Accession Number : AD0617693

Title :   IMPROVED DELAY LINE TECHNIQUES STUDY.

Descriptive Note : Final rept.

Corporate Author : HUGHES AIRCRAFT CO FULLERTON CALIF

Report Date : MAY 1965

Pagination or Media Count : 84

Abstract : Dispersive delay lines are a very stable and reliable pulse compression technique. As a result of increased requirements placed on pulse compression systems such as bandwidth, and time-bandwidth products, dispersive delay line techniques must be improved. Improved dispersive delay line technology as applied to pulse compression systems was investigated. Higher frequency of operation, broader bandwidth and greater ease of fabrication were the primary areas of interest. Two dispersive delay line configurations were investigated. The first configuration was a technique based on the dispersive characteristic which results from elastic waves propagating in thin metal strips, and the second configuration was based on slow wave propagation in a yttrium iron garnet. An investigation was undertaken to determine a highly efficient transducer to be used in conjunction with the dispersive delay lines. Vacuum deposited cadmium sulfide transducers proved to be most desirable and successful in constructing delay lines of broad instantaneous bandwidth. (Author)

Descriptors :   (*DELAY LINES, PULSE COMPRESSION), (*PULSE COMPRESSION, DELAY LINES), BANDWIDTH, TRANSDUCERS, HIGH FREQUENCY, FILMS, YTTRIUM, IRON, GARNET, CADMIUM COMPOUNDS, SULFIDES

Distribution Statement : APPROVED FOR PUBLIC RELEASE