertainties involved in estimating ergodic MIMO capacity and diversity gain in Rayleigh fading environment

The ridge gap waveguide as a wideband rectangular hard waveguide

Comparison of RMS delay spread and decay time measured in reverberation chamber

Progress report on developing the metamaterial EBG-based gap waveguide technology for millimeter and submillimeter waves

Concept of gap waveguide and measured results for first demonstrator

Using lid of pins for packaging of microstrip board for descrambling the ports of Eleven antenna for radio telescope applications

Losses in ridge gap waveguide compared with rectangular waveguide and microstrip lines

On using isotropic multipath as reference environment for OTA performance: Ray-based multipath simulation tool for studying convergence and uniqueness of different user-related statistical expectations when estimating ergodic capacity and diversity gain

2010

Construction of Green's functions of parallel plates with periodic texture with application to gap waveguides - A plane wave spectral domain approach

Quasi-TEM H-plane horns with wideband open hard side-walls

About measurements in reverberation chamber and isotropic reference environment

On using isotropic multipath as reference environment for OTA performance: Uncertainty due to convergence of statistical expectation when estimating ergodic capacity and diversity gain

A low noise integrated 0.3-16 GHz differential amplifier for balanced ultra wideband antennas

2010

Reply to Comments on ‘Decoupling efficiency of a wideband Vivaldi focal plane array feeding a reflector antenna’

Packaging of microstrip circuits using bed of springs to suppress cavity modes - a replacement for bed of nails

Q-factor comparisons between new gap waveguide technology and standard rectangular waveguide

2010

A new type of the quasi-TEM eigenmodes in a rectangular waveguide with one corrugated hard wall

Cryogenic 2-14GHz low noise receiver for radio astronomy using Eleven feed

Comparison of diversity gains of wideband antennas measured in anechoic and reverberation chambers

2010

Cryogenic integration of 2-14 GHz Eleven Feed in wideband receiver for VLBI 2010

Approximated closed form characteristic impedance for the bed of nails-based gap waveguide

On-going work with the cryogenic Eleven antenna at the MIT Haystack Observatory

Definition of unifying decoupling efficiency of different array antennas - case study of dense focal plane array feed for parabolic reflector

Groove gap waveguide - A rectangular waveguide between contactless metal plates enabled by parallel-plate cut-off

System noise calculations over the decade bandwidth of the Eleven feed

Ray based multipath simulation tool for studying convergence and estimating ergodic capacity and diversity gain for antennas with given far-field functions

Efficient spectral domain Green's function analysis of novel metamaterial bandgap guiding structures

System noise calculations over the decade bandwidth of the Eleven feed for radio telescope applications

Packaging of active and passive microwave circuits using lid or bed of curved posts

Frequency-dependent effects of platform and wall antenna stirring on measurement uncertainty in reverberation chamber

OTA measurements of wireless stations in reverberation chamber versus anechoic chamber: from accuracy models to testing of MIMO systems

Performance of directive multi-element antennas versus multi-beam arrays in MIMO communication systems

Design and realization of a linearly polarized Eleven feed for 1-10 GHz

Local metamaterial-based waveguides in gaps between parallel metal plates

Accuracy of Antenna Input Reflection Coefficient and Mismatch Factor Measured in Reverberation Chamber

2009

Channel sounding of loaded reverberation chamber for Over-the-Air testing of wireless devices - coherence bandwidth versus average mode bandwidth and delay spread

Accuracy in Reverberation Chamber for Wireless Testing: a Simple Formula for the Number of Independent Samples

Experimental Demonstration of Local Quasi-TEM Gap Modes in Single-Hard-Wall Waveguides

Local wave Green's functions of parallel plate metamaterial-based gap waveguides with one hard wall

Analysis of global eigenmodes in an oversized rectangular waveguide with a hard surface on one broad wall for planar slot array antenna applications

