A Wideband Dual-Band Magneto-Electric Dipole Antenna With Improved Feeding Structure

In this letter, a wideband dual-band magneto-electric dipole antenna with improved feeding structure is presented. A U-shaped electric dipole antenna is employed to generate the dual resonant frequencies. A folded shorted patch that works as a magnetic dipole antenna is assembled vertically to the g...

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Bibliographic Details
Published inIEEE antennas and wireless propagation letters Vol. 13; pp. 1729 - 1732
Main Authors He, Kai, Gong, Shu-Xi, Gao, Feng
Format Journal Article
LanguageEnglish
Published IEEE 2014
Subjects
Antenna feeds
Antenna radiation patterns
Broadband antennas
Dipole antennas
Dual-band
magneto-electric dipole
Magnetoelectric effects
Wideband
wideband antenna
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Summary:In this letter, a wideband dual-band magneto-electric dipole antenna with improved feeding structure is presented. A U-shaped electric dipole antenna is employed to generate the dual resonant frequencies. A folded shorted patch that works as a magnetic dipole antenna is assembled vertically to the ground plane. The antenna is excited by a novel feeding line with a polygonal structure that is designed to improve the impedance matching. Simulated and measured results show that the dual operation bands with bandwidths of 72% from 1.48 to 3.15 GHz and 21% from 4.67 to 5.78 GHz for |S 11 | <; -10 dB were achieved. Stable and symmetric unidirectional radiation patterns, low cross-polarization level, low back-radiation, and an antenna gain ranging from 6.5 to 9.1 dBi were obtained over the dual operating bands.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2014.2353792