Effect of slots on microstrip patch antenna characteristics

In this paper, a novel design approach of microstrip patch antenna is presented. The antenna consists of slotted conducting patch element with air filled dielectric medium. The antenna is single-feed type and wideband. The proposed design has a reduced antenna size with high gain, low VSWR and good radiation pattern. The proposed antenna is suitable for various modern wireless communication system applications like WiMax Services, RADAR, UK fixed satellite services operating in the frequency range of 3 - 4 GHz where antenna with low profile, small size, light weight and broad pattern is required. Measurement results are in good agreement with theoretical results.