問題詳情

24. Find the spacing d for a parallel-plate waveguide having a dielectric of ε =4ε0, and u= u0 such that 5 GHz is the cutotrfrequency of the dominant mode.
(A) 1
(B)1.5
(C)2
(D) 2.5 cm

參考答案

答案:[無官方正解]
難度:計算中-1
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