PIER Letters
 
Progress In Electromagnetics Research Letters
ISSN: 1937-6480
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A CONSTANT GAIN ULTRA-WIDEBAND ANTENNA WITH A MULTI-LAYER FREQUENCY SELECTIVE SURFACE

By Y. Ranga, L. Matekovits, A. R. Weily, and K. P. Esselle

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Abstract:
An ultra-wideband (UWB) antenna with a novel multi-layer frequency selective surface (FSS) reflector is presented. A significant enhancement in the gain has been achieved in a low profile design while maintaining the excellent impedance bandwidth of the UWB antenna. The average peak gain of the antenna has been increased from 4 dBi to 9.3 dBi as a consequence of the use of the FSS reflector. More importantly the gain variation within the frequency range from 3 GHz to 15 GHz is only ±0.5 dB. This is a significant improvement from ±2 dB gain variation of the UWB slot antenna without the reflector. This optimized FSS reflector provides the exibility of mounting a planar antenna close to conducting bodies, including screens and cases.

Citation:
Y. Ranga, L. Matekovits, A. R. Weily, and K. P. Esselle, "A Constant Gain Ultra-Wideband Antenna with a Multi-Layer Frequency Selective Surface," Progress In Electromagnetics Research Letters, Vol. 38, 119-125, 2013.
doi:10.2528/PIERL13021007

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