A Low-Profile Dual-Polarized Microstrip Antenna Array for Dual-Mode OAM Applications

被引：102
作者：
Li, Hui [1 ]
Kang, Le [1 ]
Wei, Feng [1 ]
Cai, Yuan-Ming [1 ]
Yin, Ying-Zeng [1 ]
机构：
[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Shaanxi, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2017年 / 16卷
关键词：
Antenna array; dual-polarized (DP); dual-mode; orbital angular momentum (OAM); single-layer feeding network; ORBITAL-ANGULAR-MOMENTUM;
D O I：
10.1109/LAWP.2017.2758520
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A dual-polarized dual-mode orbital angular momentum (OAM) microstrip antenna array is presented. The OAM radio beams are generated by employing a four-element antenna arraywith specific excitation. Each antenna element is an aperture-coupled microstrip patch antenna with a low profile of 0.1 lambda(0). The quasi-cross-shaped aperture is excited by a U-shaped and an M-shaped microstrip feedline, which leads to two orthogonal polarizations. By adopting two types of phase-shifting schemes, the antenna array can be used to produce dual-mode OAM waves (l = +/- 1). The measured results show that the proposed antenna array has achieved good impedance matching over the band of 5.4-5.6 GHz, and a port-to-port isolation better than 25 dB. Moreover, the rotational phase fronts indicate waves properly bearing OAM with different states.
引用
收藏
页码：3022 / 3025
页数：4
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