Computer Simulation about Temperature Distribution of an EM-Wave Absorber Using a Coupled Analysis Method
Computer Simulation about Temperature Distribution of an EM-Wave Absorber Using a Coupled Analysis Method
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DOI：
10.1093/ietele/e91-c.4.638
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发表时间：
2008-04
期刊：
影响因子：
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通讯作者：
Shinya Watanabe;A. Taniguchi;Kota Saito;O. Hashimoto;Toshifumi Saito;H. Kurihara
中科院分区：
文献类型：
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作者：
Shinya Watanabe;A. Taniguchi;Kota Saito;O. Hashimoto;Toshifumi Saito;H. Kurihara
电磁吸振器在大功率下的应用越来越广泛。该吸波材料可用于高功率雷达的电波暗室性能评估。在这种条件下，由于产生热量或温度变化，预计吸收器的吸收特性会发生变化。本文首先用耦合法研究了λ/4型电磁波吸收体在大功率注入下的温度分布。耦合方法可以计算电磁场和所有的热传输（热传输，热传递和热辐射）。其次，利用吸收体和大功率仪器对功率注入实验进行了检验，通过实验得到了温度分布。最后将计算结果与实测结果进行了比较和讨论。
Utilization of electromagnetic absorbers under high power is increasing. The absorbers are used in anechoic chambers for performance estimation of high power radars. Variation of the absorption characteristics of the absorbers under such conditions is expected, due to the generation of heat or temperature change. In this paper, first the temperature distribution of a λ/4 type EM-wave absorber under high power injection is examined using the coupled method. The coupled method can calculate the electromagnetic field and all of the heat transmissions (heat transport, heat transfer and heat radiation). Next, the power injection experiment is examined using the absorber and high power instruments to get the temperature distribution experimentally. Finally the calculated and measured temperature distributions of the absorber are compared and discussed.