A Reconfigurable Plate ZAGI Antenna Using HIS Reflector for Gain Increasing

A novel design of a Plate ZAGI Antenna with HIS reflector is proposed, analyzed, simulated and implemented in this paper. In this Antenna instead of normal reflectors we use a high impedance surface reflector. It is made of continuous metal that conducts dc current and eliminates ac current with a certain bandwidth. This new surface omits surface waves and so, image currents are not phase reversed. Simulation and experimental results show a very considerable gain increasing in proposed antenna against usual antenna.