Rician K-factor as an Accuracy Limitation in Reverberation Chamber and Verification in Different Reverberation Chamber

Numerical study of position stirring and frequency stirring in loaded reverberation chamber

Parallel plate cavity mode suppression in microstrip circuit packages using a lid of nails

Numerical analysis of a metamaterial-based ridge gap waveguide with a bed of nails as parallel-plate mode killer

Fundamental properties of canonical soft and hard surfaces, perfect magnetic conductors and the newly introduced DB surface and their relation to different practical applications including cloaking

Mode densities in rectangular, cylindrical and spherical cavities in application to the reverberation chamber

Study of Excitation on Beam Ports versus Element Ports in Performance Evaluation of Diversity and MIMO Arrays

Theoretical and experimental challenges when developing the metamaterial EBG-based gap waveguide technology for millimeter and submillimeter wave circuitry

Design of Transition from Coaxial Line to Ridge Gap Waveguide

Developing a cooled 2-14 GHz Eleven feed for SKA and VLBI 2010

Optimization of large log-periodic dual-dipole antenna by using genetic algorithm on embedded element in small log-periodic array

Study of the characteristic impedance of a ridge gap waveguide

Design of Transitions and Calibration Kit in New Wideband Metamaterial-based Gap Waveguide Transmission Line Technology For Millimeter and Submillimeter Waves

Electrical Design of a Cooled 2-14 GHz Eleven Feed for SKA and VLBI 2010

Accuracy of antenna mismatch factor and input reflection coefficient measured in reverberation chamber

Modelling of soft and hard surfaces using ideal perfect electric conducting/perfect magnetic conducting strip grids

Characterization of Feeds for Radio Telescopes

Searching for analytic modal solutions for the gap waveguide

Dispersion characteristics of a metamaterial-based parallel plate ridge waveguides

X- Ka dual band prime focus feed for satellite earth terminals

Development of a coolable 2-14 GHz Eleven feed for future radio telescopes for SKA and VLBI 2010

Challenges When Developing the New Wideband Metamaterial EBG-based Gap Waveguide Technology for Millimeter and Submillimeter Wave Applications

Three Metamaterial-based Gap Waveguides between Parallel Metal Plates for mm/submm Waves

Wideband, lowloss, low-cost, quasi-TEM metamaterial-based local waveguides in air gaps between parallel metal plates

Determination of Measurement Uncertainty of Different Reverberation Chambers

Direct Coupling as a Residual Error Contribution During OTA Measurements of Wireless Devices in Reverberation Chamber

Decoupling efficiency of a wideband Vivaldi focal plane array feeding a reflector antenna

Alternative ridge gap waveguide design using a mushroom-type EBG surface

Theoretical derivation and measurements of the relationship between coherence bandwidth and RMS delay spread in reverberation chamber

Cut-off bandwidth of metamaterial-based parallel plate gap waveguide with one textured metal pin surface

Blockage reduction in thick cylinders by shaping hard cross sections

Design, Manufacture and Test of Eleven Feed for 1-13 GHz

Realistic RF invisibility or not: Comparisons of the original approach using hard surfaces & last years metamaterial cloaking

Characterization of Efficiency, System Noise Temperature and Sensitivity of Focal Plane Array Receiving Systems

Comparison of bandwidths of mushroom-type EBG surfaces and corrugated and strip-type soft surfaces when used as narrow ground planes

Further investigations of fundamental directivity limitations of small antennas with and without ground planes

Comparison of blockage widths of ideally hard cylinders of different cross-sectional shapes

Relations between coherence bandwidth and average mode bandwidth in reverberation chamber for wireless device measurement

Detection of local quasi-TEM waves in oversized waveguides with one hard wall for killing higher order global modes

Optimization of 200-800 MHz Eleven Feed for Use in Reflector Antennas of GMRT

Modal solutions in dual-depth longitudinally corrugated hard waveguide

Parametric Characterization of Parabolic Reflector Antennas Fed by Focal Plane Arrays

