On Fri, Nov 17, 2017 at 02:10 pm, jdow wrote: Ground is simply another circuit element. Those who think otherwise or don't understand that circuit element are doomed to interesting failures. When considering antennas ground becomes a most interesting and LARGE circuit element. Distributed Ls and Cs, even Rs, behave in very strange unexpected ways. A distributed circuit triangle of resistive material over a dielectric over ground can show such interesting things as a 3 dB/octave attenuation slope. Happy nightmares! (When I ran across that analysis I suddenly understood what happens in real transmission lines a little better. After all, they are distributed RLC circuits, too.) {^_-} "Everything is a transmission line" ™
Of course. (Some things are small enough you can sidestep some of the transmission line aspects - for example audio in 10' cables or household power wiring.) An ability to visualize the fields involved can really help.
