MAN-PACK LOOP ANTENNA SYSTEM

摘要

The report summarizes the work accomplished in developing a multiturn loop (MTL) antenna for use with the AN/PRC-77 and AN/PRC-25 manpack transceivers. Design goals were an omnidirectional azimuth pattern with signal levels similar to those of the AT-892/PRC-25 3 foot whip with minimum increase in transceiver shape or size. Patterns of the final MTL configuration selected are shown. The development of an autotuner for use with the MTL is described. The final MTL system including autotuner was built as an add-on system mounted below the transceiver next to the small of the operators back. The attenuation and enhancement effects of the human body close to the radiating element are presented along with conclusions and recommendations for further study.