Abstract
Lens-like superstrates designed to exhibit a spatial reflectivity map are studied for use as the partially reflecting surface in Fabry-Perot cavity antennas. Profile reduction is obtained by using only a single dielectric layer of such surfaces which is found to provide improved performance than the multi-layered superstrates. The use of such surfaces results in a varied reflectivity within the cavity and makes the boresight emissions spatially coherent. This provides high boresight directivity with improved bandwidth characteristics. With this surface as super-strate of a resonant cavity antenna, performance is evaluated for a single feed exciting the cavity. Highly directive beams with 17.6dBi peak directivity and fairly suppressed side lobes are obtained over a very wide bandwidth with only a single layer lens-like surface.
Original language | English |
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Title of host publication | 2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) |
Place of Publication | Piscataway, N.J. |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 1-2 |
Number of pages | 2 |
ISBN (Electronic) | 9781479922253, 9781479922246 |
ISBN (Print) | 9781479922260 |
DOIs | |
Publication status | Published - Jul 2014 |
Event | 2014 16th International Symposium on Antenna Technology and Applied Electromagnetics, ANTEM 2014 - Victoria, BC, Canada Duration: 13 Jul 2014 → 16 Jul 2014 |
Other
Other | 2014 16th International Symposium on Antenna Technology and Applied Electromagnetics, ANTEM 2014 |
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Country/Territory | Canada |
City | Victoria, BC |
Period | 13/07/14 → 16/07/14 |