DocumentCode
1009517
Title
The input admittance of the rectangular cavity-backed slot antenna
Author
Cockrell, C.R.
Author_Institution
NASA Langley Research Center, Hampton, VA, USA
Volume
24
Issue
3
fYear
1976
fDate
5/1/1976 12:00:00 AM
Firstpage
288
Lastpage
294
Abstract
The input admittance of the rectangular cavity-backed slot antenna is investigated. The slot is assumed narrow so that the voltage distribution in its aperture is sinusoidal. Equations which represent the input admittance of this slot, backed by a rectangular cavity in which a single propagating wave is assumed to exist, are given. Calculations based on these representations are compared to available measured data. As the depth of the cavity increased the resonant frequency decreased and the bandwidth became narrower. Input admittance curves as a function of electrical slot length are also presented for several size cavities.
Keywords
Slot antennas; Admittance; Antenna measurements; Antennas and propagation; Aperture antennas; Equations; Impedance; Rectangular waveguides; Slot antennas; Space vehicles; Voltage;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1976.1141348
Filename
1141348
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