Modified Elliptical Microstrip Antenna with Semicircular Stub and FSS ground for WBAN Applications

An elliptical shaped patch antenna with semi-circular stub is presented in this paper for THz biomedical applications. The objective of this research is to build a THz antenna for WBAN applications with maximum broadside gain, wide bandwidth, little reverse irradiation, a small footprint, and a low profile antenna. In order to achieve these objectives, FSS (Frequency selective surface) technique is utilized on the ground plane to improve the bandwidth performance and gain stability. The proposed antenna provides an impedance bandwidth of 7.7112 THz (0.6831 THz – 8.3943 THz) and with an average gain of 13.95 dB. The parametric analysis of defected FSS ground plane is also presented simultaneously. Proposed antenna has small footprint of 0.8×0.8×0.08129 mm
³
and planar configuration which provides cost effective and ease of fabrication.