A novel slot for enhancing the impedance bandwidth and gain of rectangular mi-crostrip antenna

Abstract

This paper reports the design and development of rectangular microstrip antenna comprising a novel slot for enhancing the impedance bandwidth and gain. By incorporating a slot of optimum geometry at suitable location on the radiating patch, the antenna provides 78.08% (3.39–7.73 GHz) of impedance bandwidth and 3 dB of gain without changing the nature of broadside radiation characteristics when compared to conventional rectangular microstrip antenna. The proposed antenna may find applications in mobile WiMax, IEEE802.11a, HIPERLAN/2, cordless phones, fixed wireless etc. Design concept of antennas is given, and experimental results are discussed. © 2009, Electromagnetics Academy. All rights reserved.