Christian Fager
Visar 238 publikationer
Dual-Band Dual-Output Doherty Power Amplifier for Unsynchronized Time-Division Duplexing
TX Beamforming EVM Performance of a 65 dBm-EIRP Slant-Polarized Gapwaveguide Phased Array at 28 GHz
A Wideband and Highly Efficient Circulator Load Modulated Power Amplifier Architecture
Dual-Band Dual-Output Four-Way Doherty Power Amplifier for Unsynchronized Time-Division Duplexing
Improved Digital Predistortion for Concurrent Multiband Transmission Using Frequency Relocation
Flexible Mm-Wave Sigma-Delta-Over-Fiber MIMO Link
FORMAT: A Reconfigurable Tile-Based Antenna Array System for 5G and 6G Millimeter-Wave Testbeds
A third order analogue pre-distorter MMIC for E-band PA linearisation
Wideband Sequential Circulator Load Modulated Amplifier with Back-off Efficiency Enhancement
A third order analogue pre-distorter MMIC for E-band PA linearisation
Algorithmic Radar, a Novel Low-Power Architecture for High-Accuracy PMCW Radar
Comparison of Co-located and Distributed MIMO for Indoor Wireless Communication
RF PA Predistortion using Non-Linear RF-DACs
Complexity Optimized Digital Predistortion Model of RF Power Amplifiers
A Generic Theory for Design of Efficient Three-stage Doherty Power Amplifiers
Design of a Compact GaN Power Amplifier with High Efficiency and Beyond Decade Bandwidth
Multi-Stage Gate Modulation of E-Band MMIC Power Amplifier for Efficiency Improvement
Localization With Distributed MIMO Using a High-Speed Sigma-Delta-Over-Fiber Testbed
Infinite Impulse Response Structure for Amplifier Modeling and Linearization
Circulator Load Modulated Amplifier: A Non-Reciprocal Wideband and Efficient PA Architecture
Implementation challenges and opportunities in beyond-5G and 6G communication
A Real-Valued 4D Memory Polynomial Algorithm for Mixer Modeling
A W-Band Single-Chip Receiver in a 60 nm GaN-on-Silicon Foundry Process
Investigation of power amplifier performance under load mismatch conditions
Amplitude Varying Phased Array Linearization
Emulation of Load Modulated Amplifiers Using Tabulated Load-Pull Data from a Single Amplifier
Analyzing the Back-Gating Effect in GaN HEMTs with Field-Plates Using an Empirical Trap Model
Doherty Load Modulation Based on Non-Reciprocity
E/W-Band CPW-based Amplifier MMICs Fabricated in a 60 nm GaN-on-Silicon Foundry Process
A 2x6b 8GS/s 17-24GHz I/Q RF-DAC based Transmitter in 22nm FDSOI CMOS
Automatic Distributed MIMO Testbed for beyond 5G Communication Experiments
Evaluation of Simultaneous Wireless Information and Power Transfer with Distributed Antennas
Welcome to the 15th European Microwave Integrated Circuits Conference
Antenna Systems for 5G mm-Wave Radio Access
Hybrid Beamforming Transmitter Modeling for Millimeter-Wave MIMO Applications
Emulation of Doherty Amplifiers Using Single- Amplifier Load-Pull Measurements
A Wideband and Low-Loss Spatial Power Combining Module for mm-Wave High-Power Amplifiers
Distributed Massive MIMO via all-Digital Radio Over Fiber
Thermal analysis of GaN/SiC-on-Si assemblies: Effect of bump pitch and thickness of SiC Layer
IC Design Aspects for 5G mm-Wave Systems
Performance simulation of a 5G hybrid beamforming millimeter-wave system
Intra-Array Coupling Estimation for MIMO Transceivers Utilizing Blind Over-The-Air Measurements
Massive MU-MIMO-OFDM uplink with direct RF-sampling and 1-Bit ADCs
Thermal characteristics of vertically-integrated GaN/SiC-on-Si assemblies: A comparative study
Improvement of AM-PM in a 33-GHz CMOS SOI Power Amplifier Using pMOS Neutralization
Single Digital Predistortion Technique for Phased Array Linearization
Evaluation of Distributed MIMO Communication Using a Low-Complexity Sigma-Delta-over-Fiber Testbed
Effect of VCSEL Characteristics on Ultra-High Speed Sigma-Delta-Over-Fiber Communication Links
Reducing Motion Artifacts in Microwave-Based Hemorrhagic Stroke Detection
Augmented Hammerstein model for the calibration of six-port based dual band wireless receivers
