DocumentCode
1679379
Title
An MMIC linearized amplifier using active feedback
Author
Pedro, J.C. ; Perez, J.
Author_Institution
Dept. Electron. e Telecommun., Aveiro Univ., Portugal
fYear
1993
Firstpage
95
Abstract
Presents a single 2.4*2.4 mm/sup 2/ monolithic microwave integrated circuit (MMIC) chip which includes an L-band tuned MESFET main amplifier, and a nonlinear feedback path intended to improve its carrier-to-intermodulation margin, C/I. The circuit uses a novel concept of amplifier intermodulation distortion (IMD) cancellation, in which a small-area MESFET based linearizer is directly applied to the terminals of the main active device. The linearizer provides a 15 dB C/I improvement over a relative bandwidth of more than 12%.<>
Keywords
MMIC; feedback; field effect integrated circuits; microwave amplifiers; L-band tuned MESFET main amplifier; MMIC linearized amplifier; active feedback; carrier-to-intermodulation margin; intermodulation distortion; nonlinear feedback path; relative bandwidth; small-area MESFET; Bandwidth; Feedback circuits; Intermodulation distortion; L-band; MESFET integrated circuits; MMICs; Microwave amplifiers; Microwave integrated circuits; Monolithic integrated circuits; Tuned circuits;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 1993., IEEE MTT-S International
Conference_Location
Atlanta, GA, USA
ISSN
0149-645X
Print_ISBN
0-7803-1209-0
Type
conf
DOI
10.1109/MWSYM.1993.276934
Filename
276934
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