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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Miniaturized reconfigurable tri-polarization metantenna based on characteristic mode analysis with high-aperture efficiency
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Miniaturized reconfigurable tri-polarization metantenna based on characteristic mode analysis with high-aperture efficiency

机译：基于特征模式分析的小型化可重构三极化融质量，高光圈效率

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摘要

This article presents a miniaturized reconfigurable tri-polarization metantenna with compact size of 0.58 λ_0 × 0.58 λ_0 × 0.04 λ_0 (λ_0 is the free space wavelength referring to the antenna center frequency). Metantenna means the metasurface is directly used as the antenna radiator aperture instead of an accessory. The metantenna is formed by miniaturized windmill like units, which is evolved from square patch units based on characteristic mode analysis, and 46% size reduction is achieved. Two PIN diodes are introduced into the feeding microstrip for switching among tri-polarization. The measured -10 dB impedance bandwidths are 24.6% (3.24-4.15 GHz) and 24.1% (3.26-4.05 GHz) for circular polarization (CP) and linear polarization (LP), respectively. The measured overlapped 3 dB axial ratio (AR) bandwidth is 15% (3.4-3.95 GHz). The measured peak gains are 5.15 dBi, 5.21 dBic, and 5.25 dBic for LP, left hand (LH) CP and right hand (RH) CP, respectively. The aperture efficiency is 77.3%, 78.5%, and 79.1% for LP, LHCP, and RHCP, respectively. The measured AR beamwidth (BW) of LHCP in XZ-plane and YZ-plane is 192° and 174°, respectively, the measured ARBW of RHCP in XZ-plane and YZ-plane is 201° and 166°, respectively. The developed metantenna has the following advantages: broadband 3 dB AR bandwidth, wide ARBW>166°, least PIN number (tri-polarization with 2 PIN), and high-aperture efficiency.
机译：本文提出了一种小型化可重构的三极化型融质量，具有0.58λ_0×0.58λ_0×0.04λ_0（λ_0是指天线中心频率的自由空间波长）。 Metantenna意味着元表面直接用作天线散热器孔而不是附件。 MetanteNNA通过小型化的风车，如单位的单位形成，其基于特征模式分析从方形贴片单元演变，实现了46％的尺寸减小。将两个引脚二极管引入进给微带中，以在三极化之间切换。测量的-10 dB阻抗带宽分别为24.6％（3.24-4.15GHz）和24.1％（3.26-4.05GHz），分别用于圆极化（CP）和线性偏振（LP）。测量的重叠的3 dB轴向比（AR）带宽为15％（3.4-3.95GHz）。测量的峰值增益分别为5.15dBi，5.21dbic和LP，左手（LH）CP和右手（RH）CP的5.25dBic。 LP，LHCP和RHCP的光圈效率分别为77.3％，78.5％和79.1％。 LHCP在XZ平面和YZ平面中的测量AR波束宽度（BW）分别为192°和174°，XZ平面和YZ平面中的RHCP的测量ARBW分别为201°和166°。开发的Metantenna具有以下优点：宽带3 DB AR带宽，宽ARBW> 166°，最小销钉（三极化，2针）和高光圈效率。

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