DocumentCode
1161424
Title
Frequency invariant interferometry
Author
Musselman, Randall L. ; Norgard, John D.
Author_Institution
Outland Commun., Colorado Springs, CO, USA
Volume
34
Issue
2
fYear
1992
fDate
5/1/1992 12:00:00 AM
Firstpage
86
Lastpage
92
Abstract
The authors discuss frequency-independent phase comparison interferometry as a method of direction finding. Theoretical relationships are derived that show the electrical phase between two elements of an array can remain approximately constant over frequency. The theory is developed for log-periodic dipole arrays. Design and fabrication of a two-element interferometer using log-periodic antennas are discussed. Experimental results are presented which show that this array remains frequency independent over a three-octave bandwidth
Keywords
antenna arrays; radio direction-finding; radiowave interferometry; antenna arrays; direction finding; electrical phase; frequency independent interferometry; log-periodic dipole arrays; phase comparison interferometry; three-octave bandwidth; two-element interferometer; Bandwidth; Directive antennas; Frequency; Interferometry; Log periodic antennas; Phase measurement; Phased arrays; Receiving antennas; Testing; Wideband;
fLanguage
English
Journal_Title
Electromagnetic Compatibility, IEEE Transactions on
Publisher
ieee
ISSN
0018-9375
Type
jour
DOI
10.1109/15.135620
Filename
135620
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