A theoretical analysis of the multi-element end-fire array with particular reference to the Yagi-Uda antenna

Self and mutual impedances of a multi-element antenna system are discussed, and a method of approximation for these impedances is shown. The impedances derived by this method are applied to a theoretical analysis of the multi-element parasitic end-fire array. Various characteristics of the Yagi-Uda antenna computed by the theory are given in charts, and a procedure for designing the Yagi-Uda antenna is shown. Comparisons between the theory and experimental results are also discussed.