基于电磁诱导透明的毫米波段群时延调控机理及实现研究

The project aims at the international forefront research topic of the theory and technology of electromagnetically induced transparency. Based on the tractions of new applications in “Analog signal processing and communication using the multiplex technology of group delay” and conventionally improved applications of the group delay, different kinds of the electromagnetically induced transparency will be realized. The hybrid structure of the metal rectangular waveguide and substrate are adopted as the basic circuit type with high Q factor. The electromagnetically induced transparencies with single band, multiple bands and wide band will be achieved, respectively, by which the electromagnetically induced transparency theory of characteristic analysis and structural design will be consummated. Combined with the latest theories and techniques of the group delay regulation, detailed mechanism and realization of the group delay with varied performances and wide regulation range will be studied, as well as the quantitative regulation and tunable regulation, by which the relative theory and technology of group delay regulation can be consummated, too. Different samples will be fabricated, and all of the novel theories and methods will be validated by the measurements. In a conclusion, the project study will further enrich and consummate the theory base and technical reserves for new millimeter wave system. It will also provide new theories and technical supports for the conventionally improved applications of the group delay, such as the research on group-delay-line based locked loop, the pulse compression radar, the multi-beam phased antenna array and the group-delay based wireless positioning system with compact size, multiple function and integrated design. The relative theories and methods can also be referred into the electromagnetically induced transparency research in many other regions such as acoustics, optics and mechanics, which results in long-term impact on interaction among multiple disciplines.

本项目旨在国际最前沿的电磁诱导透明理论与技术研究，以“基于群时延复用的模拟信号处理及通信”以及群时延组件的常规改进应用为方向牵引，以矩形波导加载基板这一高Q混合集成结构为基础电路形式，通过对毫米波段电磁诱导透明的单频带、多频带/宽带多形式以及实时可调谐实现，深化电磁诱导透明的特性分析及结构设计理论；结合群时延调控的最新理论与技术，提出基于电磁诱导透明的毫米波段群时延多特性响应、大范围调控、定量调控以及实时调控新机理和新方案，丰富和完善相关理论与技术；研制实验样品，以验证本研究所获得的理论结果；最终为新体制毫米波系统研发提供直接的理论基础和技术储备，并为群时延组件的常规改进应用如延时线锁频环、脉冲压缩雷达、多波束相控天线阵列以及时延无线定位等电路/系统的小型多功能集成化发展提供新的理论和技术支撑。相关研究理论和方法还可以借鉴到声、光、机械等其他领域的电磁诱导透明研究中，促进学科交叉。

电磁诱导透明效应是当今世界电磁学领域研究的前沿，由于电磁诱导透明效应具有许多新奇特性，吸引了各国科学家的广泛研究，其中包括电磁诱导透明效应的特性分析、结构实现以及诸如群时延调控，群时延传感等新颖应用研究。本项目以“基于群时延复用的模拟信号处理及通信”以及群时延组件的常规改进应用为方向牵引，从三个方面进行了研究，一是电磁诱导透明效应的单频带结构实现及其电磁特性，二是电磁诱导透明效应的多模融合式实现，三是基于电磁诱导透明效应的群时延调控方法及应用。具体来讲，我们提出了电磁诱导透明效应的结构实现方法，并对其电磁特性进行了研究。为了更加有效地研究电磁诱导透明效应的电磁特性，我们提出了等效电路的分析方法，对于电磁诱导透明效应的结构设计具有重要的指导意义。另外，提出了基于电磁诱导透明效应的群时延调控方法，并且在此基础上设计出了各种微波器件，包含多模滤波器，群时延调控器，编码标签，传感器等。在理论上，建立了群时延实时调控的理论，拓展了传统群时延调控的实现理论，增加了群时延调控设计的灵活性。在技术上，实现了各种微波器件，为群时延组件的常规改进应用如延时线锁频环、脉冲压缩雷达、多波束相控天线阵列以及时延无线定位等电路/系统的小型多功能集成化发展提供新的理论和技术支撑。相关研究理论和方法还可以借鉴到声、光、机械等其他领域的电磁诱导透明研究中，促进学科交叉。