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空气填充的矩形波导,其截面尺寸为a×b=23mm×10mm,若用探针在其中激励TE10模,信号源的频率f=10.87GHz:
(1)问距探针多远处波导中的电磁波可以被看成是纯TE10波(设高次模振幅衰减到探针处幅值的1/1000时,即可忽略不计);
(2)若所激励的TE10波电场为
,试求波导壁上纵向面电流密度的最大值;
(3)若在波导传输线的终端接一不匹配负载,则传输线上有反射波,试确定电场的两个相邻最小值点之间的距离。
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参考答案:
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参考解析:
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