基于平面型复合左/右手（CRLH）结构的高温超导微波无源器件研究

With wide spread application of metamaterial and increasing maturity of high temperature superconductor (HTS) technology, research of HTS microwave circuit based on composite right/left-handed (CRLH) structures has a great opportunity to make further progress. Towards metamaterial with excellent properties, ultra-small scale and re-configurability, exploring new concept in microwave circuit design with superconductor production process, this project aims to the theoretical analysis on construction mechanism of planar HTS CRLH structure, nonlinear transmission line theory and physical characteristics of reconfigurable left-handed structure. It will also investigate important topics such as modeling method for planar HTS CRLH transmission line, loss theory and its reduction technique, optimization of power capacity characteristics and establish new interconnecting methods for multiple resonance-units of planar HTS CRLH structure. Based on the previous study, HTS microwave passive components with high performance, compact size and re-configurability characteristic will be made. Furthermore, theoretical analysis and experimental methods will be provided for the application in extremely small-scale microwave transceiver module, ultra-low energy consumption wireless communication and super-high sensitivity deep space exploration.

随着Metamaterial材料广泛应用和高温超导技术日趋成熟，基于复合左/右手（CRLH）结构的高温超导微波电路研究迎来了一个新的发展机遇。面向优异性能、极小尺寸和可重构的Metamaterial材料研究，探索采用超导平面工艺进行微波电路设计的新思路，本项目将致力于高温超导CRLH结构的平面拓扑构造机理、非线性传输线理论及其可重构的左手物理特征等理论分析，解决平面型高温超导CRLH结构的电路建模方法、传播损耗理论和降耗方法、功率容量分布优化等重要问题，建立平面型高温超导CRLH结构多级谐振单元的互连新方法。在此基础上，研制出高性能、小型化、可重构的高温超导微波无源器件，并为其在极小尺寸微波收发装置、超低功耗无线通信和极高灵敏度深空探测等领域应用，提供科学的理论依据、分析方法和实验途径。

本项目围绕平面型高温超导CRLH结构的构造机理、传输线理论、电磁波传播特性、左手物理特征等理论研究，在国家自然科学基金的支持下，通过四年的持续研究，本项目开展了诸多创新工作，取得了较为丰富的成果。不仅完成平面型高温超导CRLH结构的传输线理论、传播特性以及非线性特性的研究，确立了非线性特性下动态电感和动态电阻对平面型CRLH结构的左手传播特性的影响的关系。而且完成了基于平面型的高温超导CRLH结构的小型化、低损耗的滤波器以及多工器设计，并对其损耗理论、功率承载能力以及高效互联方法进行了研究。自项目开展以来，在国际学术杂志上发表SCI论文20篇，在国际学术会议上发表论文10篇；以本项目的研究成果获得授权发明专利8项。

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