Title :
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
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;
Conference_Titel :
Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6056-4
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2010.5516220
