Compact Frequency Reconfigurable Antenna Using PIN Diodes

In this work low profile frequency reconfigurable configurable compact micro strip patch antenna with PIN diode is presented. This design is very compact in size of 21*20*1.6 mm
²
and simple in structure. The proposed antenna has been simulated with HFSS v17 software with the use of single layer FR4 substrate at the height of 1.6 mm. Here frequency reconfiguration is obtained using single PIN diode. It operates at dual band in ON/ OFF condition. This antenna is designed to operate at 4 different frequencies 6.3GHz,7.5GHz,10.4GHz and 12.2GHz. In all the resonant frequencies, this antenna produces the VSWR value which is less than 1.5. Antenna performance is tested by analyzing its parameters like VSWR, 2D &3D gain radiation pattern and return loss. This design produces stable radiation pattern at all the operating frequencies