Appendix III-D

Author: Edmund A. Laport

Resistive and reactive components of the mutual impedance for two identical thin vertical cylindrical radiators one-sixth wavelength high. (After G. H. Brown.)

Chart of radiation patterns from two point sources having equal radiation fields, as functions of spacing and time-phase difference. For identical vertical radiators with equal currents, these are horizontal patterns. The radiating sources have their axis along the horizontal axis of each pattern, and the current in the right hand radiator has a leading time-phase with respect to that in the left-hand radiator. Polarity of fields of lobes is indicated. (After G. H. Brown.)