Abstract

Herein the modest, miniaturized circularly polarized hexa-band monopole antenna is anticipated for multipurpose application. Using microstrip line feeding the monopole antenna is created by utilizing triple strips, a slotted square loop containing square ground plane and two slotted stubs transversely over the diagonal line on the square loop. The optimization of antenna design parameters is furnished four wide impedance bandwidths (IBW). The measured quad IBW at S₁₁ < –10 dB ranges 4.04–6.61, 7.70–7.81, 10.36–18.93, and 19.57–beyond 20 GHz (after 20 GHz, utilizing the available VNA can not be measured IBW). Whereas the simulated IBWs range 4.21–6.23, 8.55–8.85, 10.32–17.25, and 19.20–beyond 30 GHz. The simulated six axial-ratio bandwidths are of 380, 205, 360, 553, 907 and 290 MHz at the center frequencies f_CP = 5.12, 10.78, 11.97, 14.63, 16.85, 28.58 GHz, correspondingly. The measured results match with the simulations by Ansys Electronics Desktop 2020R1 that are additionally confirmed in CST Microwave Studio. The antenna, presented in this paper, is compact, fabricated with the optimal dimension of 20×20×1.6 mm³, with 38.49% reduction in size. The proposed antenna can be appropriate for application in WLAN and some other wireless communication devices.

中文翻译：

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用于 WLAN 和无线通信应用的圆极化六波段平面缝隙天线

摘要

在此，适度的、小型化的圆极化六波段单极天线有望用于多用途应用。使用微带线馈电单极天线是通过利用三条带、一个包含方形接地平面的开槽方形环路和在方形环路对角线上横向的两个开槽短截线来创建的。天线设计参数的优化提供了四个宽阻抗带宽（IBW）。在S ₁₁处测量的四边形 IBW< –10 dB 范围 4.04–6.61、7.70–7.81、10.36–18.93 和 19.57–超过 20 GHz（在 20 GHz 之后，利用可用的 VNA 无法测量 IBW）。而模拟的 IBW 范围为 4.21–6.23、8.55–8.85、10.32–17.25 和 19.20–超过 30 GHz。在中心频率f _CP = 5.12, 10.78, 11.97, 14.63, 16.85, 28.58 GHz 处，模拟的六个轴向比带宽分别为 380、205、360、553、907 和 290 MHz 。测量结果与 Ansys Electronics Desktop 2020R1 的模拟相匹配，CST Microwave Studio 也证实了这些模拟。本文介绍的天线结构紧凑，最佳尺寸为 20×20×1.6 mm ³，尺寸减小 38.49%。所提出的天线可以适用于WLAN和一些其他无线通信设备中的应用。