Design of compact broadband dual-polarized antenna for 5G applications

Cam Ha Le Thi; Son Xuat Ta; Xuan Quyen Nguyen; Khac Kiem Nguyen; Chien Dao-Ngoc

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Design of compact broadband dual-polarized antenna for 5G applications

机译：用于5G应用的紧凑型宽带双极化天线设计

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This article presents a compact broadband dual-polarized antenna for use in the sub-6 GHz 5G applications. The antenna is a novel magneto-electric (ME) dipole with microstrip-line aperture-coupled feed, that is, it is composed of two orthogonal microstrip-lines coupled with four shorted patches through a crossed slot for the broadband dual-polarized radiation. The electric and magnetic dipole modes are formed by the shorted patches and the gap between the patches, respectively. Therefore, the antenna achieves a low-profile. To reduce the back radiation at the aperture-coupled feed and remain the low-profile, the antenna is backed by a high impedance surface. The final design with an overall size of 50 mm × 50 mm × 12.5 mm (0.5λ_(min) × 0.5λ_(min) × 0.125λ_(min)) has been fabricated and measured. The measurements result in a bandwidth of 33% (3.02-4.02 GHz) for voltage standing wave ratio ＜1.5 and an isolation of ＞25 dB among the two ports. Its bandwidth covers the specific 5G NR n78 band (3.3-3.8 GHz). In addition, the antenna achieved a broadside gain of 7.9-8.5 dBi, a front-to-back ratio of ＞18 dB, and a cross-polarization level of ＜− 20 dB across the operational bandwidth.

机译：本文介绍了一个紧凑的宽带双极化天线，用于Sub-6 GHz 5G应用。天线是一种新型磁电（ME）偶极子，具有微带线孔径耦合进料，即，它由两个正交微带线组成，其与四个短路贴片的通过交叉的槽，用于宽带双极化辐射。电和磁性偶极模式分别由短路贴片和贴片之间的间隙形成。因此，天线达到低调。为了减少孔径耦合进料的后辐射并保持低调，天线被高阻抗表面压回。已经制造和测量整体尺寸为50mm×50mm×12.5mm（0.5λ_（min）×0.5λ_（min）×0.125λ_（min））的最终设计。测量结果导致33％（3.02-4.02GHz）的带宽，用于电压驻波比<1.5，并在两个端口中的隔离> 25 dB的隔离。其带宽涵盖了特定的5G NR N78频段（3.3-3.8 GHz）。另外，天线实现了7.9-8.5dB1的宽边增益，前后比> 18dB的前后比，以及在运行带宽上的横偏振水平的<-20 dB。

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来源
《International journal of RF and microwave computer-aided engineering》 |2021年第5期|22615.1-22615.13|共13页
作者
Cam Ha Le Thi; Son Xuat Ta; Xuan Quyen Nguyen; Khac Kiem Nguyen; Chien Dao-Ngoc;
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School of Electronics and Telecommunications Hanoi University of Science and Technology Ha Noi Vietnam Faculty of Engineering and Technology Quy Nhon University Quy Nhon Vietnam;

School of Electronics and Telecommunications Hanoi University of Science and Technology Ha Noi Vietnam;

School of Electronics and Telecommunications Hanoi University of Science and Technology Ha Noi Vietnam;

School of Electronics and Telecommunications Hanoi University of Science and Technology Ha Noi Vietnam;

School of Electronics and Telecommunications Hanoi University of Science and Technology Ha Noi Vietnam;

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原文格式 PDF
正文语种 eng
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关键词
aperture-coupled feed; broadband; compact-size; dual-polarization; high impedance surface; magneto-electric dipole;

机译：光圈耦合饲料;宽带;紧凑型;双极化;高阻抗表面;磁电偶极;

Design of compact broadband dual-polarized antenna for 5G applications

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