A quasi-spiral antenna for THz — IR dual-band sensors

Abstract

This paper presents a quasi-spiral THz antenna which acts as an Infrared (IR) Fresnel zone plate lens. This antenna can be the base for compact THz - IR integrated dual band sensors. The proposed configuration consists of a submillimeter wave antenna (working at around 400 GHz) which acts as a modified Fresnel Zone Plate lens for the in the IR range (around 28 THz).