Title :
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
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;
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
DOI :
10.1109/ICCT.2008.4716239
