THE DEVELOPMENT OF A MULTITURN LOOP ANTENNA FOR THE AN/PRC-77

摘要

An electrically small antenna element, the multiturn loop, is proposed as a replacement for the three-foot monopole standard on the AN/PRC-77 and AN/PRC-25. The principal objective was to develop a multiturn loop with an omnidirectional pattern and approximately the gain of the standard monopole. Based on past experience with multiturn loop antennas, loop configurations were selected which would minimize the increase in packset size for top, bottom and back-side mounting locations. Patterns were measured for these configurations and compared with patterns of the standard monopole antenna. Parameters were varied (loop size, turn spacing and position on the packset) to optimize the radiation efficiency of the multiturn loop.