Z-Shaped Dual band Circular Polarized Microstrip Antenna for THz Communication

Abstract

In this paper a simple z-shaped dual band circular polarized (CP) terahertz (THz) monopole antenna is designed for short range communication applications. Circular polarization is obtained by rotating the z-shape radiating element by 45 ⁰ around the horizontal plane with microstrip line. The antenna is operating at dual band with bandwidth of 50 GHz (0.19-0.24 THz) and 340 GHz (0.27-0.61THz). It has a left hand circular polarized (LHCP) antenna having below 3dB axial ratio with bandwidth of 110 GHz (0.38-0.49 THz) and 15 GHz (0.575-0.59 THz). The total dimension of the antenna is 850×770×197 μm ³ .