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
Link To Document :
