High Gain Circular Patch Antenna Filter

Abstract

In this paper high gain circular patch antenna with a superconductor filter in communication receiver proposed using microstrip feed. The patch is activated for the frequency 2-4GHz and the filter is desinged for 2-4GHz. The antenna and filters are connected serially on the substrate to receive for a frequency band of 2 to 4GHz with high gain. The sharp beem antenna with filter is desingned for WLAN applications. LCP films are used as substrate of the radiating patches to improve the gain and efficiecy of the antenna. The strip feeding gives good impedance matching for wideband applications. Simulation result of the proposed antenna shows an average gain of 2dB for the specified frequency ranges and Maximum gain nearly 5dB was achieved between 2-4GHz frequency ranges.