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Compact dual-band millimeter-wave antenna for 5G WLAN
International Journal of Microwave and Wireless Technologies ( IF 1.4 ) Pub Date : 2021-08-26 , DOI: 10.1017/s1759078721001288
Melvin Chamakalayil Jose 1 , Sankararajan Radha 2 , Balakrishnapillai Suseela Sreeja 2 , Mohammed Gulam Nabi Alsath 2 , Pratap Kumar 2
Affiliation  

This paper presents a novel compact dual-band printed antenna with an omnidirectional radiation pattern for 5G WLAN. The antenna element comprises a star-shaped patch with six disc-shaped elements at the top and a defected ground structure at the bottom, having a radius of 3.77 mm for both. The proper feeding point and alignment with its element parameters help to achieve good impedance matching. The proposed antenna has a single center feed, a low profile, and a straightforward compact structure without any feeding complexity. A high reception fidelity antenna with comparable bandwidth and moderate gain is presented. The prototype radiator was printed on a 4 mm radius and a 1.6 mm thick dielectric substrate (Rogers RT/Duroid 5880), with a dielectric constant of 2.2. The designed antenna is fabricated and measured to validate the simulation result. The measured impedance bandwidth of 1.3 GHz (27.5–28.8 GHz) and 2.2 GHz (32.45–34.65 GHz) with a respective measured gain of 1.1 and 3.2 dBi are achieved at 28 and 34 GHz. The simulated radiation efficiency of above 95% is achieved for both bands. A good agreement between simulated and measured results of the proposed work shows that the proposed antenna is suitable for 5G short-range WLAN communications.



中文翻译:

用于 5G WLAN 的紧凑型双频段毫米波天线

本文提出了一种用于 5G WLAN 的具有全向辐射模式的新型紧凑型双频印刷天线。天线元件包括一个星形贴片,顶部有六个圆盘形元件,底部有一个有缺陷的接地结构,两者的半径均为 3.77 毫米。正确的馈电点和与其元件参数的对齐有助于实现良好的阻抗匹配。所提出的天线具有单中心馈电、低剖面和简单紧凑的结构,没有任何馈电复杂性。提出了一种具有相当带宽和中等增益的高接收保真天线。原型辐射器印刷在 4 毫米半径和 1.6 毫米厚的介电基板 (Rogers RT/Duroid 5880) 上,介电常数为 2.2。对设计的天线进行制作和测量,以验证仿真结果。在 28 和 34 GHz 时实现了 1.3 GHz (27.5–28.8 GHz) 和 2.2 GHz (32.45–34.65 GHz) 的测量阻抗带宽,分别测量增益为 1.1 和 3.2 dBi。两个波段的模拟辐射效率都达到了 95% 以上。所提出工作的仿真结果和测量结果之间的良好一致性表明,所提出的天线适用于 5G 短距离 WLAN 通信。

更新日期:2021-08-26
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