u/lorentz_217

Electrically short dipole with inductive reactance

Electrically short dipole with inductive reactance

I'm currently working with an electrically short, inverted V dipole (D ~ lambda / 15), and the simulated antenna impedance (shown in differential form below) seems to have several resonances in this low frequency range, meaning that the antenna looks inductive well below half a wavelength. I'm not an antenna expert and am having trouble understanding where that inductive bit may come from given the fact that sub-halfwave dipoles are supposed to be capacitive (perhaps it's something to do with having a bent dipole, but I don't have much intuition on bent dipoles).

https://preview.redd.it/10z0968h0bah1.png?width=1089&format=png&auto=webp&s=b0fafc75adf4fc15f9f8c00aa7983f0a09066cb8

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u/lorentz_217 — 6 days ago