Design and Implementation of Reconfigurable Frequency and Polarization Microstrip Patch Antenna for X-Band Application

Abstract

A rectangular frequency and polarization reconfigurable microstrip patch antenna with dimensions 9.12x6.49mm has been designed which is suitable for X band applications. The final design has been presented in three gradual steps by cutting slots on the four corners of the patch and the ground. A dielectric material “FR4 epoxy” with dielectric constant of 4.4 is used as a substrate for the proposed antenna. The designed antenna parameters are calculated at 10ghz frequency with offset microstrip line feed mechanism. In this paper, the current on radiating patch is redistributed by using PIN diodes. By changing the state of the diodes, both frequency and polarization reconfiguration is achieved.