Blockage reduction of rhombic cylinders using meta-surfaces

Progress report on developing Eleven feed for VLBI2010 and SKA frequency bands

Cloaking Since 1988 Using the Original Invisibility Concept Based on Hard Surfaces

On unifying efficiency concepts of phase arrays, focal plane arrays and MIMO arrays

Degradation of MIMO-capacity due to correlation and efficiency of practical antennas

Three Fast Ways of Measuring Receiver Sensitivity in a Reverberation Chamber

Development of decade bandwidth and multiband feeds for future scientific and commercial reflector antenna systems

A Comparsion of Antenna Diversity Characterization Methods using Reverberation Chambers and Drive Tests

Characterization of multi-port Eleven antenna for use in MIMO system

Report on Developing Decade Bandwidth Eleven Feeds for Radio Telescopes such as SKA and VLBI 2010

Radiation Q and radiation efficiency of wideband small antennas and their relation to bandwidth and cut-off of spherical modes

Comparison of bandgaps of mushroom-type EBG surface and corrugated and strip-type soft surfaces

Radiation efficiency as a fundamental limitation of wideband dense arrays for multi-beam applications

Fundamental directivity and efficiency limitations of small antennas with one or more ports

RF Invisibility Using Metamaterials: Harry Potter's Cloak or the Emperor's New Clothes?"

Improvement of input reflection coefficient of Eleven antenna – a compact wideband feed for reflector antennas

Bandgaps and cloaks with soft and hard surfaces

2007

The Eleven antenna feed for monopulse tracking and combining L-, C-, X- and Ku- satellite bands

Measurements of the mutual coupling and radiation efficiencies of dense wideband arrays in reverberation chamber

Measurement of embedded element efficiencies of wideband dense arrays in reverberation chamber

Diversity characterization of optimized two-antenna systems for UMTS handsets

On the limitation of dense focal plane array feeds for multi-beam reflector antennas characterized by the radiation efficiency

Measurements of total radiated power of UMTS phones in reverberation chamber

Reverberation Chamber for Characterizing Antennas and Mobile Termi­nals under Rayleigh Fading: Efficiency, TRP, TIS, AFS, diversity, MIMO, UWB."

Validity of Approximate Boundary Conditions in Analysis of Strip-Loaded Planar and Curved Surfaces

The European School of Antennas: Results and Perspectives

Optimization of 200-800 MHz Eleven feed for use in reflector antennas of GMRT

Bandgaps and cloaks with soft and hard sur­faces

Comparison of different loading configurations and numerical models of reverberation chambers

Monopulse tracking performance of multi-port Eleven antenna for use in terminals for satellite communications

Software for Optimizing multi-port antennas based on precomputed embedded element patterns from commerical codes

20 Years with Bandgaps and Invisibility Cloaking Using Soft and Hard Surfaces

Numerical study of different loading configurations and stirring methods of reverberation chambers

Tripling Bandwidth of Hat Feed by genetic Algorithm Optimization

Curved frequency selective surface analysis based on the G1DMULT algorithm

Optimization of antenna diversity gain by combining full-wave and circuit simulations

Evaluation of the performances of several four-antenna systems in a reverberation cham­ber

Reducing Sidelobes from Blocking Struts by Metamaterials Cloaking and Shape Optimization

Mushroom Surface Cloaks for Making Struts Invisi­ble

Tripling Bandwidth of Hat Feed by Genetic Algorithm Optimization

MIMO Performance of Enhanced UMTS Four-Antenna Structures for Mobile Phones in the Presence of the User's Head

Characterizing FPA-fed reflectors in terms of classical subefficiencies and array methods

Optimal number of elements and element spacing of wide-band focal plane arrays for a new generation radio telescope

Overview of 6 Years R&D on Characterizing Wireless Devices in Rayleigh Fading Using Reverberation Chambers

