用于未来5G网络的单馈双频线性/圆极化交叉时隙毫米波天线

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting Pub Date : 2017-07-09 DOI:10.1109/APUSNCURSINRSM.2017.8073276

Mehrdad Nosrati, Negar Tavassolian

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引用次数: 19

摘要

提出了一种用于未来毫米波频率下5G网络的低轮廓、单馈、双频线性/圆极化天线。天线由两个截角方形贴片组成。内贴片上蚀刻了一个十字槽。结果表明，该交叉槽产生了额外的共振，降低了辐射结构的轴比。该天线采用两段微带线非对称馈电。天线的整体尺寸仅为8mm × 8mm。该天线的工作频率为28 GHz和38 GHz。当|S11| <−10 dB时，天线在低频段线极化，阻抗带宽为27.55 GHz ~ 28.15 GHz。该天线在上频段圆极化，当| / 11| <−10 dB时，阻抗带宽为37.2 GHz ~ 38.3 GHz;当AR < 3 dB时，轴比带宽为37.1 GHz ~ 38.1 GHz。该天线具有稳定的辐射方向图，两个频段的增益均大于6 dBi。

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A single feed dual-band, linearly/circularly polarized cross-slot millimeter-wave antenna for future 5G networks

A low-profile, single-fed, dual-band, linearly/circularly polarized antenna for future 5G networks in the millimeter wave frequency regime is presented. The antenna comprises of two truncated-corner square patches. A cross-slot is etched on the inner patch. It is shown that this cross-slot generates additional resonances and lowers the axial ratio (AR) of the radiating structure. The proposed antenna is fed asymmetrically by a two-section microstrip line. The overall size of the antenna is only 8 mm × 8 mm. The proposed antenna operates at 28 GHz and 38 GHz. The antenna is linearly polarized in the lower band with an impedance bandwidth from 27.55 GHz to 28.15 GHz for |S11| < −10 dB. The antenna is circularly polarized in the upper band with an impedance bandwidth from 37.2 GHz to 38.3 GHz for |S11| < −10 dB and axial ratio (AR) bandwidth from 37.1 GHz to 38.1 GHz for AR < 3 dB. The antenna has a stable radiation pattern and a gain of greater than 6 dBi over both frequency bands.

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2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

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