The Utilization of Broadband Antennas in Military Tactical Communications Nets.

摘要

This thesis investigates the characteristics of current and developmental broadband antennas used with low and medium power, frequency modulated radio equipment operating in the 30-76 MHz frequency range in military tactical voice radio communication nets. The radio communication net structure of the Airborne and Airmobile Infantry combat units of the Airborne and Air Assault Divisions are used to display data on density of equipment, typical communications ranges, and problems encountered by tactical communications-electronics personnel in providing reliable, secure, responsive, and flexible radio communications within the battle area. Data for the study were assembled from current military communications-electronics and electronic warfare training literature, military communications engineering references, standard electrical engineering textbooks on antenna analysis and design, research and development technical reports submitted to and by the communications-electronics research and development agencies of the United States Army and Marine Corps, and equipment specification sheets and test reports obtained from various manufacturers of military communications-electronics equipment. The results of this study, combined with field testing of various items of radio and antenna equipment conducted at military installations throughout the United States and West Germany, show that use of wideband omnidirectional and, particularly, wideband directional antennas can enhance both the communications reliability and flexibility of combat units, and at the same time provide a much greater degree of communications security and defense against enemy electronic countermeasures.