Berlin University of Technology

Microwave Engineering Lab

Prof. Dr.-Ing. Georg Böck

Einsteinufer 25, Sekr. HFT 5-1

10587 Berlin

www-mwt.ee.tu-berlin.de

Sub-Contract: 60 GHz SiGe HBT Power Amplifier

Characterization and modelling of passive and active components

• TRL, interconnects, parasitics
• Combiner optimization (Guanella, Wilkinson, electrical funnel, DAT, etc.)
• TanD determination
• Load pull analysis
• Transistor size optimization

Power detector concept studies

• Power detector configurations (loose coupler, high-impedance sampling)
• Investigation of dynamic-range, bandwidth, waveform

Phase shifter concept studies

• Passive principles
• Active principles

PA simulation and design

• PA architecture studies
• Biasing network design
• Investigation on back-off efficiency improvement techniques
• Optimization of bandwidth and linearity
• Layout optimization
• Investigation on the driver-stage for linearity improvement
• Stability investigations

PA characterization

• Large signal behaviour, small signal characteristics, linearity, efficiency, bandwidth
• Life-time test
• Temperature test