基片集成同轴线理论及应用研究

With the rapid development of mobile communications, its carrier frequency has been increased to the millimeter-wave band of tens of GHz from hundreds of MHz. Higher frequency communications including millimeter-wave wireless communications has been one of key wireless technologies in the fifth generation (5G) mobile communications. High-quality received signal is required for wireless transmission with higher spectral efficiency and low bit-error rate in the 5G, which leads to the requirements for high-quality antennas and radio-frequency circuits. There is a pair of contradiction between wider signal bandwidth, more carrier frequencies, and higher signal quality and current antenna and radio-frequency technologies. A new microwave transmission line is required to solve this contradiction. In this project, the theory and application of a new microwave transmission line of the substrate integrated coaxial line (SICL) are investigated. The SICL is with the characteristics of ultra-wide band, low loss, low radiation, etc. For the theory of the SICL, characteristic impedance analysis and transmission constant are investigated. And for the application, using the SICL, passive microwave circuits and ultra-high speed digital interconnect structures are implemented. The research results are expected to establish theoretical and technical foundation for the antenna and radio-frequency circuits in the 5G mobile communications.

随着无线移动通信的持续快速发展，工作频率已经从最初的数百兆赫兹向数十千兆赫兹的毫米波频段扩展。包含毫米波在内的高频段通信已成为第五代移动通信（5G）的无线关键技术之一。5G实现高频谱效率和低误码率的传输需要高质量的信号，对射频电路和天线提出更高要求。更宽的信号带宽、更多的载频和更高的信号质量需求与现有射频与天线技术已成为一对矛盾，迫切需要新的微波传输线技术。本项目拟研究一种新型微波传输线基片集成同轴线（Substrate Integrated Coaxial Line, SICL）的基本原理与应用。SICL具有从零频起始到毫米波的超宽带、低损耗、低辐射等优点。针对SICL的基本原理，主要研究特性阻抗分析与传播常数计算方法。对于基片集成同轴线的应用，主要研究采用SICL的无源电路实现技术和采用SICL的超高速数字互连传输结构实现技术。预期研究成果将为5G天线与射频电路提供理论和技术支撑。

随着无线移动通信的持续快速发展，工作频率已经从最初的数百兆赫兹向数十千兆赫兹的毫米波频段扩展。包含毫米波在内的高频段通信已成为第五代移动通信（5G）的无线关键技术之一。5G实现高频谱效率和低误码率的传输需要高质量的信号，对射频电路和天线提出更高要求。更宽的信号带宽、更多的载频和更高的信号质量需求与现有射频与天线技术已成为一对矛盾，迫切需要新的微波传输线技术。本项目研究一种新型微波传输线基片集成同轴线（Substrate Integrated Coaxial Line, SICL）的基本原理与应用。SICL具有从零频起始到毫米波的超宽带、低损耗、低辐射等优点。针对SICL的基本原理，主要研究了特性阻抗分析与传播常数计算方法。对于基片集成同轴线的应用，主要研究采用SICL的无源电路实现技术。预期研究成果将为微波毫米波天线与射频电路提供理论和技术支撑。