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| View Original: | Coax and Skin depth.png (3526x1101) | |||
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| Keywords: Coax and Skin depth.png en Four stages of skin effect in a coax showing the effect of inductance Color code black overall insulating sheath tan conductor white dielectric green current into the screen blue current coming out of the screen dashed blue lines with arrowheads magnetic flux B The width of the dashed blue lines is intended to show relative strength of the line integral of the B field The four stages A B C and D are unenergized low frequency middle frequency and high frequency respectively There are three regions that may contain B flux the center conductor the dielectric and the outer conductor In stage B current covers the conductors uniformly and there is B flux in all three regions In stage C the flux in the dielectric is unchanged from stage B but some of the cross sections of the center conductor and outer conductor have no current and no flux There is less energy stored in the field for the same current so the inductance is less In stage D the skin effect is fully developed The current is confined to the surface of the conductors The flux in the dielectric is unchanged from stage B but there is no current and no flux in the conductors There is less energy stored for the same current relative to stage C so the inductance less than the inductance of stage C own Constant314 2-17-2011 Coax and Skin Depth svg Cc-zero Transmission lines Electromagnetics | ||||
