Abstract
This paper describes the performance of a printed antenna in terms of gain and directivity using frequency selective surface (FSS) reflector. This structure composed of a source feed printed antenna designed on the bottom substrate and two layers of 7×5 FSS reflectors on the upper substrate. The antenna has an overall dimension of 30×32×1.6 mm3 which operates over 6.5-8.3 GHz. The antenna is designed on an FR4 substrate with thickness of 1.6 mm using HFSS simulator and various performances of the antenna are reported. The impedance bandwidth in excess of 41.2 % and 6.25 dB peak gain is obtained. The directivity of the structure varies between 6.3-8 dB, 5.5-8 dB and 4-6.4 dB for the two layers FSS, single layer FSS and antenna without FSS, respectively. The far field patterns of the antenna at selected frequencies such as 7, 7.5 and 8 GHz are also presented.
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