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hai1039:做了一点研究,从物理概念上说,一个无耗的天线(即介质为真空, tan(Sigma)=0, 导体为PEC), 其辐射能量和接受能量应该完全相同(能量守恒),即辐射效率100%.在附件例子中设定不同远场面距离,计算天线效率 [E JQ>?D 0 54% \z7SkZt,GT 0.01 .. (2012-05-25 11:23) fCtPu08{Z
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