The Radiation Resistance of Beam Antennas

In this paper a new method proposed by Brillouin for the calculation of radiation resistance is applied to several types of beam antennas. New formulas are deduced and some interesting results are obtained showing the distribution of the radiated power among the different wires of beam antennas and giving the numerical value of the radiation resistance in various cases (synphase antenna, antiphase antenna, Marconi three-stage antenna). The radiation resistance in the presence of a perfect conducting plane is also considered. A table of values of the components of radiation resistance is added to the paper for practical use.