一种三频三角灯柱形四端口MIMO天线,International Journal of Communication Systems

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一种三频三角灯柱形四端口MIMO天线
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2022-02-21 , DOI: 10.1002/dac.5131
Praveen Vummadisetty Naidu _{1,

2} , Dhanekula Mahesh Babu ₁ , Sai Haranadh Akkapanthula _{2,

3,

4} , Arvind Kumar _{2,

5} , Neelima Vummadisetty ₂ , Sanjeev Kumar ₆

Affiliation

本文介绍了一种新颖紧凑的多频段四端口非对称共面带馈三角形灯柱形印刷多输入多输出 (MIMO) 天线。所提出的 MIMO 天线是在 FR-4 ( _εr = 4.4) 电介质 (40 × 40 × 1.6) mm ³上设计和开发的。所提出的 MIMO 天线利用模式分集技术在紧密间隔的辐射器之间获得所需的隔离。模拟和实测结果表明 | 小号₁₁| 建议的灯柱形 MIMO 天线阵列 < -10 dB，可确保在三个频段（即 (2.27–2.42)、(3.38–3.62) 和 (4.5–6.23) GHz）下运行，这三个频段是分别是 WiBro、蓝牙、WiMAX 和 WLAN/WiMAX。对于所提出的 MIMO 天线，在工作频带中观察到 5.1 dBi 的峰值辐射增益以及接近 92% 的最大辐射效率。在所有三个工作频段中都观察到天线元件之间的最小隔离度为 -18 dB，这是提高性能以实现高数据传输速率所必需的。性能关键的分集特性，例如分集增益 (DG)、包络相关系数 (ECC)、总有源反射系数 (TARC)、平均有效增益 (MEG)、计算了所提出的紧凑型灯柱形 MIMO 天线的信道容量 (CC) 和信道容量 (CC)，发现相关系数 <0.001，具有更高的分集增益 > 9.95 dB，并在各自的工作频段内实现了更好的 CCL < 0.4 bits/s/Hz . 有了这些结果，所提出的三角形灯柱形 MIMO 阵列适用于高数据速率应用，这是 5G 及以后网络的主要关注点之一。

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A tri-band triangular lamp post shaped quad port MIMO antenna

In this article, a novel and compact multiband quad port asymmetric coplanar strip-fed triangular lamp post shaped printed multiple-input and multiple-output (MIMO) antenna has been presented. The proposed MIMO antenna is designed and developed on a FR-4 (ε_r = 4.4) dielectric (40 × 40 × 1.6) mm³. The proposed MIMO antenna utilizes the pattern diversity technique to obtain the desired isolation among closely spaced radiators. Simulated and measured results indicate that |S₁₁| of proposed lamp post shaped MIMO antenna array < −10 dB, that assures the operation in three frequency bands, namely, (2.27–2.42), (3.38–3.62), and (4.5–6.23) GHz, which are the operating bands of WiBro, Bluetooth, WiMAX, and WLAN/WiMAX, respectively. A peak radiation gain of 5.1 dBi is observed alongside with a maximal radiation efficiency close to 92% in operating band for the proposed MIMO antenna. A minimal isolation of −18 dB between the antenna elements has been observed in all three operating bands, which is necessary for improved performance to achieve high data transfer rates. Performance critical diversity characteristics such as diversity gain (DG), envelope correlation coefficient (ECC), total active reflection coefficient (TARC), mean effective gain (MEG), and channel capacity (CC) of the compact proposed lamp post shaped MIMO antenna have been calculated and found that the correlation coefficient was <0.001 with higher diversity gain > 9.95 dB and achieved better CCL < 0.4 bits/s/Hz in the respective operating bands. With these results, the proposed triangular lamp post shaped MIMO array is suitable for high data rate applications, which is one of the main concerns of 5G and beyond networks.

更新日期：2022-02-21

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