Variational approach to V-dipole antenna analysis

An analysis of the problem of symmetric, centre-driven V-antenna, using the variational method, is given. In deriving the variational expression for impedance the trial function in the form of a functional series with complex coefficients was assumed. The concerte evaluations were performed using two types of functional series: two-term trigonometric series and polynomials of arbitrary order. The method was used for calculating the input impedance and current distribution for a number of representative examples. The numerical results are in very good agreement with the results obtained by the point-matching method. In addition, the variational results for admittances corresponding to the particular case of a V-dipole completely stretched out are compared with available theoretical and experimental data for the straight symmetrical dipole. The agreement was found to be excellent.