mm-Wave Low Insertion Loss SIW Phase Shifter Based on Liquid Metal Technology
mm-Wave Low Insertion Loss SIW Phase Shifter Based on Liquid Metal Technology
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DOI：
10.1109/lmwt.2023.3339200
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发表时间：
2024-02
期刊：
影响因子：
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通讯作者：
Shaker Alkaraki;Zhishu Qu;James R. Kelly
中科院分区：
文献类型：
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作者：
Shaker Alkaraki;Zhishu Qu;James R. Kelly
这封信提出了第一个基于液态金属（LM）的毫米波（mm波）移相器的概念证明，具有非常低的插入损耗（IL）性能。该移相器的相移可达360°，相位分辨率为45°。移相器工作在26 GHz 5G频段，IL性能低于2.1 dB。这使得所提出的移相器在26 GHz时具有174.7°/dB的优异品质因数（FoM）。所提出的移相器有几个优点，包括与基于基片集成波导的馈电网络的毫米波相控阵天线的能力。通过引入由LM形成的通孔来控制移相器的相位。当需要过孔时，用LM填充过孔，而当不再需要过孔时，孔中的LM被清空。所提出的重构方法也将适用于各种不同的可重构毫米波器件。
This letter presents the proof of concept of first liquid metal (LM)-based millimeter-wave (mm-wave) phase shifter that have very low insertion loss (IL) performance. The proposed phase shifter has a phase shift up to 360° with a phase resolution of 45°. The phase shifter operates on 26-GHz 5G band and have IL performance of lower than 2.1 dB. This enables the proposed phase shifters to have an excellent figure of merit (FoM) of 174.7°/dB at 26 GHz. The proposed phase shifter has several advantages including the capability to be integrated with SIW-based feeding network for mm-wave phased array antennas. The phase of the phase shifters is controlled by introducing vias formed of LM. When the via is required, the via hole is filled with LM, and when the via is no longer required, the holes are emptied of LM. The proposed reconfiguration approach will also be applicable within a wide range of different reconfigurable mm-wave devices.