DocumentCode
996990
Title
Thick-film 3-stage m.i.c. IMPATT diode-amplifier on ferrite
Author
Genner, R. ; Richmond, W. ; Braddock, P.W.
Author_Institution
Royal Signals & Radar Establishment, Malvern, UK
Volume
13
Issue
7
fYear
1977
Firstpage
193
Lastpage
195
Abstract
A 3-stage hybrid m.i.c. gallium-arsenide IMPATT-diode amplifier is described with an output of 1.05 W at 9.2 GHz, a large-signal gain of 21 dB and a bandwidth to ¿3 dB greater than 1 GHz; the amplifier is stable at all input levels. The concept of an effective radius, first proposed to explain the properties of disc capacitors, has been used successfully in the circulator design. Close attention has been paid to screening the unencapsulated diodes to prevent r.f. radiation and to incorporating resistive-loading circuits to suppress spurious out-of-band oscillations.
Keywords
IMPATT diodes; hybrid integrated circuits; microwave amplifiers; microwave integrated circuits; thick film circuits; GaAs diode; circulator design; effective radius; ferrite; thick film 3-stage MIC IMPATT diode amplifier;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19770142
Filename
4249288
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