A note on the theory of log-periodic dipole antenna

Attempts are made to verify Kosta's [1] theory of log-periodic dipole (LPD) antenna, for LPD structures with separation angle (
\psi
) between two halves not equal to zero (
\psi \neq 0\deg
), using Monser's [2] experimental results. It is shown that this theory is quite capable of explaining the electrical properties of the LPD with
\psi \neq 0\deg
.