Combiner synthesis for active load-modulationbased power amplifiers
A Low-Complexity Distributed-MIMO Testbed Based on High-Speed Sigma-Delta-Over-Fiber
Design Considerations and Evaluation of a High-Speed SAR ADC
Accurate Modeling of GaN HEMT RF Behavior Using an Effective Trapping Potential
A Generalized 3-dB Wilkinson Power Divider/Combiner With Complex Terminations
Investigations of Active Antenna Doherty Power Amplifier Modules Under Beam-Steering Mismatch
Lower Bound for the Normalized Mean Square Error in Power Amplifier Linearization
RF Front-End Circuits and Architectures for IoT/LTE-A/5G Connectivity
Modeling and Linearization of Multi-Antenna Transmitters Using Over-the-Air Measurements
Analysis of Thermal Effects in Integrated Radio Transmitters
Digital Predistortion for Multi-Antenna Transmitters Affected by Antenna Crosstalk
A Flexible Multi-Gbps Transmitter Using Ultra-High Speed Sigma- Delta-over- Fiber
Characterization of linear power amplifiers for LTE applications
Design and Large-Signal Characterization of High-Power Varactor-Based Impedance Tuners
Analysis and Design of a Doherty-Like RF-Input Load Modulated Balanced Amplifier
Driver Topologies for RF Doherty Power Amplifiers
Vector-corrected Nonlinear Multi-port IQ-mixer Characterization using Modulated Signals
Efficient Millimeter Wave Doherty PA Design Based on a Low-Loss Combiner Synthesis Technique
Digital Predistortion Parameter Identification for RF Power Amplifiers Using Real-Valued Output Data
Design of linear and efficient power amplifiers by generalization of the Doherty theory
A Generalized Combiner Synthesis Technique for Class-E Outphasing Transmitters
Analysis of nonlinear distortion in phased array transmitters
Prediction of Nonlinear Distortion in Wideband Active Antenna Arrays
Analysis of thermal coupling effects in integrated MIMO transmitters
Current scaled Doherty amplifier for high efficiency and high linearity
A Doherty Power Amplifier Design Method for Improved Efficiency and Linearity
Iterative Learning Control for RF Power Amplifier Linearization
Structured Digital Predistorter Model Derivation Based on Iterative Learning Control
Symmetrical Doherty Power Amplifier With Extended Efficiency Range
Digital Predistorter Model Derivation Based on Iterative Learning Control
Accurate Circuit Characterization Methods for mm‐Wave 5G Systems
Wideband RF characterization setup with high dynamic range low frequency measurement capabilities
Symmetry based nonlinear model for GaN HEMTs
A new variant of the indirect learning architecture for the linearization of power amplifiers
A class-J power amplifier with varactor-based dynamic load modulation across a large bandwidth
An Oscilloscope Correction Method for Vector-Corrected RF Measurements
Symmetry based Nonlinear Model for GaN
WebLab: A Web-Based Setup for PA Digital Predistortion and Characterization
Optimized Design of a Dual-Band Power Amplifier With SiC Varactor-Based Dynamic Load Modulation
Outphasing combiner synthesis from transistor load pull data
Efficient and Wideband Power Amplifiers for Wireless Infrastructure Applications
A GaN MMIC Modified Doherty PA With Large Bandwidth and Reconfigurable Efficiency
Efficiency optimization for phase controlled multi-source microwave oven
Prediction of smart antenna transmitter characteristics using a new behavioral modeling approach
Linearization of dual-input Doherty power amplifiers
Symmetrical modeling of GaN HEMTS
On the Impact of Hardware Impairments on Massive MIMO
Digital predistortion of concurrent multiband communication systems
Scalability Analysis and Modeling of Future Massive MIMO Antenna Array Systems
Symmetrical Large-Signal Modeling of Microwave Switch FETs
Linearization of Difficult Cases - MIMO, GaN and Deep Compression
Symmetrical doherty amplifier with high efficiency over large output power dynamic range
Design Method for Quasi-Optimal Multiband Branch-Line Couplers
