Title :
A MMIC/hybrid high-efficiency X-band power amplifier
Author :
Litchfield, Michael ; Roberg, Michael ; Popovic, Zoya
Author_Institution :
Univ. of Colorado at Boulder, Boulder, CO, USA
Abstract :
This paper presents design and measurements of a X-band high-efficiency MMIC/hybrid PA implemented in the TriQuint 0.25-um GaN on SiC pHEMT process. In the absence of a nonlinear model valid for high-efficiency classes of operation, an output network with specific harmonic terminations is included in the MMIC, allowing for external fundamental load-pull only. The results show a power added efficiency (PAE) of 71% % with a saturated gain of 12 dB and output power of 3 W, or 4.5 W/mm, at 9.8 GHz in CW operation.
Keywords :
HEMT integrated circuits; III-V semiconductors; MMIC power amplifiers; field effect MMIC; gallium compounds; harmonics suppression; silicon compounds; wide band gap semiconductors; GaN; MMIC power amplifiers; SiC; X-band; frequency 9.8 GHz; gain 12 dB; harmonic terminations; hybrid high-efficiency power amplifier; nonlinear model; pHEMT process; power 3 W; power added efficiency; size 0.25 mum; Gallium nitride; Harmonic analysis; Impedance; MMICs; Microwave circuits; Power generation; Tuners; Hybrid; Load-Pull; MMIC; Power Amplifier;
Conference_Titel :
Power Amplifiers for Wireless and Radio Applications (PAWR), 2013 IEEE Topical Conference on
Conference_Location :
Santa Clara, CA
Print_ISBN :
978-1-4673-2915-6
Electronic_ISBN :
978-1-4673-2931-6
DOI :
10.1109/PAWR.2013.6490172
