High efficiency 80W X-Band power amplifier using coaxial waveguide spatial power combining technique

Author

Courtney, P.G. ; Tran, Thomas ; Bartak, C. ; Behan, Sonny ; Jia, Pengyu

Author_Institution

CAP Wireless Inc., Newbury Park, CA, USA

fYear

2010

fDate

23-28 May 2010

Firstpage

1

Lastpage

1

Abstract

As the commercially available microwave monolithic integrated circuit (MMIC) amplifiers improve in output power and bandwidth a compact platform to combine a large number of these MMICs becomes very desirable. A reduced size version of a coaxial waveguide combiner structure using an antipodal finline antenna array is investigated. The reduced size coaxial waveguide combiner structure is used to demonstrate an 80 Watt power amplifier at X-Band by combining 16, 6 Watt MMIC devices and the scalability of the overall combiner platform. Around 30% efficiency has been achieved for most of the band.

Keywords

MMIC amplifiers; antenna arrays; coaxial waveguides; microwave power amplifiers; power combiners; MMIC amplifiers; X-band power amplifier; antipodal finline antenna array; coaxial waveguide spatial power combining technique; microwave monolithic integrated circuit amplifiers; power 6 W; power 80 W; Antenna arrays; Bandwidth; Coaxial components; Finline; High power amplifiers; MMICs; Microwave amplifiers; Monolithic integrated circuits; Power amplifiers; Power generation;

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.2010.5516220

Filename

5516220