A computer model for rapid solutions and visual CRT display of radiation patterns for arbitrarily orientable Yagi-Uda arrays operating over lossy ground or in ship-ocean environments

Abstract

An arbitrarily orientable Yagi-Uda array antenna was modeled, and a computer simulation run to obtain the input impedance, gain pattern and front-to-back ratio of various arrays. The model made provisions for the antenna to be operated over either a lossy ground plane or aboard a ship in seas of specified state. Quick solution turn-around, with CRT display, enabled relatively rapid optimization of numerous arrays. Theory, resultant optimal designs and performances, photographs, and program listing are included.