DocumentCode
342129
Title
Cascode-delay-matched distributed amplifiers for efficient broadband microwave power amplification
Author
Krishnamurthy, K. ; Long, S.I. ; Rodwell, M.J.W.
Author_Institution
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Volume
2
fYear
1999
fDate
13-19 June 1999
Firstpage
819
Abstract
We present a broadband distributed power amplifier topology capable of providing efficiencies approaching 50%. Unlike tapered-drain-line power TWAs, high-Z/sub 0/ lines are not required, greatly improving realizability in MMIC implementation. An experimental hybrid achieved bandwidth 25% of f/sub /spl tau// with /spl sim/15 dB gain and 30/spl plusmn/5% power-added-efficiency.
Keywords
HEMT integrated circuits; MMIC power amplifiers; distributed amplifiers; travelling wave amplifiers; wideband amplifiers; 15 dB; 25 to 35 percent; HEMTs; MMIC implementation; broadband microwave power amplification; cascode-delay-matched distributed amplifiers; power-added-efficiency; realizability; Bandwidth; Broadband amplifiers; Delay lines; Distributed amplifiers; HEMTs; Impedance; MODFETs; Power amplifiers; Power transmission lines; Transmission line theory;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location
Anaheim, CA, USA
Print_ISBN
0-7803-5135-5
Type
conf
DOI
10.1109/MWSYM.1999.779885
Filename
779885
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