DocumentCode
1019788
Title
On the analysis of the umbrella antennas using the Hallen-type integral equation
Author
Egashira, Shigeru ; Taguchi, Mitsuo
Author_Institution
Saga University, Saga, Japan
Volume
28
Issue
3
fYear
1980
fDate
5/1/1980 12:00:00 AM
Firstpage
393
Lastpage
397
Abstract
Umbrella antennas of heights 
and 
are numerically and experimentally analyzed, and the effect of the junction on the current distribution is discussed. A simplified Hallen-type integral equation and an integral equation for the scalar potential of the antenna composed of straight wires are formulated and applied to umbrella antennas. The integral terms in these equations are analytically reduced to single integrals, and the extended boundary condition that the electric field vanishes on the axis of the antenna is used.
and are numerically and experimentally analyzed, and the effect of the junction on the current distribution is discussed. A simplified Hallen-type integral equation and an integral equation for the scalar potential of the antenna composed of straight wires are formulated and applied to umbrella antennas. The integral terms in these equations are analytically reduced to single integrals, and the extended boundary condition that the electric field vanishes on the axis of the antenna is used.Keywords
Integral equations; Umbrella antennas; Wire antennas; Boundary conditions; Computational geometry; Current distribution; Differential equations; Integral equations; Kernel; Receiving antennas; Surface impedance; Surface waves; Wires;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1980.1142343
Filename
1142343
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