New measurement method of RF absorber characteristics by large square coaxial line
New measurement method of RF absorber characteristics by large square coaxial line
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大方同轴线射频吸收体特性测量新方法
DOI：
10.1109/isemc.1993.473702
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Kazuo Shimada
中科院分区：
文献类型：
--
作者：
Shigerii Takeya;Kazuo Shimada
为了精确评估射频吸收器，特别是在100兆赫以下的频率，已经开发了一条大的方形同轴线。同轴电缆不要求射频吸收器测试样品底部有金属反射器，因此既可以测量透射波，也可以测量反射波。通过对每一种吸波材料的实测数据，计算出了级联吸波的特性。使用同轴电缆，可以精确地评估由于铁氧体吸收器气隙影响而导致的性能下降
A large square coaxial line has been developed for precise evaluation of RF absorbers, especially at frequencies below 100 MHz. The coax requires no metal reflector at the bottom of RF absorber test sample, so that a transmitted wave as well as a reflected wave can be measured. The characteristics of cascaded absorbers are calculated from measured data on each absorbing material. With the coax, a precise evaluation of the performance degradation due to the air gap influence of the ferrite absorber can be made.<<ETX>>