Design of dual-band CPW-fed monopole antenna with dual-band AMC surface for WLAN

Abstract

A dual-band antenna over dual-band artificial magnetic conductor surface operating in the wireless local area network (WLAN) bands is presented. The proposed dual-band antenna consists of a V-shaped slot etched on a CPW-fed trapezoidal shaped monopole antenna and has a size of 20 × 32 mm ² . A 3 × 3 unit cell dual-band artificial magnetic conductor (AMC) surface has been used as a reflector for antenna. The overall size of the antenna with AMC reflector is 57 × 57 mm ² . The proposed antenna is fabricated and tested. Experimental result shows that antenna operates form 2.23-2.50 GHz, 4.98-5.87 GHz which covers 2.4/5.2/5.5 GHz WLAN bands. It has directional radiation pattern with peak gains of 6.64 dBi, 7.84 dBi at 2.4 GHz and 5.5 GHz respectively.