Three-dimensional Electromagnetic Band-Gap (EBG) materials have been designed, by using an in-house Fourier Modal Method (FMM) code, to be employed as directivity-enhancing superstrates for planar antennas. Alumina-woodpile samples have been fabricated. Experimental results have been collected, for the transmission properties of EBG cavities, and comparisons have been performed with FMM, with good agreement. The performances of a woodpile-covered patch antenna have been measured; the superstrate has been positioned at different distances from the antenna and its orientation has been varied; comparisons with the commercial software HFSS show a good agreement. The main effect of the EBG on the antenna performances is an enhancement of about 10 dB in maximum gain.
Pajewski, L., Ponti, C. (2010). Design, Fabrication and Experimental Characterization of EBG Superstrates for Directivity Enhancement of Planar Antennas. In Proceedings of the XVIII RiNEm (2010) (pp.269-276).
Design, Fabrication and Experimental Characterization of EBG Superstrates for Directivity Enhancement of Planar Antennas
PONTI, CRISTINA
2010-01-01
Abstract
Three-dimensional Electromagnetic Band-Gap (EBG) materials have been designed, by using an in-house Fourier Modal Method (FMM) code, to be employed as directivity-enhancing superstrates for planar antennas. Alumina-woodpile samples have been fabricated. Experimental results have been collected, for the transmission properties of EBG cavities, and comparisons have been performed with FMM, with good agreement. The performances of a woodpile-covered patch antenna have been measured; the superstrate has been positioned at different distances from the antenna and its orientation has been varied; comparisons with the commercial software HFSS show a good agreement. The main effect of the EBG on the antenna performances is an enhancement of about 10 dB in maximum gain.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
