摘要
提出了以传输波导和同轴谐振腔为基本单元、多腔级联结构的微波幅度均衡器设计思路。分析了该结构的实现原理,并利用HFSS电磁场仿真软件进行了建模计算。据此设计制作了器件,通过调节同轴谐振腔腔长、同轴谐振腔中心导体插入主线波导内的深度以及插入谐振腔中的吸收片深度等调节点对衰减中心频率、衰减幅度、衰减分辨率等指标进行调节。该结构的均衡器具有良好的衰减可调性,测试结果与仿真结果较为吻合。
Microwave amplitude equalizer was designed based on waveguide and parallel connecting of coaxial resonant multi-cavity. The principle was analyzed and electromagnetic modelling and simulating were made using HFSS. By changing such variables as length of the resonant cavity, the inserting depth of center conductor into wavegnide, the inserting depth of the absorbing medium into the resonant cavity, the performance parameters of equalizer including attenuation mid-frequency, attenuation amplitude, and attenuation resolution were adjusted. The equalizer has a good adjustability of attenuation. The testing results are in good accordance with the simulation.
出处
《磁性材料及器件》
CAS
CSCD
2008年第4期47-51,共5页
Journal of Magnetic Materials and Devices
关键词
微波幅度均衡器
波导
同轴谐振腔
设计
仿真
microwave amplitude equalizer
waveguide
coaxial resonant cavity
design
simulation
