微波铁氧体器件现状及新一代集成化微波铁氧体器件展望

摘要

阐述了微波铁氧体器件发展现状,指出了微波铁氧体器件当前应该发展的技术方向和亟需突破的关键技术,强调微波铁氧体器件小型化和便于IC集成要求迫在眉睫.为实现微波铁氧体器件的小型化,从微波铁氧体器件基本原理入手,论述了圆极化概念在微波铁氧体器件功能实现和性能优化方面的重要作用,提出了采用绝缘多导体磁性结构实现可满足小型化和便于集成化要求的新一代微波铁氧体器件的基本思路.绝缘多导体磁性器件结构可实现多个TEM波模式的混合传输,利用此构造关于磁化偏置方向的正负圆极化波,从而产生显著的非互易传输和电控特性.TEM模式没有低频截止问题,器件尺寸可大体不受波长比拟规则的限制,通过目前日趋成熟的磁性集成化工艺,可实现小型化和便于IC集成化的新一代微波铁氧体器件.%Development status of microwave ferrite devices was described,and technology development direction to developed and key technology breakthrough were pointed out.It was emphasized that the miniaturation and convenient for IC integration is extremely urgent.For miniaturization of microwave ferrite devices,the important role of circular polarization in their function realization and performance optimization was disscused based the basic fundamental of microwave ferrite devices.Basic ideas was pointed out for the realization of the new generation of microwave ferrite devices satisfying miniaturation and convenient for IC integration with insulating multi-conductor magnetic structure.Hybrid transmission of multipole TEM-mode can be avhieved by insulating multi-conductor magnetic structure,constructing the plus or minus circular polarization wave about magnetic bias direction,resultantly producing remarkable nonreciprocal transmission and electronic control speciality.Low frequency cou-off does not exist for TEM-mode,so the device size is not limited by wavelength match.The new generation of microwave ferrite devices satisfying miniaturation and convenient for IC integration can be realized with increasingly mature magnetic integration process.