作者saxjesse (saxjesse)
看板phys95
标题[问题] 电磁学/电磁波 小小问题!!请高高手来解惑.送P币
时间Mon Jun 13 09:11:12 2011
Consider a TM(n) mode of propagation along the z
direction in the space between parallel conducting
planes
(a) Show that as the frequency ω approaches the
cutoff frequency the wavelength for that mode
approaches ∞.
(b) Show that the averaged Pointing vector ? =
?u?vg ?z, where ?u? is the average energy density
of EM fields.
希望尽量有详细的计算过程，感谢!!
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