Implementation of a 2-D Reconfigurable Fresnel-Zone-Plate Antenna
Implementation of a 2-D Reconfigurable Fresnel-Zone-Plate Antenna
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二维可重构菲涅耳波带板天线的实现
DOI：
10.1109/tap.2020.3008066
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发表时间：
2021-01-01
影响因子：
5.7
通讯作者：
Ran, Lixin
中科院分区：
文献类型：
--
作者：
Ma, Chao;Li, Huan;Ran, Lixin
结合有源频率选择表面（FSS）提供的相位可调谐性和传统一维菲涅尔波带板（FZP）天线中使用的波束控制方案的优点，本文报道了一种仅需180°相位可调谐的二维波束控制FZP天线。与发射阵列相比，在基片层数减少一半的情况下，采用相位补偿策略提高了天线性能。为了验证所提出的方法，天线罩实现的基础上，主动，可重构的频率选择表面的设计，仿真和实验实现。采用简单的三层结构，实现的FZP天线工作在5至6.3 GHz的超宽带宽范围内，对应于21%的相对带宽。增益高达19.3 dBi，扫描范围在水平和垂直平面均达到±45°。这种具有成本效益，结构简单的天线可以潜在地用于各种RF和微波应用。
Combining the advantages of the phase tunability provided by active frequency selective surfaces (FSSs) and the beam-steering scheme used in conventional 1-D Fresnel-zone-plate (FZP) antennas, we report in this communication a 2-D beam-steering FZP antenna that needs only 180° phase tunability. Compared with transmit arrays, while the substrate layers are reduced by a half, a phase compensation strategy is used to enhance antenna specifications. To verify the proposed approach, a radome implemented based on an active, reconfigurable FSS was designed, simulated, and experimentally implemented. With a simple three-layer structure, the implemented FZP antenna works within an ultrawide bandwidth ranging from 5 to 6.3 GHz, corresponding to a 21% relative bandwidth. With a gain up to 19.3 dBi, the scanning range reaches ±45° in both horizontal and vertical planes. This cost-effective, simple-structured antenna can be potentially used in diverse RF and microwave applications.