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首页> 外文期刊>IEEE Transactions on Antennas and Propagation >Demonstration of a Reflectarray With Near-Field Amplitude and Phase Constraints as Compact Antenna Test Range Probe for 5G New Radio Devices
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Demonstration of a Reflectarray With Near-Field Amplitude and Phase Constraints as Compact Antenna Test Range Probe for 5G New Radio Devices

机译：具有近场幅度和相位约束的反射阵列的演示作为5G新无线电设备的紧凑天线测试范围探头

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摘要

In this work, a reflectarray is proposed to be used as a probe of reduced and portable compact-antenna-test range for 5G new radio devices. The reflectarray works at 28 GHz and produces a quiet zone in the near-field region of the antenna. Considering that the quiet zone specifications are established in terms of the amplitude and phase ripple, a synthesis technique is presented to optimize the near field in the Fresnel region of a reflectarray with amplitude and phase constraints. The proposed technique is based on the generalized intersection approach using the Levenberg-Marquardt algorithm as its backward projector obtaining a novel technique in near-field synthesis. This technique is applied to improve the quiet zone radiated by the proposed reflectarray, overcoming the amplitude and phase limitations of the initial configuration. The solution provided by this process is used to design and manufacture a reflectarray based on a three-parallel-dipole cell. Finally, the prototype is measured in a near-field planar range facility in order to evaluate the radiated quiet zone and demonstrate the methodology. The prototype satisfies the tight requirements in amplitude and phase, obtaining promising results.
机译：在这项工作中，建议将反射阵列用作5G新型无线电设备的减少和便携式紧凑型天线 - 测试范围的探头。反射阵列在28 GHz工作，并在天线的近场区域产生一个安静的区域。考虑到在幅度和相位纹波方面建立了安静区域规范，提出了一种合成技术，以利用幅度和相约束优化反射阵列的菲涅耳区域中的近场。所提出的技术基于使用Levenberg-Marquardt算法作为其后向投影仪获得近场合成中的新技术的广义交叉方法。应用该技术以改善所提出的反射阵列辐射的静音区域，克服初始配置的幅度和相位限制。通过该方法提供的解决方案用于基于三平行偶极电池来设计和制造反射阵列。最后，在近场平面范围设施中测量原型，以便评估辐射的安静区域并证明该方法。原型满足幅度和阶段的严格要求，获得有希望的结果。

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