Integrated Wide-Narrow Band Antenna for Switched Operation
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: PDFPersonal VDE Members are entitled to a 10% discount on this title
Kelly, James R.; Hall, Peter S.; Gardner, Peter (Department of Electronic and Computer Engineering, The University of Birmingham, UK)
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 wide-narrowband 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.