High Gain and Low Cost Differentially Fed Circularly Polarized Planar Aperture Antenna for Broadband Millimeter-Wave Applications
High Gain and Low Cost Differentially Fed Circularly Polarized Planar Aperture Antenna for Broadband Millimeter-Wave Applications
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DOI：
10.1109/tap.2015.2499750
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发表时间：
2016-01-01
影响因子：
5.7
通讯作者：
Xue, Quan
中科院分区：
文献类型：
--
作者：
Bisharat, Dia'aaldin J.;Liao, Shaowei;Xue, Quan
本文提出了一种新型圆极化（CP）平面孔径天线，用于成本敏感型毫米波，特别是第五代（5G）应用。所提出的差分天线具有高增益和宽带宽，并且可以使用标准印刷电路板（PCB）技术构建在单层层压板上。这使得天线既低成本又易于与共差动电路集成。天线由一个由金属化过孔形成的开口腔组成，其中包含一组不同馈电的环形带。光带携带行波电流，与孔径的电场分布一起产生CP辐射。天线的孔径尺寸可以通过采用双环或四环状带结构来扩展，以获得更高的增益，该结构由更大的开口腔包围。设计工作在60 GHz频段的四重环带状天线原型在-10 db阻抗带宽内可实现16.7% （56-66.2 GHz）的3 db轴比（AR）带宽，在整个工作带宽内具有稳定的右手CP （RHCP）增益，峰值为14.6 dBi。
This paper presents a novel circularly polarized (CP) planar aperture antenna for cost-sensitive millimeter-wave, particularly fifth generation (5G), applications. The proposed antenna, which is a differential one, has high gain and wide bandwidth and can be built on a single-layer laminate using standard printed-circuit board (PCB) technology. This makes the antenna both low cost and easy to integrate with common differential circuits. The antenna consists of an opening cavity formed by metalized vias, which encloses a set of loop-like strips that are fed differentially. The strips carry traveling wave current which together with the aperture's E-fields distribution give rise to CP radiation. The aperture size of the antenna can be extended for higher gain by adopting a dual-or quadruple-loop-like strips configuration enclosed by a larger opening cavity. The fabricated quadruplel-oop-like strips-based antenna prototype designed to operate at 60-GHz band could achieve 3-dB axial ratio (AR) bandwidth of 16.7% (56-66.2 GHz) within its -10-dB impedance bandwidth and stable right-handed CP (RHCP) gain throughout the operating bandwidth with a peak of 14.6 dBi.