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Abstract
A reconfigurable rotated-T slot antenna for cognitive radio operation in the lower part (3.1–6 GHz) of the UWB frequency range is presented. The antenna can operate one at a time at six adjacent sub-bands. The switching from one sub-band to another is done electronically using PIN diodes. The antenna exhibits a nearly omnidirectional radiation pattern in the horizontal plane of operation with predominantly vertical polarization.
Disclosure statement
No potential conflict of interest was reported by the authors.