A single-ended differentially fed filtering patch antenna for base station application

Cheng-Long Wen; Qing-Xin Chu; Yu-Lin Chang; Yixin Li

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A single-ended differentially fed filtering patch antenna for base station application

机译：用于基站应用的单端差分滤波贴片天线

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摘要

A compact differentially fed dual-polarized patch antenna with filtering performance is proposed for 5G applications. By utilizing the half-wavelength standing current along the open-ended microstrip line, the out-of-phase output signals are obtained. Utilizing the E-shaped coupled resonator in series with the open-ended microstrip line, balanced differential feeding with filtering property are realized, as excitation for the patch. The filtering patch antenna was fabricated for demonstration. Measured results show that the antenna has −15 dB impedance bandwidths of 13.7% (3.26-3.74 GHz) and 14.2% (3.25--3.75 GHz) for two polarizations, respectively, covering the 5G band (3.3-3.6 GHz). The patch antenna achieves good port isolation and crosspolarization discrimination. In addition, the measured gain is higher than 6.8 dBi within operating band. Out of the operating band, the gain drops sharply, exhibiting a bandpass response. The out-of-band radiation suppression level of the proposed filtering patch antenna is larger than 16 dB.

机译：提出了一种具有滤波性能的紧凑型差异馈电双极化贴片天线，用于5G应用。通过利用沿开口微带线的半波长常设电流，获得超相输出信号。利用与开放式微带线串联串联的E形耦合谐振器，实现了具有过滤特性的平衡差动馈送，作为贴片的激励。制造过滤贴片天线以用于演示。测量结果表明，天线具有-15dB阻抗带宽为13.7％（3.26-3.74GHz）和14.2％（3.25--3.75GHz），分别为两个偏振，覆盖5G频段（3.3-3.6GHz）。贴片天线达到良好的端口隔离和交叉极化歧视。此外，在操作带内测量的增益高于6.8 dBi。在操作频段中，增益急剧下降，呈现带通响应。所提出的滤波贴片天线的带外辐射抑制水平大于16dB。

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来源
《International journal of RF and microwave computer-aided engineering》 |2021年第5期|22588.1-22588.6|共6页
作者
Cheng-Long Wen; Qing-Xin Chu; Yu-Lin Chang; Yixin Li;
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作者单位

School of Electronic and Information Engineering South China University of Technology Guangzhou China;

School of Electronic and Information Engineering South China University of Technology Guangzhou China;

School of Electronic and Information Engineering South China University of Technology Guangzhou China;

School of Electronic and Information Engineering South China University of Technology Guangzhou China;

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原文格式 PDF
正文语种 eng
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关键词
differentially fed; fifth generation; filtering antenna; patch antenna; single-ended;

机译：差异喂养;第五代;过滤天线;贴片天线;单端;

A single-ended differentially fed filtering patch antenna for base station application

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