基于忆阻器的可重构射频/微波无源器件研究

Due to the unique properties of the memristors such as nanoscale feature size, less power dissipation and nonvolatility, this project is to research on the memristor-based reconfigurable RF/microwave passive devices with high performance and miniaturized sizes. Firstly, based on study of memristor SPICE circuit model, we focus on the design and optimization of the memristor-RF passive component multiscale device model by using finite-difference time-domain (FDTD) EM simulator integrated with the nonlinear SPICE circuit solver. This device model is the theoretically basic support of experimentally memristor-based reconfigurable RF devices realization. Secondly, according to the results of memristor SPICE circuit model optimization, we design and set up a memristor macro-circuit emulator, whose measured i–v curves provide an important reference for the structure design and fabrication of the memristor. Thus, we can focus on the fabricated procedure and characterization of the nanoscale thin-film memristor. Finally, some memristor-based reconfigurable RF/microwave filters and antennas are experimentally studied based on the abovementioned multiscale device model and measured current-voltage properties of the nanoscale thin-film memristor. The successful implementation of this project will develop a new type of the reconfigurable RF devices, extend the experimental research and application of the memristor in RF and electromagnetic areas, which is of significantly theoretical potential and practical engineering utilization.

由于纳米忆阻器具有体积小、功耗低、非易失记忆性等特点，本项目拟研制基于忆阻器的高性能小型化可重构射频微波无源器件。首先，深入研究忆阻器SPICE电路模型，利用FDTD仿真器和SPICE电路求解器聚焦射频无源器件-纳米忆阻器的多尺度场路协同仿真模型的设计和优化，该模型为基于忆阻器的可重构射频器件的实验实现提供必要的理论支撑依据。其次，根据忆阻器SPICE电路模型优化设计的结果，搭建设计忆阻器宏观电路模拟器，其试验所得的伏安特性数据为纳米忆阻器的结构设计与制备提供参考，从而聚焦于纳米薄膜忆阻器的制备流程和表征。最后，结合器件的多尺度场路协同仿真模型和纳米薄膜忆阻器的电流电压性能实测等结果，研制基于忆阻器的可重构射频微波滤波器、天线等无源器件。该项目的成功实施将为研制新型可重构射频器件奠定必要的工艺技术基础，填补忆阻器在射频电磁领域中的应用实验研究的国际空白，具有重要的理论意义和工程应用价值。

由于纳米忆阻器具有体积小、功耗低、非易失记忆性等特点，本项目研制基于忆阻器的高性能小型化可重构射频微波无源器件。首先对滤波器、功分器、耦合器、吸波器、多工器等射频无源器件以及天线进行深入细致地研究。同时深入研究忆阻器SPICE电路模型，利用FDTD仿真器和SPICE电路求解器聚焦射频无源器件-纳米忆阻器的多尺度场路协同仿真模型的设计和优化，该模型为基于忆阻器的可重构射频器件实现提供必要的理论支撑依据。接着，根据忆阻器SPICE电路模型优化设计的结果，搭建设计忆阻器宏观电路模拟器，其试验所得的伏安特性数据为纳米忆阻器的结构设计与制备提供参考，同时结合器件的多尺度场路协同仿真模型和忆阻器宏观电路模拟器的电流电压性能实测等结果，研制基于忆阻器的可重构射频微波滤波器、天线等无源器件。通过此次项目的研究，共发表37篇国际主流SCI期刊论文，10篇国际会议论文；申请5项发明专利，其中1项发明专利已授权。该项目的实施为研制高性能小型化可重构射频微波无源器件提供一定的思路，具有重要的理论意义和工程应用价值。