Antenna Gain and Bandwidth Enhancement Using a Dielectric Superstrate at 60 GHz

Abstract

Recently, an antenna referred to as fringing field antenna, which is a narrow band in the 60 GHz band. Here, the gain of this antenna is enhanced by broadening the bandwidth and enhancing its gain. A dielectric superstrate is used making a gain enhancement by 4 (i.e., from 11.5 dBi to 15.5 dBi). In addition, 10-dB matching bandwidth is increased from 3.67 % (2.2 GHz) to 7.5 % (4.5 GHz).