DocumentCode
1430890
Title
A Reevaluation of the Radiation Q Bounds for Loop Antennas
Author
Thal, H.L.
Volume
51
Issue
3
fYear
2009
fDate
6/1/2009 12:00:00 AM
Firstpage
47
Lastpage
52
Abstract
A new realistic lower bound for the radiation Q of loop antennas is presented. It includes the contribution of energy within a circumscribed sphere, and is at least three times the often-referenced Q based only on external energy. The new bound is compared with actual Q values over a range of electrical diameters and aspect ratios, using design equations and electromagnetic simulations.
Keywords
Q-factor; antenna theory; equivalent circuits; loop antennas; Q bounds radiation reevaluation; Q-factor; antenna theory; design equation; electrical diameters; electromagnetic simulation; equivalent circuits; loop antennas; realistic lower bound; Equations; Q factor; antenna measurements; antenna theory; electrically small antennas; equivalent circuits; loop antennas; spherical antennas;
fLanguage
English
Journal_Title
Antennas and Propagation Magazine, IEEE
Publisher
ieee
ISSN
1045-9243
Type
jour
DOI
10.1109/MAP.2009.5251193
Filename
5251193
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