DocumentCode
949727
Title
Impedance matching method using passive lossless feedback
Author
Brennan, P.V.
Author_Institution
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
Volume
139
Issue
5
fYear
1992
fDate
10/1/1992 12:00:00 AM
Firstpage
397
Lastpage
400
Abstract
A novel impedance matching technique is presented in which the reflected signal from a mismatched load is recombined, with appropriate phase and amplitude weightings, with the source signal so that, in principle, all the power from the source is delivered to the load. The method may be particularly suitable for transmit antenna matching units, especially those employing electrically small antennas and superconducting components. Results are derived to establish both design criteria and circuit performance, in terms of loss and bandwidth, in the presence of dissipative losses in the matching network
Keywords
antenna accessories; circulators (microwave); directional couplers; feedback; impedance matching; phase shifters; amplitude weightings; bandwidth; circulator; directional coupler; dissipative losses; electrically small antennas; impedance matching technique; loss; passive lossless feedback; phase shifter; phase weightings; superconducting components; transmit antenna matching units;
fLanguage
English
Journal_Title
Microwaves, Antennas and Propagation, IEE Proceedings H
Publisher
iet
ISSN
0950-107X
Type
jour
Filename
163696
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