A Dual Port Wide-Narrowband Antenna for Cognitive Radio

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 4Language: englishTyp: PDF

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Ebrahimi, Elham; Hall, Peter S. (Electronic, Electrical and Computer Engineering, University of Birmingham, Birmingham, B15 2TT, United Kingdom)

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 11GHz. 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 5.35GHz. 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.