Performance analysis of pentagon shaped microstrip patch antenna

The trend in today's wireless application is to design antennas that are compact, robust and ease to integrate with RF circuit components. Microstrip patch antenna is one such type that satisfies the above requirement. But the two main factors of an antenna namely the gain and the bandwidth are low for patch antennas. Usually the gain range of patch antenna is 1–2dB. The most straightforward way of increasing these factors involves the use of low dielectric substrate with increased thickness, but this inevitably leads to surface wave generation. As a result, sensible substrate thickness has to be employed. This paper presents pentagon shape patch antenna with probe feed for three different dimensions. The analysis is done using Ansoft HFSS software version 15.0. The performance parameters such as bandwidth, gain and return loss of the proposed antennas are compared.