宽带差分双圆极化层压谐振器天线

IF 3.7 2区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Yaowei Hou;Junming Ding;Yueping Zhang;Junfa Mao
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引用次数: 0

摘要

本文首次报道了一种宽带差分双圆极化(CP)层压谐振器天线。采用两个90°混合耦合器和四个旋转对称的l型探头作为双CP LRA的馈电。90°混合耦合器的四个输入端口形成双CP操作的两对差分端口。当每对差分端口都有差分信号时,LRA工作在简并优势模式${\rm TE}^{y}_{101}$和${\rm TE}^{x}_{011}$模式,相位差为- 90°/+90°,分别辐射左手圆极化(LHCP)或右手圆极化(RHCP)波。为了演示,对天线原型进行了仿真、制造和实验。差分双CP LRA在0.119λ0的低轮廓下,受- 10 dB差分阻抗、3 dB轴比(AR)和- 15 dB lhcp - rhcp隔离带宽的限制,测量有效带宽为28.6%。此外,辐射模式是稳定和对称的。带内增益在1db内变化。所提出的LRA在多圆极化差分无线通信系统中具有很好的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Wideband Differential Dual Circularly Polarized Laminated Resonator Antenna
A wideband differential dual circularly polarized (CP) laminated resonator antenna (LRA) is reported in this letter for the first time. Two 90° hybrid couplers and four rotationally symmetrical L-probes are adopted as the feeding of the dual CP LRA. The four input ports of the 90° hybrid couplers form two pairs of differential ports for dual CP operations. When each pair of differential ports is supplied with differential signals, the proposed LRA works in its degenerate dominant modes, ${\rm TE}^{y}_{101}$ and ${\rm TE}^{x}_{011}$ modes, with a −90°/+90° phase difference, which radiates left-handed circular polarization (LHCP) or right-handed circular polarization (RHCP) waves, respectively. For demonstration, an antenna prototype is simulated, manufactured, and experimented. The differential dual CP LRA in a low profile of 0.119λ0 shows a broad measured effective bandwidth of 28.6% confined by the −10 dB differential impedance, 3 dB axial ratio (AR), and −15 dB LHCP-to-RHCP isolation bandwidths. Besides, the radiation patterns are stable and symmetric. The in-band gain varies within 1 dB. The proposed LRA is a promising candidate for applications in differential wireless communication systems of multiple circular polarization.
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来源期刊
CiteScore
8.00
自引率
9.50%
发文量
529
审稿时长
1.0 months
期刊介绍: IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.
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