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A rigorous analysis is presented together with novel designs of high-gain sub-wavelength resonant cavity antennas. The antennas under investigation are formed by partially reflective surfaces placed in close proximity over artificial periodic metamaterial ground planes with specific reflection phase responses. A full-wave periodic leaky-wave analysis is applied to this class of antennas for the first time and the results are reported and discussed. Finite-size antenna designs are studied at wireless LAN frequencies (3.7 GHz) using 3-D full-wave software and the results are compared to the predictions of the leaky-wave analysis. Furthermore, the field distribution and the effect of losses are investigated. Finally, practical designs of sub-wavelength 2-D leaky-wave antennas with high-gain performance are presented.
Published in:
Antennas and Propagation, IEEE Transactions on
(Volume:56
,
Issue:
9
)
Date of Publication: Sept. 2008
- Page(s):
- 2817 - 2825
- ISSN :
- 0018-926X
- INSPEC Accession Number:
- 10185783
- Digital Object Identifier :
- 10.1109/TAP.2008.928791
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 03 September 2008
- Issue Date :
- Sept. 2008
- Sponsored by :
- IEEE Antennas and Propagation Society
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