A new compact Ka-band spatial power combining architecture

Author

Dong, Shi-wei ; Wang, Lei ; Ma, Wei ; Chen, Hong ; Xu, Jun

Author_Institution

Nat. Key Lab. of Space Microwave Technol., China Acad. of Space Technol. (Xi´´an), Xian

fYear

2008

fDate

10-12 Nov. 2008

Firstpage

282

Lastpage

285

Abstract

High power amplifier is the key element of microwave transmitters. Solid-state spatial power combiner is issued to replace traveling wave tube amplifier (TWTA) in space communication systems. To comply with space requirements a new compact Ka-band spatial power combining architecture is proposed using a double-faced tray. To match the 2 times 2 combining structure, double antipodal finline is designed to achieve power distributing/combining and transition between waveguide and microstrip. A 29~30 GHz spatial power combiner is designed following this architecture. With it the compact architecture proves effective and prospective.

Keywords

microstrip components; microwave power amplifiers; power combiners; space communication links; travelling wave amplifiers; compact Ka-band solid-state spatial power combining architecture; double antipodal finline; double-faced tray; frequency 29 GHz to 30 GHz; high power amplifier; microstrip; microwave transmitter; space communication system; traveling wave tube amplifier; waveguide; Finline; Laboratories; Microwave amplifiers; Microwave technology; Power amplifiers; Power combiners; Solid state circuits; Space exploration; Space technology; Transmitters; compact; double antipodal finline; double-faced tray; spatial power combine;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology, 2008. ICCT 2008. 11th IEEE International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-2250-0

Electronic_ISBN

978-1-4244-2251-7

Type

conf

DOI

10.1109/ICCT.2008.4716239

Filename

4716239