A 44 dBm 1.0-3.0 GHz GaN Power Amplifier with over 45% PAE at 6 dB back-off
Linearity, Intermodulation Distortion and ACLR in Outphasing Amplifiers
A Novel Active Load-pull System with Multi-Band Capabilities
A Wideband and Compact GaN MMIC Doherty Amplifier for Microwave Link Applications
A Modified Doherty Power Amplifier With Extended Bandwidth and Reconfigurable Efficiency
A packaged 86 W GaN transmitter with SiC varactor-based dynamic load modulation
Investigation of Push-Pull Microwave Power Amplifiers Using an Advanced Measurement Setup
Oscilloscope based two-port measurement system using error-corrected modulated signals
Modeling of Long Term Memory Effects in RF Power Amplifiers with Dynamic Parameters
2-D Enhanced Hammerstein Behavior Model for Concurrent Dual-Band Power Amplifier
Continuous Class-E Power Amplifier Modes
2-D enhanced hammerstein behavior model for concurrent dual-band power amplifiers
Design of a Concurrent Dual-Band 1.8-2.4-GHz GaN-HEMT Doherty Power Amplifier
A novel wideband and reconfigurable high average efficiency power amplifier
Digital Predistortion Using a Vector Switched Model
Linearization Study of a Highly Efficient CMOS-GaN RF Pulse Width Modulation Based Transmitter
Theory and Design of Class-J Power Amplifiers With Dynamic Load Modulation
An RF Carrier Bursting System using Partial Quantization Noise Cancellation
Branch-Line Coupler Design Operating in Four Arbitrary Frequencies
Digital Predistortion for Dual-Input Doherty Amplifiers
Concurrent Dual-Band GaN-HEMT Power Amplifier at 1.8 GHz and 2.4 GHz
Multi-band/Multi-mode and Efficient Transmitter Based on a Doherty Power Amplifier
Decade bandwidth high efficiency GaN HEMT power amplifier designed with resistive harmonic loading
Comparison of bandwidth reduction schemes in dynamic load modulation power amplifier architectures
Uncertainties in small-signal equivalent circuit modeling
A double stub impedance tuner with SiC diode varactors
High efficiency power amplifier design using switch mode optimized transistor models
Measurement setup for digital predistortion adaptation
Varactor-Based Dynamic Load Modulation of RF PAs
Highly efficient GaN-HEMT power amplifiers at 3.5 GHz and 5.5 GHz
Nonlinear Transistor Model Parameter Extraction Techniques
High-Efficiency RF Pulsewidth Modulation of Class-E Power Amplifiers
High-Efficiency Power Amplifier
High efficiency RF pulse width modulation with tunable load network class-E PA
High Efficiency Transmitter Using Varactor Based Dynamic Load Modulation
Band-reconfigurable LDMOS power amplifier
A highly efficient 1-GHz, 15-W power amplifier design based on a 50-V LDMOS transistor
A highly efficient 3.5 GHz inverse class-F GaN HEMT power amplifier
Low-complexity volterra modeling of power amplifiers
A broadband, efficient, overdriven class-J RF power amplifier for burst mode operation
Design of Highly Efficient Load Modulation Transmitter for Wideband Cellular Applications
Successive Cancellation of Power Amplifier Distortion for Multiuser Detection
Linearization of Efficiency-Optimized Dynamic Load Modulation Transmitter Architectures
Design of a Highly Efficient 2–4-GHz Octave Bandwidth GaN-HEMT Power Amplifier
Quantization Noise Minimization in ΣΔ-modulation based RF Transmitter Architectures
Model-Based Adaptation of RF Power Amplifiers
Complexity Analysis of Power Amplifier Behavioral Models
A Comparative Analysis of the Complexity/Accuracy Tradeoff in Power Amplifier Behavioral Models
Highly Efficient Dynamic Load Modulation Transmitter
Characterization Setup for Device Level Dynamic Load Modulation Measurements
An Inverse Class-F GaN HEMT Power Amplifier with 78% PAE at 3.5 GHz
I/Q Imbalance Compensation Using a Nonlinear Modeling Approach
High-Efficiency LDMOS Power-Amplifier Design at 1 GHz Using an Optimized Transistor Model
Time Mismatch Effects in a Dynamic Load Modulation Transmitter Architecture
A general method for passband quantization noise suppression in pulsed transmitter architectures.
