Design of Polarization and Frequency Reconfigurable Probe Fed Antenna for Wireless Applications

Abstract

In this paper, polarization and frequency reconfigurable square shaped micro-strip patch antenna of dimensions (56mm,56mm,1.6mm) is proposed. In the proposed antenna the square patch is introduced with perturbations such as a square ring slot, corner truncation, pin diodes (BAR67-02V, BAR64-02W) to obtain both polarization and frequency re-configurability and a single coaxial probe feed technique is used to reduce the size of the antenna. The antenna is designed for the use of wireless applications such as ISM, WLAN, Wi-MAX. The antenna achieves an Axial Ratio of 0.31dB with a 3dB AR bandwidth of 40MHz at 2.4GHz in case of Left-Hand Circular Polarization and an AR of 0.lldB with a 3dB AR bandwidth 40MHz at 2.429 GHz in case of Right-Hand Circular Polarization. A HFSS V18.0 electromagnetic simulation tool is used in the design of proposed antenna.