高性能X波段铁氧体隔离器设计  

Design of a X-band Ferrite Isolator with High Performance

作　　者：王振力[1] 郭庆功[1] 

机构地区：[1]四川大学电子信息学院,四川成都610065

出　　处：《无线电工程》2016年第6期61-64,共4页Radio Engineering

摘　　要：铁氧体隔离器在微波系统中具有重要作用。基于YIG铁氧体基片,采用低场工作模式和双Y圆盘中心导体结构,设计了一款X波段隔离器,通过三维电磁仿真软件HFSS仿真分析了不同参数对隔离器性能的影响并进行了优化,进行加工测试。测试结果表明,在9.2~9.8 GHz的频率范围内,电压驻波比（VSWR）〈1.1 d B,插入损耗〈0.5 d B,隔离度〉23d B,所设计的隔离器达到了较高的性能指标,符合微波射频电路高频段、高性能的要求。Ferrite isolator plays an important role in microwave system.Based on a YIG ferrite film,a X-band Double-Y Junction isolator was proposed and simulated to analyze the influence of different parameters on the isolator performance and perform the optimization using HFSS software.Finally,the isolator was fabricated and measured. With the result in 9. 2 ~ 9. 8 GHz,the isolation is greater than 23 d B,insertion loss less than 0.5 d B,voltage standing wave ratio（ VSWR） less than 1.1 d B.The design achieves high performance indicators and complies with the requirements of high frequency and high performance of microwave RF circuit.

关 键 词：铁氧体 X波段 隔离器 双Y圆结 

分 类 号：TN627[电子电信—电路与系统]