Abstract: In this paper, frequency reconfigurable microstrip patch antenna is presented. In this design it makes use of three patches with different shapes in order to tune for multiple frequencies. The antenna design make use of micro strip feeding technique, PIN diode is used for switching between the patches to tune for different frequencies. The antenna is capable of resonating at a frequency of 6.2GHz, when no PIN diode is connected. When a PIN diode is connected between two patches it will generate a frequency of 5.6GHz and 2.2GHz. When all the three patches are connected it will reconfigure itself to generate a different frequency i.e., 3.4GHz. This antenna is simulated and measured results are used to demonstrate the performance of the antenna.
Keywords: Reconfigurability, PIN Diode, Microstrip Antenna, Circular Patch and HFSS.