Jan Carlsson

System Identification of Electromagnetic Devices Based on Full-Wave Computations

Evaluation of a Random Line-of-Sight Over-the-Air Measurement Setup at 28 GHz

Accurate and Efficient Crosstalk Analysis by Full-wave Computations and System Identification

Frequency Selective Surfaces for Electromagnetic Shielding of Pocket-Sized Transceivers

2020

Verification of the Random Line-of-Sight Measurement Setup at 1.5-3 GHz including MIMO Throughput Measurements of a Complete Vehicle

2020

Robust Connectivity With Multiple Directional Antennas for Vehicular Communications

Impact of Azimuthal Antenna Pattern Sampling and Variation on Throughput Measurements

2019

Test Zone Verification Procedures in a Random-LOS Measurement Setup

2018

A Simple Method for Robust Vehicular Communication with Multiple Nonideal Antennas

A numerical analysis of the random-LOS measurement accuracy for vehicle applications

Measurements and simulations for validation of the random-LOS measurement accuracy for vehicular OTA applications

Evaluation of a simplified Random-LOS measurement setup for characterizing antennas on cars

Reverberating Dreams - the Story of an OTA Chamber

Reverberation chamber for OTA measurements: The history of a dream!

2016

In memory of Professor Per-Simon Kildal

2016

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

2016

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

2016

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

2015

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

2015

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

2015

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

2015

Requirements and test methods for vehicular antenna systems supporting cooperative ITS applications

2015

Combined LTE and IEEE 802.11p Antenna for Vehicular Applications

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

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

Utilizing Two-Ray Interference in Vehicle-to-Vehicle Communications

2014

Revisiting the Complex Correlation in a MIMO System

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

2014

Evaluation of V2X Antenna Performance Using a Multipath Simulation Tool

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

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

2013

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

2013

On OTA test in the presence of Doppler spreads in a reverberation chamber

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

2013

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

2013

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

2012

Validation of Shielding Effectiveness Measurement Method Using Nested Reverberation Chambers by Comparison with Aperture Theory

2012

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

2012

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

2012

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

2012

Antenna Research at CHASE – Chalmers Antenna Systems Excellence Centre

2011

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

2011

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

2011

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

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

2011

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

2011

Estimation of Average Rician K-factor in Reverberation Chamber

2011

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

2011

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

2011

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

2011

About Random LOS in Rician Fading Channels for MIMO OTA Tests

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

2011

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

About measurements in reverberation chamber and isotropic reference environment

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

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

Non-foster networks for improvement of radiation efficiency and effective diversity gain of a multi-port antenna

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

Analysis and optimization of MIMO capacity by using circuit simulation and embedded element patterns from full-wave simulation

Characterization of small antennas for hearing aids by several measurement techniques

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

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

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

Measurements of diversity gain and radiation efficiency of the Eleven antenna by using different measurement techniques in Etech project

Multipath emulator for Simulation of wireless terminals' performance

2010

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

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

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

Compact formulas for diversity gain of two-port antennas

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

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

Circuit based optimization of radiation characteristics of single and multi-port antennas

2009

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

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

Analysis and optimization of multi-port antennas by using circuit simulation and embedded element patterns from full-wave simulation

Analysis and Optimization of Multi-Port Antennas by using Circuit Simulation and Embedded Element Patterns from Full-Wave Simulation

Measuring Performance of 3GPP LTE Terminals and Small Base Stations in Reverberation Chambers

Können Störaussendungen von Bussystemen durch symmetrischen Betrieb vollständig vermieden werden

Terminal Antennas in ACE2

Method for Circuit Based Optimizations of Radiation Characteristics of Multi-Port Antennas

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

Benchmarking for measurement facilities for small antennas and active terminals within ACE - Results and experience from the first two years

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

EMC aspects of development of data bus systems in vehicles

Comparison of different loading configurations and numerical models of reverberation chambers

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

Combination of Full Wave Sim­ulations and Equivalent Circuit Models in Predicting Coupling between Antenna Element and Nearby Object in Mobile Phone

