Coupling between a centerdriven dipole and parasitic elements of different lengths
Abstract
Formulas are derived as approximate representations for the current and charge distributions along the elements of a linear array of parallel, nonstaggered cylindrical wires of generally unequal length. One element is a centerdriven dipole electromagnetically coupled to the other elements, which are parasitic. These formulas are derived in extension of the wellknown KingWu threeterm theory. As such, they represent an improvementparticularly for the charge distributions, which often very so rapidly near the driving point of the driven element that they cannot be handled by the simpler trigonometric terms of the threeterm theory. As in the threeterm theory, there are only three unknown coefficients to be evaluated for each antenna element. (Modified author abstract)
 Publication:

Physical Sciences Research Papers Air Force Cambridge Research Labs
 Pub Date:
 June 1974
 Bibcode:
 1974psrp.reptR....D
 Keywords:

 Antenna Arrays;
 Coupling Circuits;
 Dipole Antennas;
 Charge Distribution;
 Current Distribution;
 Electromagnetic Pulses;
 Integral Equations;
 Linear Arrays;
 Electronics and Electrical Engineering