Analysis of spherical arrays of microstrip antennas using moment method in spectral domain

Fast numerical model of reverberation chambers with metal stirrers using moment method and cavity Green's function calculated by Ewald summation

Comments on “Application of Double Negative Materials to Increase the Power Radiated by Electrically Small Antennas”

Control of reflection and mutual coupling losses in maximizing efficiency of dense focal plane arrays

Investigation of heavily loaded reverberation chamber for testing of wideband wireless units

Measurements of a 150 to 1700 MHz low loss Eleven feed for the 42 m radio telescope at Green Bank

Comparison of bandgaps and bandwidths of mushroom-type EBG surface and strip-type soft surfaces when used as narrow ground planes

Relations between radiation characteristics of small antennas located in free space and close to lossy phantom

Measurements of receiver sensitivity of mobile terminals in Rayleigh fading by using reverberation chamber

Measurements of total isotropic sensitivity and average fading sensitivity of mobile phones in reverberation chambers

Single- and dual- band multimode hard horn antennas with partly corrugated walls

Overview of 5 Years R&D on Characterizing Wireless Devices in Rayleigh Fading Using Reverberation Chambers

Reverberation chamber evaluation of multi-antenna handset having low mutual coupling and high efficiencies

Numerical Study of Position and Frequency Stirring in Loaded RC

Multimode hard horn antennas with partly corrugated walls for 20/30 GHz dual-reflector antennas with multiple beams - full 3D simulations and measurements

Realized diversity gain of active DECT phones in talk position measured in reverberation chamber

Overview of the software integration activities within ACE

Characterization of antennas for MIMO systems using the classical embedded element pattern and measurements in reverberation chamber

Fundamental limitations of focal plane arrays characterized in terms of radiation efficiencies of their embedded element patterns

Development of the decade bandwidth Eleven antenna - a new quasi log-periodic low-profile feed for reflector antennas

Designing reverberation chambers for measurements of small antennas and wireless terminals: accuracy, frequency resolution, lowest frequency of operation, loading and shielding of chamber

Efficient modeling of reverberation chambers using method of moments with cavity Green's function calculated by Ewald summation

Multimode hard horn antennas with partly corrugated walls - a new feed for single and dual band dual-reflector antennas with multiple beams

Compact low-profile decade bandwidth log-periodic folded dipole feed for reflector antennas

Reverberation Chamber for Antenna Measurements: Modeling Using Method of Moments, Spectral Domain Techniques, and Asymptote Extraction

Reverberation chamber measurements of diversity gain of active DECT phones both in talk position and free space

Analysis of Wires Inside a Reverberation Chamber Using the Method of Moments Combined with Spectral Domain Techniques and Asymptotic Extraction

Development of G1DMULT based moment method codes for analysis of cylindrical and spherical array antennas and periodic structures

Size reduction using strip-type soft surfaces rather than patch-type EBGs

Development of three models of the Eleven antenna: a new decade bandwidth high performance feed for reflectors

Maximizing the effective diversity gain of two parallel dipoles by optimizing the source impedance

Numerical study of miniaturized hard waveguide elements for multifunction direct radiating arrays and focal plane arrays

The eleven antenna: A compact low-profile decade bandwidth dual polarized feed for reflector antennas

Modal solutions in dual-depth longitudinally corrugated hard waveguides for design of dual-band 20/30 GHz hard horns

Dyadic GO reflection coefficient for PEC/PMC strip surface and application to planar case for dipole radiation

Dual band hard horn for use in cluster-fed multi-beam antennas in Ka-band

A method of moments solution for wires inside a reverberation chamber using spectral domain techniques and asymptotic extraction

Radiation efficiency, correlation, diversity gain, and capacity of a six monopole antenna array for a MIMO system: Theory, simulation and measurement in reverberation chamber

Measured radiation properties of a broadband terminal antenna

Efficient computation of high Q resonator realized by thin film multilayer metal/dielectric structure

