A Compact Reconfigurable Slot-Loaded Printed Antenna for Future Wireless Applications

In this article, one new frequency reconfigurable antenna is presented. The antenna geometry comprises an annular ring shaped slot loaded rectangular patch antenna and two p-i-n diode switches. The antenna operates over 2.4 – 8.4 GHz (S band, C band, and partially in X band). The frequency hopping over the mentioned bandwidth is possible by changing switching p-i-n diode states. The proposed antenna can be used for future wireless applications such as an electromagnetic sensor for 5G and also for Cognitive Radio applications.