A Novel Frequency Reconfigurable Slot Antenna
نویسنده
چکیده
A novel frequency reconfigurable slot antenna is designed for cognitive radio system. In cognitive radio system the two antennas are required one is a wideband antenna and another is frequency reconfigurable antenna. In this work a frequency reconfigurable slot antenna is designed between the switchable frequency range i.e 7.347.96 GHz at eight different frequency band and capable to operate single frequency at a time. The proposed antenna has a microstrip patch and a slot etched out in a ground plane. To achieve frequency agility, the effective length of the slot is altered by use of three p-i-n diodes which are placed within the slot at predetermined positions. Results such as return losses, gain, bandwidth and radiation patterns are presented in this paper.
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