Attached is a plot of the equipotential lines in the case of a pole with some probe (quite a big cylinder in this case) above it. In contrast to my earlier picture, this one is not a hand-drawn sketc
Yes, of course that's correct. I should have written that with a fiber optic cable instead of the coaxial cable, all circuit elements are coupled to the field at _almost_ the same place, and thus are
I think these results already make a lot of sense. Without ground, your antenna is a short dipole, measuring the potential difference between two points about a meter besides (horizontal) or above (v
Hello all, I tend to think about the mini-whip on LF and MF in terms of an (almost) static electric field. Then it essentially measures the electric field's _potential difference_ between a point som
Actually, I meant the real height above ground, multiplied by the free-space field strength. But of course, you are right that what the device responds to, is the field between the probe and the near
I'm pretty sure it won't work. The reason is that then the entire amplifier circuit, with everything which is electrically connected to it, is at essentially one place up the pole. All parts of that
It is physically impossible that an antenna has no polarization. Let me explain why, by describing a thought-experiment. Suppose you would have such an antenna which really has no polarization at all
