Multiple superstrates technique for a broadband cavity resonance antenna (CRA)

Multiple superstrates technique for a broadband cavity resonance antenna (CRA)

A cavity resonance antenna (CRA) with three dielectric superstrates is examined and its performance is compared to those of the single superstrate CRAs of the lowest two resonances. The broadside directivity, bandwidth, and directivity-bandwidth product of all three antennas are investigated. When c...

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Bibliographic Details
Published in:2011 IEEE International Symposium on Antennas and Propagation (APSURSI) pp. 1254 - 1257
Main Authors: Al-Tarifi, M. A., Anagnostou, D. E., Amert, A. K., Whites, K. W.
Format: Conference Proceeding
Language:English
Published: IEEE 01-07-2011
Subjects:
Bandwidth
Broadband antennas
Cavity resonators
Dielectrics
Directive antennas
electromagnetic reflection
leaky wave antennas
propagation
Reflection
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Summary:A cavity resonance antenna (CRA) with three dielectric superstrates is examined and its performance is compared to those of the single superstrate CRAs of the lowest two resonances. The broadside directivity, bandwidth, and directivity-bandwidth product of all three antennas are investigated. When compared to the single superstrate CRAs, an appropriately designed three superstrate CRA can enhance to the maximum directivity, the bandwidth, or both, a result that is reflected as more than 75% increase to the directivity-bandwidth product in some cases. Theoretical results are validated by simulation using commercial numerical electromagnetics software.
ISBN:9781424495627
1424495628
ISSN:1522-3965
1947-1491
DOI:10.1109/APS.2011.5996515