DocumentCode
3207266
Title
High efficiency amplifier using rectangular waveform
Author
Toyoda, Seiji
Author_Institution
Dept. of Electr. Eng., Osaka Inst. of Technol., Japan
fYear
1995
fDate
16-20 May 1995
Firstpage
705
Abstract
This paper describes a new high efficiency amplifier. It consists of two circuits: the first one produces the rectangular waveform, and the second one makes its operating angle (current flowing angle) small. Using this waveform with small operating angle, we can obtain an amplifier having large power added efficiency. A single power amplifier using the rectangular waveform was constructed and tested. In the experiment, the operating frequency was in the 0.9 GHz band. The maximum power was 5.1 W, and the power added efficiency was 65% and 76% when the operating angle was 70/spl deg/ and 30/spl deg/, respectively.<>
Keywords
UHF power amplifiers; field effect transistor circuits; 0.9 GHz; 5.1 W; 65 to 76 percent; UHF power amplifier; current flow angle; high efficiency amplifier; operating angle; power added efficiency; rectangular waveform; Capacitors; Circuit synthesis; Circuit testing; Energy consumption; High power amplifiers; Mobile communication; Power amplifiers; Signal synthesis; Telephony; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location
Orlando, FL, USA
ISSN
0149-645X
Print_ISBN
0-7803-2581-8
Type
conf
DOI
10.1109/MWSYM.1995.406010
Filename
406010
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