A Survey on Frequency Reconfigurable Antennas Using Passive element for ISM Band

Frequency reconfigurable antenna is the extensively utilized antenna in wireless communication applications which requires a change in operating frequencies and to switch from one channel into another without degrading its performance parameters. There are different ways like electrical, mechanical, optical and smart material loaded are used to attain frequency reconfiguration. In electrical reconfiguration method, reconfiguration is attained by using PIN diode, varactor diode and MEMS switch. In this paper, some of the frequency reconfigurable antennas which are tuned using PIN diode are reviewed. The antenna design, functionality, the attained reconfigurable frequency range and also its application are analyzed. The comparative study is also presented.