A Superstrate-based Metasurface Antenna for Dual Band Application

The design and performance of a superstrate-based metasurface (MS) antenna with defected ground has been reported in this paper for dual band application. The square annular shaped patch arranged in fractal manner acts as a radiating element. This antenna operates over dual frequency regions ranging from 8.28-8.62 GHz and 10.52-11.28 GHz with the respective fractional bandwidths of 4% and 7%. The antenna provides the maximum realized gain of 6.2 dBi at 10.89 GHz with endfire radiation pattern. The designed structure can be promoted for microimaging in medical analysis, satellite communication, defense and military applications.