DocumentCode :
1009138
Title :
An approximate formula for calculating the directivity of an antenna
Author :
Tai, Chen-To ; Pereira, Clovis S.
Author_Institution :
Instituto de Pesquisas Espaciais, São Paulo, Brazil
Volume :
24
Issue :
2
fYear :
1976
fDate :
3/1/1976 12:00:00 AM
Firstpage :
235
Lastpage :
236
Abstract :
An approximate general formula to calculate the directivity of an antenna based upon the 
-plane and 
-plane patterns is proposed. For narrow beam patterns, the directivity is expressed in terms of the half-power beam widths of the main patterns. The better approximation of the formula presented here over the geometrical mean formula is pointed out.
-plane and -plane patterns is proposed. For narrow beam patterns, the directivity is expressed in terms of the half-power beam widths of the main patterns. The better approximation of the formula presented here over the geometrical mean formula is pointed out.Keywords :
Antennas; Antennas and propagation; Chebyshev approximation; Convolution; Dipole antennas; EMP radiation effects; Integral equations; Polynomials; Power measurement;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1976.1141313
Filename :
1141313
Link To Document :
