CST – Computer Simulation Technology

Integrated Wide-Narrow Band Antenna for Switched Operation
James R. Kelly, Peter S. Hall, Peter Gardner
3rd European Conference on Antennas and Propagation, 2009. EuCAP 2009.
23-27 March 2009
3757 - 3760
Cognitive Radio (CR) is a new paradigm which promises to yield an improved quality of service for the user whilst also enabling more intensive use of the available radio frequency spectrum. CR will require integrated widenarrowband antennas for performing the search and communications functions. This paper helps to address this need by providing a new antenna which can be reconfigured between a narrow and ultra-wide impedance bandwidth. The final section of the paper demonstrates an ultra-wideband antenna having a variable lower cut-off frequency.

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