A narrowband corner slot patch antenna for 2.4 GHz wireless radio communications

Abstract

A narrowband corner slot patch antenna has been designed for industrial, scientific, and medical radio band (ISM band) for short distance radio communication. These antennas are analyzed and are optimized using Ansoft High-Frequency Structure Simulator (HFSS). The objective is to shrink the size of the radiating patch element without compromising antenna performance. The proposed design is investigated under various parametric analyses and are compared. The overall size of the antenna is reduced by 32.8% when compared with traditional patch antenna available in the market. This can be achieved by introducing four slots inclined at 450 in the radiating patch. The antenna provides a bandwidth of 25% in ISM band (|S11|≤10dB) between 2.37 GHz to 2.43 GHz. In addition, maximum Voltage Standing Wave Ratio (VSWR) value near to 1.0 and gain of 7.5 dB is achieved. Finally, good agreement has been obtained for using this proposed design for short distance radio communications.