Wideband slot array antenna for 1 THz band imaging device

Abstract

This paper presents the design of wideband 1 x 2 one-sided directional slot array antenna for 1 THz band imaging device. The antenna element is composed of top metal, dielectric substrate, and bottom floating metal layer. This antenna array has 2 antenna elements to achieve a high gain and wideband. The THz signal is injected by CPW transmission line. The simulation result of return loss, antenna gain is presented in this paper. The bandwidth of proposed antenna is 210 GHz (0.88 THz – 1.09 THz), the relative bandwidth is 21.3 % and the peak gain is 5.87 dBi at 1.04 THz.