Accession Number : AD0475204
Title : INVESTIGATIONS OF BROAD BAND FERROMAGNETIC POWER LIMITERS AND EXPANDERS AS DUPLEXING ELEMENTS FOR MICROWAVE SYSTEMS.
Descriptive Note : Quarterly progress rept. no. 1, 1 Jun-31 Aug 65,
Corporate Author : MICROWAVE ELECTRONICS PALO ALTO CA
Personal Author(s) : Peternell, Frank
Report Date : 31 AUG 1965
Pagination or Media Count : 21
Abstract : Methods of attaining broad bandwidth limiters are being investigated. A traveling-wave limiter and multiple-sphere limiter have been tested for limiting over narrow bandwidths. Measurements indicate the helical coupling structure can be used for preliminary expander tests. Utilizing the helical coupling structure, bandwidths for a given sphere are greater than anticipated. A high level insertion loss has been observed in expander tests. It has been attributed to the purity of the YIG spheres employed in the device. (Author)
Descriptors : *LIMITERS), (*DUPLEXERS, FERROMAGNETIC MATERIALS, MICROWAVE FREQUENCY, BROADBAND, RESONATORS, ATTENUATION.
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE