Design of an Edge-Slotted Waveguide Antenna Array for Ground-Controlled Interception Radar

Abstract

In this paper; an S-band edge-slotted waveguide antenna array is proposed. The array consists of 40 antenna elements to achieve a very high-gain performance with a pencil-beam pattern. The radiating slots were milled in the narrow wall of a WR-284 waveguide. The simulated result shows that the proposed antenna operates in the S-band frequency. The gain of the antenna is 42 dBi, with a vertical and horizontal beamwidth of 1.3° and 0.4°, respectively. All these results suggest that the antenna is suitable for ground-controlled interception (GCI) Radar.