Design technique for high power, high efficiency, broadband distributed amplifiers

Author

Cole, J.B. ; Platzker, A.

Author_Institution

Raytheon Co., Lexington, MA, USA

fYear

1989

fDate

13-15 June 1989

Firstpage

941

Abstract

It is shown that the power performance of distributed amplifiers can be greatly improved by designing the circuit so that the proper power match is presented to each device across the entire frequency range, even when the amplifier is designed for optimal small signal characteristics. This has been achieved by using a modified computer-aided design technique. The technique has been applied to an MMIC (monolithic microwave integrated circuit) distributed power amplifier design, with the result that improved efficiency (10-13%) and constant output power (>25 dBm) were achieved over the 6-18 GHz band, whereas conventionally designed circuits show 4-6-dB power degradation.<>

Keywords

MMIC; circuit CAD; microwave amplifiers; power amplifiers; power integrated circuits; wideband amplifiers; 10 to 13 percent; 6 to 18 GHz; MMIC distributed power amplifier design; broadband distributed amplifiers; computer-aided design technique; constant output power; efficiency; frequency range; optimal small signal characteristics; power match; power performance; Broadband amplifiers; Circuits; Design automation; Distributed amplifiers; Frequency; MMICs; Microwave devices; Microwave theory and techniques; Power amplifiers; Signal design;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1989., IEEE MTT-S International

Conference_Location

Long Beach, CA, USA

Type

conf

DOI

10.1109/MWSYM.1989.38877

Filename

38877