DocumentCode
946668
Title
A Novel Low-Noise Downconverter System Using A Microstrip Coupled Transmission-Mode Dielectric Resonator (Short Paper)
Author
Mitchell, Mary P. ; Branner, G.R.
Volume
35
Issue
6
fYear
1987
fDate
6/1/1987 12:00:00 AM
Firstpage
591
Lastpage
594
Abstract
A low-noise downconverter system for microwave downlink applications is presented. Although most downconverters with an internally generated local oscillator have been designed utilizing MESFET´s and DGFET´s, the circuit described herein uses a silicon bipolar Darlington pair as its active device and a dielectric resonator for feedback. Downconverters of the latter type have been realized with noise figures as low as 4.57 dB and conversion gains of 7 dB over an intermediate frequency range from 0.6 to 1.8 GHz.
Keywords
Coupling circuits; Dielectric devices; Downlink; Feedback circuits; Local oscillators; MESFET circuits; Microstrip resonators; Microwave devices; Noise figure; Silicon;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/TMTT.1987.1133709
Filename
1133709
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