A Compact and Fast $1 \times 4$ Continuously Steerable Endfire Phased-Array Antenna Based on Liquid Crystal
A Compact and Fast $1 \times 4$ Continuously Steerable Endfire Phased-Array Antenna Based on Liquid Crystal
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基于液晶的紧凑且快速的 1 美元 × 4 美元连续可控端射相控阵天线
DOI：
10.1109/lawp.2021.3096035
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发表时间：
2021
影响因子：
4.2
通讯作者：
H. Maune
中科院分区：
文献类型：
--
作者：
D. Wang;E. Polat;H. Tesmer;R. Jakoby;H. Maune
这封信提出了一个平面端射八木宇田天线相控阵馈电的公司网络。每个辐射单元的相位由基于液晶技术的加载线移相器控制。相移器被弯曲以最小化阵列的尺寸，并且被测量以在28.4 GHz处提供400的最大差分相移和的品质因数。通过高阻抗铬线与直流块一起施加偏置电压，可单独调谐每个移相器。该阵列设计为带移相器的E面全范围扫描。测量结果表明，在0-5 V范围内施加直流偏压，可以使其在− 40 ~ 40之间工作，在图形退化的情况下，可以使其在− 50 ~ 60之间工作。相控阵天线的最大增益测量为4.5 dBi。阵列波束能够在大约1 s内快速转向。
This letter presents a planar endfire Yagi-Uda antenna phased array fed by a corporate network. The phase of each radiating element is controlled by a loaded line phase shifter based on liquid crystal technology. The phase shifters are meandered to minimize the dimension of the array and are measured to provide maximum differential phase shift of 400with a figure-of-merit ofat 28.4 GHz. Each phase shifter is tuned individually by applying bias voltage through high impedance chromium line together with dc blocks. The array is designed for full-range scanning inE-plane withphase shifters. Measurements show that it can be steered from −40to 40by applying dc bias in the range of 0–5 V and from −50to 60with degraded patterns. The maximum gain of the phased array antennas is measured to be 4.5 dBi. The array beam is able to be fast steered within approximately 1 s.