DocumentCode
1896263
Title
The minimum value for the quality factor of an electrically small antenna in spheroidal coordinates – TM case
Author
Hansen, Peder M. ; Adams, Richard
Author_Institution
Electromagn. & Adv. Technol. Div., SPAWAR Syst. Center Pacific, San Diego, CA, USA
fYear
2010
fDate
11-17 July 2010
Firstpage
1
Lastpage
4
Abstract
This paper presents results for the minimum possible radiation Q of an antenna contained within a spheroidal volume (oblate or prolate) as a function of the spheroid aspect ratio, and size with respect to a wavelength. The variation with aspect ratio gives additional information on the effect of antenna shape. The results in this paper are limited to the case of omni-directional TM modes with no energy stored within the spheroid.
Keywords
Q-factor; antenna radiation patterns; antenna shape; electrically small antenna; minimum quality factor value; omnidirectional TM modes; spheroid aspect ratio; spheroidal coordinates; Dipole antennas; Eigenvalues and eigenfunctions; Q factor; Shape; Web sites;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location
Toronto, ON
ISSN
1522-3965
Print_ISBN
978-1-4244-4967-5
Type
conf
DOI
10.1109/APS.2010.5562012
Filename
5562012
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