DocumentCode :
2761003
Title :
A theoretical examination of the bandwidth limits for mixed mode electrically small antennas
Author :
Abbaspour-Tamijani, Abbas
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ
fYear :
2008
fDate :
5-11 July 2008
Firstpage :
1
Lastpage :
4
Abstract :
The classical limits on the radiation Q and bandwidth have been reexamined for the case electrically small antennas with mixed TE/TM modes. A comparison with the case of transmission lines suggests that some of the underlying assumptions of the classical model may not be applicable in the cases where both TE and TM modes exist. The near filed energy flow has been studied in the case of an electro-magnetic dipole pair, showing the rotational nature of the fields. A possible implementation based on gyrators has been considered as an example which shows a very wideband input matching.
Keywords :
antenna radiation patterns; dipole antennas; electromagnetic dipole pair; gyrators; mixed mode electrically small antennas; transmission lines; wideband input matching; Antenna theory; Bandwidth; Electric resistance; Frequency; Immune system; Impedance; Multiconductor transmission lines; Polarization; Power transmission lines; Tellurium;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
Type :
conf
DOI :
10.1109/APS.2008.4618974
Filename :
4618974
Link To Document :
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