Performance Analysis of A Leaky-Wave Antenna Based on Substrate Integrated Waveguide for Radar and Satellite Communication

In this paper, we have proposed and designed a periodic leaky-wave antenna (P-LWA) based on substrate integrated waveguide (SIW) by cutting transverse and longitudinal slots. The proposed & designed LWA is susceptible of continuous beam scanning from backward, through broadside, and to forward. Furthermore, creating a proper impedance matched unit cell, the antenna has suppressed the open stop-band. The antenna has a maximum gain of 15.5 dB with the beam scanning capability from -36° to 31° which is better than in most of the contemporary reported works. This antenna is a good candidate for satellite and radar communication.