Title :
A highly efficient & linear integrated PA for Ka/Q-bands
Author :
Katz, Allen ; Gray, Robert ; Matsuoka, Junichi
Author_Institution :
New Jersey Coll., Ewing, NJ, USA
Abstract :
A highly efficient and linear power amplifier has been developed for use in millimeter wave radio systems. Applications include Internet satellite terminals, broadband wireless communications and high-speed data links. By combining, at millimeter wave, traveling wave tube (TWT) based microwave power module (MPM) technology with an advanced predistortion linearizer (> 40 GHz operation), a high performance, low cost, small size and mass power amplifier has been achieved. This amplifier is referred to as an L-MMPM for linearized millimeter wave power module. It provides a peak power of 100 Watts in less than 100 cubic inches of volume (including power supply), and can produce a 10 Watt 64QAM signal with an adjacent channel power ratio (ACPR) of better than 45 dB at an overall efficiency greater than 10 percent.
Keywords :
microwave power amplifiers; travelling wave amplifiers; travelling wave tubes; 10 W; 100 W; Internet satellite terminals; Ka band; Q-band; adjacent channel power ratio; advanced predistortion linearizer; broadband wireless communications; high-speed data links; linear integrated power amplifier; linearized millimeter wave power module; microwave power module; millimeter wave radio systems; traveling wave tube; Artificial satellites; Broadband amplifiers; Broadband communication; High power amplifiers; Internet; Microwave technology; Millimeter wave technology; Multichip modules; Satellite broadcasting; Wireless communication;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516939
