A Planar High Directional Bow-tie Yagi-Uda Antenna for Compact THz Wireless Devices

In this proposed work, a high directional planar bow-tie yagi-uda antenna, operating within 0.245–0.321 THz band, is proposed for compact THz wireless devices. This antenna employs gold material of thickness
$5\ \mu\mathrm{m}$
as conducting material while silicon dioxide is used as a dielectric substrate having compact dimensions of
$1\text{mm}\times 1.35\text{mm}\times 0.06\text{mm}$
. Parasitic elements are used as directors to enhance the directional properties. Maximum peak gain of the antenna is found to be 11.8dBi at 0.321 THz within the −10dB impedance bandwidth range. Exhibiting compact dimensions, high directivity, better performance and simple design lead to a suitable module in compact THz devices for various millimeter wave and THz applications.