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A Wideband Magneto-Electric Dipole Antenna

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2 Author(s)
Ge, L. ; State Key Laboratory of Millimeter Waves, City University of Hong Kong, Hong Kong, China ; Luk, K. M.

A new wideband magneto-electric dipole antenna composed of a horizontal bowtie electric dipole and a vertically oriented folded shorted patch antenna is designed. The antenna is excited by a stair-shaped probe feed without the need of an additional balun. A prototype was fabricated and measured. Results show that an impedance bandwidth of 95.2%, with {\rm SWR}\leq 2 from 1.65 GHz to 4.65 GHz, was achieved. Stable radiation pattern with low cross polarization, low back radiation, nearly identical E- and H-plane patterns and an antenna gain of 7.9 \pm 0.9 dBi was found over the operating frequencies.

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Antennas and Propagation, IEEE Transactions on  (Volume:60 ,  Issue: 11 )