Wide scan Phased Antenna Array Based on Cavity Backed ELC Slot Microstrip Patch Antenna Element
ABSTRACT This paper presents a novel wide scan phased array antenna based on metamaterial (MTM) electrical LC (ELC) slot and L probe fed cavity backed patch antenna element in X band. The antenna uses the ELC slot as the main radiating element and a meta tool to reduce mutual coupling between array elements by eliminating horizontal far field radiation. Applying the proposed MTM ELC slot in the patch to improve impedance matching and widening of scanning range is simulated and investigated. The simulation results have shown wide angle impedance matching up to 80@ in both E and H planes over 6.25% bandwidth in X band.