Design of Single Layer Dual Band Antenna for Secondary Radars

Abstract

In this paper a microstrip patch antenna with a U-slot and aperture feed is designed to provide dual band operation for Secondary Radars. The design starts with a simple patch antenna which has low bandwidth. Further, the introduction of U-Slot creates two resonant frequencies at 1.03 & 1.09 GHz. The analysis of the U-Slot patch, return loss characteristic & radiation pattern are shown in simulation results.