Title :
A dual port wide-narrowband antenna for cognitive radio
Author :
Ebrahimi, Elham ; Hall, Peter S.
Author_Institution :
Electron., Electr. & Comput. Eng., Univ. of Birmingham, Birmingham
Abstract :
An antenna for cognitive radio application is presented in this paper. The structure is a novel combination of wideband and narrowband antennas into the same volume. The wideband antenna is a CPW fed printed hour-glass shaped monopole which operates from 3 to 11 GHz. The narrowband antenna is a microstrip patch printed on the reverse side of the substrate, and connected to the wideband antenna via a shorting pin and designed to operate from 5.15 to 5.35 GHz. This design can be suitable for cognitive radio applications where a wideband antenna is required for spectrum sensing and a narrowband antenna for operation which can be tuned over a wide bandwidth using an external tuning circuit. The UWB and WLAN bands were chosen to demonstrate the integration principle, although cognitive radio may initially cover lower frequencies than these.
Keywords :
broadband antennas; cognitive radio; microstrip antennas; monopole antennas; ultra wideband antennas; wireless LAN; cognitive radio; dual port wide-narrowband antenna; microstrip antenna; printed hour-glass shaped monopole; ulra wideband antenna; wireless LAN; Bandwidth; Broadband antennas; Circuit optimization; Cognitive radio; Coplanar waveguides; Frequency; Microstrip antennas; Narrowband; Tuned circuits; Wireless LAN;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
