A New Approach for Bandwidth Enhancement Technique in Microstrip Antenna for Wireless Applications

These days, there is a very large demand for wireless applications. Antennas which are used in these applications require being low profile, light weight, easily mounted and broad bandwidth. The microstrip antenna suits the features mentioned except for its narrow bandwidth, typically from less than 1% to several percent. This paper introduces an alternative approach in enhancing the bandwidth of the microstrip antenna to reduce its limitation. The wireless application that is selected to be studied is the wireless local area network (WLAN) application operating at a frequency of 2.45 GHz. The bandwidth enhancement technique which is studied is the identical dual patch microstrip antenna with air-gap (IDMA). By using this technique, a bandwidth enhancement of 11.020% can be achieved