CST2011版本自帶計(jì)算的效率的定義疑惑?
請(qǐng)問(wèn)論壇里面有用CST2011以上版本的嗎?想請(qǐng)教1D結(jié)果中自帶計(jì)算的efficiencies中輻射效率和總效率指的是什么?例如我跑的 一個(gè)例子結(jié)果如下:
請(qǐng)問(wèn)這兩個(gè)參數(shù)到底是怎么定義的,為什么輻射效率還大于總效率?
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已經(jīng)查文檔解決了
Radiation efficiency: The antenna radiation efficiency is defined as the ratio of gain to directivity or equally the ratio between the radiated to accepted (input) power of the antenna:
Total efficiency: The total efficiency is defined as the ratio of radiated to stimulated power of the antenna:
Compared to the input power, the stimulated power considers any occurring reflections at the feeding location.
Reflection efficiency: The reflection efficiency is defined as the ratio of input to stimulated power. Note that the input power is the accepted power, i.e. reflected power and power flowing out any port of the simulated structure are not included.