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