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期刊论文 4

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2024 1

2021 2

2004 1

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CCD影像 1

可编程变形 1

可调阶梯阻抗谐振器；液晶；共面波导 1

柔性机器人 1

液晶光阀 1

液晶弹性体 1

目标识别 1

离子弹性体传感器 1

离子电活性弹性体 1

辐射信息 1

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电可调液晶共面波导阶梯阻抗谐振器 Research Articles

樊星叶1,李若舟1,2,严静1,方玉明1,2,于映1,2

《信息与电子工程前沿（英文）》 2021年第22卷第9期页码 1270-1276 doi: 10.1631/FITEE.2000278

摘要：提出一种液晶可调阶梯阻抗谐振器。该谐振器分别在3.367 GHz和7.198 GHz处谐振，这两个频点可通过对液晶层加载电压实现连续调节。

关键词：可调阶梯阻抗谐振器；液晶；共面波导

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基于光谱辐射信息的高温目标图像识别

范学良,程晓舫,许军

《中国工程科学》 2004年第6卷第6期页码 57-62

摘要：通过对这些物理因素进行分析，指出“切割波段”可有效提高信噪比，将高温目标识别出来，并通过液晶光阀予以技术实现。实验结果验证了该方案的可行性及有效性。

关键词： CCD影像目标识别辐射信息液晶光阀

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用于电动致动器和传感器的离子弹性体 Review

Chenrun Feng, C.P. Hemantha Rajapaksha, Antal Jákli

《工程（英文）》 2021年第7卷第5期页码 581-602 doi: 10.1016/j.eng.2021.02.014

摘要：首先，本文综述了三类离子弹性体致动器，即离子聚合物金属复合材料、离子导电聚合物和离子聚合物/碳纳米复合材料，并对未来的致动器进行了展望，如自适应四维（4D）印刷系统和离子液晶弹性体（iLCE）。

关键词：柔性机器人离子电活性弹性体离子弹性体传感器可编程变形液晶弹性体

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基于5 μm厚向列相液晶的高效圆极化相控阵系统的设计、校准和实验验证 Article

Xin Yu Wu,Fengshuo Wan,Hongyuan Feng,Shichao Jin,Chong Guo,Yu Wei,Dunge Liu,Yuqian Yang,Longzhu Cai,Zhi Hao Jiang,Wei Hong

《工程（英文）》 2024年第32卷第1期页码 70-82 doi: 10.1016/j.eng.2023.08.013

摘要：

This paper presents a systematic investigation and demonstration of a K-band circularly polarized liquid-crystal-based phased array (LCPA), including the design, over-the-air (OTA) in-array calibration, and experimental validation. The LCPA contains 16 phase-shifting radiating channels, each consisting of a circularly polarized stacked patch antenna and a liquid-crystal-based phase shifter (LCPS) based on a loaded differential line structure. Thanks to its slow-wave properties, the LCPS exhibits a maximum phase-shifting range of more than 360° with a figure of merit of 78.3°·dB⁻¹ based on a liquid crystal layer with a thickness of only 5 μm. Furthermore, an automatic OTA calibration based on a state ergodic method is proposed, which enables the extraction of the phase–voltage curve of every individual LCPA channel. The proposed LCPA is manufactured and characterized with a total profile of only 1.76 mm, experimentally demonstrating a scanned circularly polarized beam from −40° to +40° with a measured peak gain of 12.5 dBic and a scanning loss of less than 2.5 dB. The bandwidth of the LCPA, which satisfies the requirements of port reflection (|S₁₁|) < −15 dB, an axial ratio (AR) < 3 dB, beam squinting < 3°, and a gain variation < 2.2 dB, spans from 25.5 to 26.0 GHz. The total efficiency is about 34%, which represents a new state of the art. The use of the demonstrated low-profile LCPA to support circularly polarized scanning beams, along with the systematic design and calibration methodology, holds potential promise for a variety of millimeter-wave applications.

关键词： Circularly polarized Liquid crystal Liquid-crystal-based phased array (LCPA) Phase shifter Over-the-air (OTA) calibration