W-band, 5W solid-state power amplifier/combiner

Author

Schellenberg, James ; Watkins, Edward ; Micovic, Miroslav ; Kim, Bumjin ; Han, Kyu

Author_Institution

QuinStar Technol., Torrance, CA, USA

fYear

2010

fDate

23-28 May 2010

Firstpage

240

Lastpage

243

Abstract

This paper reports a W-band solid-state power amplifier with an output power of 5.2W at 95 GHz and greater than 3 watts over the 94 to 98.5 GHz band. These SOA results were achieved by combining 12 GaN MMICs in a low-loss radial-line combiner network. The 12-way combiner demonstrates an overall combining efficiency of 87.5%, and excluding combiner conductor losses (0.3 dB), exhibits a combining efficiency of 93.7% at 95GHz. The size of the 12-way amplifier/combiner is only 2.39" dia. × 1.5" length. This work represents the first application of the radial-line combiner configuration to applications at W-band frequencies, and establishes new levels of performance for solid-state power amplifiers operating at these frequencies.

Keywords

III-V semiconductors; MMIC; gallium compounds; power amplifiers; power combiners; GaN; GaN MMIC; W-band solid-state power amplifier; frequency 95 GHz; frequency 98.5 GHz; low-loss radial-line combiner network; power 5 W; power 5.2 W; power combiner; Broadband amplifiers; Coaxial components; Frequency; Gallium nitride; MMICs; Power amplifiers; Power generation; Radiofrequency amplifiers; Semiconductor optical amplifiers; Solid state circuits; GaN MMIC; W-band; power amplifiers; radial-line combiner; solid-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International

Conference_Location

Anaheim, CA

ISSN

0149-645X

Print_ISBN

978-1-4244-6056-4

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2010.5517616

Filename

5517616