A multilevel multiregion computation framework for the analysis of antenna structures

European effort towards a unified framework for the analysis of antenna structures

Characterization of mobile terminals in Rayleigh fading by using reverberation chamber

Bandgaps and bandwidths of different soft surfaces used as finite ground planes of small antennas

Characterization of mobile phones on reception by measurements of total isotropic sensitivity and average fading sensitivity in reverberation chamber

The effect of source and load impedance on radiation efficiency and diversity gain of two parallel dipoles

Decade bandwidth medium gain feed for single or dual reflector antennas

Numerical modelling of reverberation chamber using method of moments and Ewald summation

On the odd-even property of functions for boundary currents over kz in a spectrum of two-dimensional solutions

Numerical investigation of bandgaps of different soft surfaces: Corrugations and strip loaded substrate with vias

Study of high-efficiency corrugated hard-horn antennas using classical approaches: Hard circular waveguide mode, phase factor, and aperture integration

Study of antennas in reverberation chamber using method of moments with cavity Green’s function calculated by Ewald summation

Moment method computation of miniaturized rectangular hard waveguide with passband and stopband

Comparison of efficiency measurement methods for small antennas

Characterization of small antennas and active mobile terminals in Rayleigh fading by using reverberation chamber

Special issue on artificial magnetic conductors, soft/hard surfaces, and other complex surfaces - Guest Editorial

Full wave analysis of mutual coupling between dipoles over different EBG surfaces: AMC, soft and hard surfaces

Analysis and measurements of conformal patch array antennas on multilayer circular cylinder

Multi-mode hard horn feeds for Ka-band cluster-fed multi-beam satellite antennas

Spectral domain analysis of dipole coupling over different electromagnetic bandgap structures

Analysis of the effect of a limited sector of a circular cylinder on radiation of conrformal patch antennas by using G2DMULT

Transverse strip arrays used as hard surfaces and AMCs in miniaturized quasi-TEM waveguides

Experimental study of strip dipole FSS-loaded rectangular waveguide

Comparison between bandgaps and bandwidths of back radiation of different narrow soft ground planes

Miniaturized rectangular hard waveguides for use in multi-frequency phased arrays

Measurements of total isotropic sensitivity and average fading sensitivity of CDMA phones in reverberation chamber

Round Robin test of active and passive small terminal antennas

Measurements of a 1 to 13 GHz model of a dual polarized low-profile log-periodic feed for US-SKA

Mode-matching modeling of a hard conical quasi-TEM horn realized by an EBG structure with strips and vias

Design of hard horn antenna using both single dominant quasi-TEM mode model and mode-matching

Method of moments solution of reverberation chamber using spectral domain techniques and asymptotic extraction

Characterization of Antennas and Wireless Terminals in Loaded Reverberation Chambers

Anomalous behavior of the TEM mode when radiating from an open-ended circular waveguide with ideal hard wall

Electromagnetic characterization of MIMO antennas including coupling using classical embedded element pattern and radiation efficiency

Miniaturized dielectric-loaded rectangular waveguides for use in multi-frequency arrays

A novel low-profile log-periodic ultra wideband feed for the dual-reflector antenna of US-SKA

Measurements of realized diversity gain of active DECT phones and base-stations in a reverberation chamber

Some properties of an open-ended circular waveguide with one- and two-sided ideal hard walls,

Hard and Soft Gangbuster Surfaces

Full wave analysis of mutual coupling between dipoles over different EBG surfaces: AMC, soft and hard surfaces

An advanced code based on the mode-matching method and Wiener-Hopf-Weinstein method for analysis of hard horn antennas

A solid hand phantom for mobile phones and results of measurements in reverberation chamber

Full wave analysis of mutual coupling between dipoles over different EBG surfaces: AMC, soft and hard surfaces

Multipath Characterization of Antennas for MIMO Systems in Reverberation Chamber Including Effects of Coupling and Efficiency