射频吸波材料波导测试法装置转换接头的仿真分析
Simulation and Analysis of Waveguide Measurement Adapter for RF
Absorber
摘要 波导法适用于500 MHz~1 GHz频率范围对吸波材料的吸波性能进行测试,具有所需试样数目较少的优点。介绍了波导法的基本原理和实验室设计完成的波导法装置结构,利用高频仿真软件HFSS对装置的关键部分同轴—波导转换接头建模、仿真,根据仿真结果分析了影响接头性能的因素,在分析的基础上优化接头结构设计。
关键词 射频吸波材料;电磁兼容;波导测试法;同轴—波导转换;仿真
Abstract Enclosed-waveguide measurement is used for absorbing performance test of
RF absorber, which is suitable for the frequency ranging from 500 MHz to 1 GHz and
needs much less samples than other methods. The principle and structure of enclosed-
waveguide measurement are presented, and the model of the coaxial -waveguide
adapter is building using the soft HFSS.According to the result of simulation,the factors
which influence the adapter are analyzed, and the structure is optimized.
Keywords RF absorber ; EMC ; waveguide measurement ; coaxial -waveguide
adapter ; simulation
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