Dynamic load modulation of high power amplifiers with varactor-based matching networks
Evaluation of high efficiency PAs for use in supply- and load-modulation transmitters
Multi-line TRL calibration compared to a general de-embedding method
Noise-Shaped Coding and Quantization Noise Suppression for Pulsed Transmitter Architectures
Dual-Input Nonlinear Modeling for I/Q Modulator Distortion Compensation
Design of High Efficiency Ka-Band Harmonically Tuned Power Amplifiers
Nonideality sources and implementation considerations in polar transmitters
Time Alignment in a Dynamic Load Modulation Transmitter Architecture
Identification of Distortions in a RF Measurement System
SiC Varactors for Dynamic Load Modulation of High Power Amplifiers
Practical realizations of high efficiency switched mode power amplifiers
Compensation of Transmitter Distortion Using a Nonlinear Modeling Approach
Nonideality Sources and Implementation Considerations in Polar Transmitters
Modeling of dual-input power amplifiers
An efficiency optimized controlling scheme for dynamic load modulation of power amplifiers
Orthonormal-basis power amplifier model reduction
Voltage/Current mode class D amplifiers and their applications
Comparative analysis of the complexity/accuracy tradeoff for power amplifier behavior models
On-wafer network analyser uncertainty estimation
Single stage CMOS Power Amplifier at 23 GHz
Polar/ET Transmitters: Non-Idealities and Practical Implementation Aspects
System Level Modelling of RF Power Amplifiers Based on Large-Signal Measurements
Large Signal IMD Behaviour: Load Line and Bias
60 GHz Single-Chip Front-End MMICs and Systems for Multi-Gbps Wireless Communication
High Efficiency Modulation of Switched Mode LDMOS Power Amplifiers
Improvement of Oscilloscope Based RF Measurements by Statistical Averaging Techniques
Modelling of LDMOSFET and GaN devices (invited)
Statistical estimation of the propagation constant in multiline calibrations
High Efficiency LDMOS Current Mode Class-D Power amplifier at 1 GHz
Single-Chip 60 GHz Transmitter and Receiver MMICs in a GaAs mHEMT Technology
Modelling of LDMOSFET and GaN devices
Understanding and prediction of IMD behaviour in power amplifiers
Systems and Applications for Broadband Wireless Communication in the 60 GHz band
Equivalent circuit modeling of LDMOS transistors
Understanding and accurate modelling of nonlinear LDMOS transistor dc characteristics
Highly Integrated 60 GHz Transmitter and Receiver MMICs in a GaAs pHEMT Technology
A general procedure for extraction of bias dependent dynamic self heating model parameters
Statistical Estimation of small signal FET model parameters and their covariance
Linearity versus efficiency in mobile handset power amplifiers: A battle without a loser
A comprehensive analysis of IMD behavior in RF CMOS power amplifiers
Optimization of power amplifier transfer characteristics
Optimal parameter extraction and uncertainty estimation in intrinsic FET small-signal models
Intermodulation distortion behavior in LDMOS transistor amplifiers
Prediction of IMD in LDMOS transistor amplifiers using a new large-signal model
Uncertainty estimation and optimal extraction of intrinsic FET small-signal model parameters
High output power, broadband 28-56 GHz MMIC frequency doubler
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Visar 19 forskningsprojekt
Konfigurerbara Mikrovågs Sändtagare för Multifunktionella Sensorer
A Dual-frequency Distributed MIMO Approach for Future 6G Applications
European Core Technologies for Next Generation Communication-Computing Hardware
Single-chip super-efficient frequency comb transmitter
Reconfigurable Intelligent Sustainable Environments for 6G Wireless Networks
Improving road safety by high-frequency 5G localization and sensing
Distributed massive MIMO with low-precision components
MyWave - Efficient Millimetre-Wave Communications for mobile users
gan-on-Silicon Efficient mm-wave euRopean systEm iNtegration plAtform (SERENA)
Kompakt Millimetervågsbyggsätt för Framtidens Kommunikations- och Sensorsystem
Smarta radiosändare för framtidens millimetervågssystem
Kompakt Millimetervågsbyggsätt för Framtidens Kommunikations- och Sensorsystem (Förstudie)
Millimetervåg-backhaul med över 100 Gbit/s - driva smarta antenner till sin spets
Digital Radio-över-Fiber: En ny typ av radiosändare för framtidens trådlösa tillämpningar
Energieffektiva millimetervågssändare
Modellering och signaloptimering för sändararkitekturer med flera antenner
High efficiency electronic cooking systems (HEECS)