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Theoretical and experimental study of the input impedance of the cylindrical cavity-backed rectangular slot antennasThe authors study the input impedance of a cylindrical cavity-backed slot antenna based on mode matching and the complex Poynting theorem. Two cavity-backed slot antennas were fabricated to verify the theory. The numerical results agree very well with measurements. Two resonant frequencies were found from the input impedance. One resonant frequency is attributed to the rectangular slot and the other is due to the cavity. The slot length controls the first resonant frequency and has a much stronger effect on the input impedance at the antenna operating frequency as compared with the cavity length.
Document ID
19920031585
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Li, Ming-Yi
(Texas A&M Univ. College Station, TX, United States)
Hummer, Kenneth A.
(Texas A&M Univ. College Station, TX, United States)
Chang, Kai
(Texas A & M University College Station, United States)
Date Acquired
August 15, 2013
Publication Date
August 1, 1991
Publication Information
Publication: IEEE Transactions on Antennas and Propagation
Volume: 39
ISSN: 0018-926X
Subject Category
Communications And Radar
Accession Number
92A14209
Distribution Limits
Public
Copyright
Other

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