X-Band GaN Power Amplifier for Future Generation SAR Systems

A X-band GaN monolithic microwave integrated circuits (MMIC) High Power Amplifier (HPA) suitable for future generation Synthetic Aperture Radar systems is presented. The HPA delivers 14 W of output power, more than 38% of PAE in the frequency bandwidth from 8.8 to 10.4 GHz. Its linear gain is greate...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2014-04, Vol.24 (4), p.266-268
Main Authors: Resca, Davide, Raffo, Antonio, Di Falco, Sergio, Scappaviva, Francesco, Vadala, Valeria, Vannini, Giorgio
Format: Article
Language:English
Subjects:
Amplifiers
Applied sciences
Circuit properties
Current measurement
Design. Technologies. Operation analysis. Testing
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Frequency measurement
Gallium nitride
Gallium nitrides
GaN
Integrated circuits
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Microwaves
MMIC (circuits)
MMICs
monolithic microwave integrated circuits (MMICs)
Noise levels
Optimization
Power amplifiers
power amplifiers (PAs)
Power generation
Power measurement
Radiolocalization and radionavigation
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Synthetic aperture radar
Telecommunications
Telecommunications and information theory
X-band
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Description
Summary:A X-band GaN monolithic microwave integrated circuits (MMIC) High Power Amplifier (HPA) suitable for future generation Synthetic Aperture Radar systems is presented. The HPA delivers 14 W of output power, more than 38% of PAE in the frequency bandwidth from 8.8 to 10.4 GHz. Its linear gain is greater than 25 dB. For the first time an MMIC X-band HPA has been designed by directly measuring the transistor behavior at the current generator plane. In particular, optimum device load-line has been selected according to the chosen performance tradeoffs.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2014.2299552