Numerical simulations for EMC

Susceptibility analysis of a wireless car safety related system

Activities on terminal antennas in ACE2

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

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

Effective Radiated Power Measurements in Reverberation Chamber

Numerical Simulation of Vehicle Data Buses

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

Numerical Study of Position and Frequency Stirring in Loaded RC

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

Experiences and results from benchmarking of facilities for small terminal antenna measurements within ACE

Results and experiences from two years of benchmarking of measurements facilities for small antennas and terminals within ACE

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

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

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

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

Investigation and Circumvention of Standing Wave Phenomena on Ground Reflection Antenna Test Ranges

On the Radiated Emission of Balanced Bus Systems

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

Benchmarking of facilities for small terminal antenna measurements

Comparison of efficiency measurement methods for small antennas

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

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

Benchmarking of Facilities for Measuring Small Mobile Terminals and their Antennas: Results of a Round Robin Test in ACE

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

The Safe Communication Platform

Numerical Study of a PIFA Mounted on a Car Compared to Measurements

Round Robin test of active and passive small terminal antennas

A method of moments solution of a 2D reverberation chamber using G1DMULT and asymptotic extraction

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

A method of moments solution for a mechanical mode stirrer in a reverberation chamber using spectral domain techniques

FEM-FDTD Hybrid Simulation of a PIFA inside a Car – Compared to Measurements

Numerical study of mode stirring in reverberation chambers using moment method and Ewald summation

EMEC - An EM simulator based on topology

Comparison of different numerical modeling techniques for reverberation chamber: Initial 2D study

Physical asymptotic model for a conducting patch and how this enables the inclusion of dielectric substrate in a free-space moment method code

Induced currents in cables in a car when exposed to an external field or internal mobile phone – Simulations and measurements

Characterization of Antennas and Wireless Terminals in Loaded Reverberation Chambers

Benchmarking of small terminal antennas measurement facilities

Improved procedure for measuring efficiency of small antennas in reverberation chambers

Accuracy of radiation efficiency measurements in a reverberation chamber

Investigation of the Coupling to a Wire Inside a Box With Apertures by Means of FDTD Simulations

Development of reverberation chamber for accurate measurements of mobile phones and mobile phone antennas

Performance of mobile phones located in the vicinity of the human body measured in reverberation chamber

Influence of a Slot on the Induced Current in a Wire Inside a Conducting Box with a Square Aperture

FDTD-Simulation of the Electrical Environment for Vehicles by Using Cad-data Compared to Measurements

Calculation and Measurement of self-impedance of a dipole near a lossy cylinder as a reference case in reverberation chamber measurements

Numerical FDTD simulation of a validation case for small antenna measurements in a reverberation chamber

Calculation of self impedance and radiation efficiency of a dipole near a lossy cylinder with arbitrary cross section by using the moment method and a spectrum of two-dimensional solutions

Simulation of the electrical environment for vehicles by using CAD-data – Compared to real measurements

SPICE models of barrier compared to measured data

An approach to the generation of SPICE models feasible for EMC problems

Characterization of terminal antennas in reverberation chambers: Methods and results

Characterization of Antennas for Mobile and Wireless Terminals in Reverberation Chambers: Improved Accuracy by Platform Stirring

Characterization of antennas for mobile and wireless terminals by using reverberation chambers: Improved accuracy by platform stirring

EMEC – System EMC Simulator

A new method to measure radiation efficiency of terminal antennas

Measurements of terminal antennas' performance in multimode Reverberations chambers

A user-friendly computer code for radiated emission and susceptibility analysis of printed circuit boards

Simulated behaviour of fully anechoic rooms for measurement of radiated emissions

Investigations of methods to simulate the electrical environment in vehicles

A simple method to compute crosstalk on printed circuit boards

Computation of EMC Properties of Slots and Printed Circuit Boards

A method of moments program for analysis of printed circuit boards

A Computer Code for Predicting Radiation from Printed Circuit Boards

Transmission through corrugated slots

The use of corrugations to reduce transmission through slots

The use of corrugations to reduce transmission through slots

Analysis of corrugated soft edges to reduce scattering from gaps between reflecting panels

Application of artificially soft surfaces to reduce the leakage through slots