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 re°ector provides the flexibility of mounting a planar antenna close to conducting bodies, including screens and cases.
A constant gain ultra-wideband antenna with a multi-layer frequency selective surface / Y., Ranga; Matekovits, Ladislau; A. R., Weily; K. P., Esselle. - In: PROGRESS IN ELECTROMAGNETICS RESEARCH. LETTERS. - ISSN 1937-6480. - ELETTRONICO. - 38:(2013), pp. 119-125. [10.2528/PIERL13021007]
A constant gain ultra-wideband antenna with a multi-layer frequency selective surface
MATEKOVITS, Ladislau;
2013
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 re°ector provides the flexibility of mounting a planar antenna close to conducting bodies, including screens and cases.Pubblicazioni consigliate
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https://hdl.handle.net/11583/2511703
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