Title :
Design and Implementation of an Integrated UWB/Reconfigurable-Slot Antenna for Cognitive Radio Applications
Author :
Erfani, Elham ; Nourinia, Javad ; Ghobadi, Changiz ; Niroo-Jazi, Mahmoud ; Denidni, Tayeb A.
Author_Institution :
Dept. of Electr. Eng., Urmia Univ., Urmia, Iran
fDate :
7/4/1905 12:00:00 AM
Abstract :
A new incorporated planar ultrawideband (UWB)/reconfigurable-slot antenna is proposed for cognitive radio applications. A slot resonator is precisely embedded in the disc monopole radiator to achieve an individual narrowband antenna. A varactor diode is also deliberately inserted across the slot, providing a reconfigurable frequency function in the range of 5-6 GHz. The slot is fed by an off-centered microstrip line that creates the desired matching across the tunable frequency band. The measured antenna parameters are presented and discussed, confirming the simulation results.
Keywords :
cognitive radio; microstrip lines; microwave antennas; monopole antennas; planar antennas; slot antennas; ultra wideband antennas; varactors; cognitive radio; disc monopole radiator; frequency 5 GHz to 6 GHz; integrated UWB reconfigurable-slot antenna; microstrip line; microwave antennas; planar antenna; reconfigurable frequency function; slot resonator; ultra wideband antennas; varactor diode; Antenna measurements; Antenna radiation patterns; Resonant frequency; Sensors; Slot antennas; Ultra wideband antennas; Cognitive radio (CR); frequency-reconfigurable; slot antenna; ultrawideband (UWB) antenna; varactor diode;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2011.2182631
