DocumentCode
1015673
Title
Loaded horizontal antenna over an imperfect ground
Author
Samii, Y. Rahmat ; Parhami, P. ; Mittra, R.
Author_Institution
California Inst. of Technology, Pasadena, CA, USA
Volume
26
Issue
6
fYear
1978
fDate
11/1/1978 12:00:00 AM
Firstpage
789
Lastpage
796
Abstract
The Fresnel reflection coefficient technique is employed to establish an
-field integral equation for the antenna current. A resistive loading of the form
is used to load the antenna. An optimization technique is discussed for determining the value of critical loading
, which enforces a traveling wave current on the antenna. Results are given for the critical loading parameters, antenna currents, input impedances and radiation patterns versus different antenna dimensions and ground permittivities and conductivities. Some representative time-domain results for such loaded antennas are also included.
-field integral equation for the antenna current. A resistive loading of the form
is used to load the antenna. An optimization technique is discussed for determining the value of critical loading
, which enforces a traveling wave current on the antenna. Results are given for the critical loading parameters, antenna currents, input impedances and radiation patterns versus different antenna dimensions and ground permittivities and conductivities. Some representative time-domain results for such loaded antennas are also included.Keywords
Elevated antennas; Loaded antennas; Antenna radiation patterns; EMP radiation effects; Electromagnetics; Feeds; Frequency; Fresnel reflection; Impedance; Laboratories; Loaded antennas; Reflector antennas;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1978.1141942
Filename
1141942
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