DocumentCode
1029961
Title
The optimum transient radiation from an arbitrary antenna
Author
Pozar, David M. ; Schaubert, Daniel H. ; McIntosh, Robert E.
Author_Institution
Univ. of Massachusetts, Amherst, MA USA
Volume
32
Issue
6
fYear
1984
fDate
6/1/1984 12:00:00 AM
Firstpage
633
Lastpage
640
Abstract
Bounds on the optimum transient radiation from an arbitrary antenna enclosed by a spherical surface of specified size are presented. The optimization criterion is either maximization of the radiated electric field amplitude at a specified time and far-zone position, or maximization of the radiated energy density in a specified time interval for a particular far-zone position. The latter optimization results in the prolate spheroidal wave functions. In both cases, the total energy radiated by the antenna is constrained to be 1 J, and the antenna excitation is assumed to be bandlimited. The performance of the optimum arbitrary antenna is compared to that of optimized practical antennas, such as dipoles and arrays of dipoles. The effect of a sidelobe constraint is also studied.
Keywords
Antenna transient analysis; Antenna arrays; Bandwidth; Beams; Dipole antennas; EMP radiation effects; Electromagnetic radiation; Electromagnetic transients; Radar antennas; Transient analysis; Wave functions;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1984.1143369
Filename
1143369
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