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

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

77

Lastpage

80

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;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2182631

Filename

6122485