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2021-02-01
A Novel Wideband Beam Reconfigurable Magneto-Electric Dipole Patch Antenna
By
Progress In Electromagnetics Research C, Vol. 109, 111-123, 2021
Abstract
A novel wideband beam reconfigurable magneto-electric dipole patch antenna is presented in this paper. The proposed antenna consists of two H-shaped patches, two folded patches, an E-shaped feeding structure, a side-slotted ground, and a large reflective ground. Two H-shaped patches are horizontally placed on both sides of the feed structure, and two folded patches are assembled vertically to the upper ground, which are designed as the magneto-electric dipole structure. Two symmetrically sided slots are etched on the upper ground to reduce the profile, and an E-shaped strip is employed in the feeding structure to broaden the bandwidth. To suppress the backward radiation, a lower ground with large size is designed as a reflector. Four binary switches are symmetrically integrated on the stubs of H-shaped patches. By switching them ON or OFF simultaneously, the current distribution is changed to achieve beam reconfigurability. Finally, a set of antenna prototype with four configurations is fabricated and measured. The measured results show that maximum impedance bandwidth achieves up to 77.8% at 2.7 GHz from 2.0 GHz to 4.1 GHz. At 2.7 GHz, the measured peak gains are 8.4 dBi, 9.3 dBi, 8.1 dBi, and 8.7 dBi, where the beams point to -21˚, 0˚, 21˚, and 34˚, respectively in E-plane.
Citation
Min Wang Huifeng Yang Nan Hu Wenqing Xie Yuxin Mo Zhenghan Chen Zhongyuan Liu Zhengchuan Chen , "A Novel Wideband Beam Reconfigurable Magneto-Electric Dipole Patch Antenna," Progress In Electromagnetics Research C, Vol. 109, 111-123, 2021.
doi:10.2528/PIERC20112805
http://www.jpier.org/PIERC/pier.php?paper=20112805
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