Accession Number : AD0661641

Title :   INVESTIGATIONS OF BROADBAND FERROMAGNETIC POWER LIMITERS AND EXPANDERS AS DUPLEXING ELEMENTS FOR MICROWAVE SYSTEMS.

Descriptive Note : Quarterly rept. no. 5, 1 Jun-31 Aug 67,

Corporate Author : MICROWAVE ELECTRONICS PALO ALTO CALIF

Personal Author(s) : Young,Peter ; Olson,F. A.

Report Date : NOV 1967

Pagination or Media Count : 34

Abstract : Efficient broadband coupling to the lowest order surface magnetostatic mode in a transversely magnetized YIG slab was demonstrated experimentally. The coupling length for a polycrystalline YIG slab was determined. A helix expander was fabricated and tested. Maximum high level loss of not more than 1.5 db was achieved. Subsidiary resonance limiting was observed in a helix structure at C-band frequencies. Threshold is in the 100-mW range. (Author)

Descriptors :   (*LIMITERS, BROADBAND), (*MAGNETOSTRICTIVE ELEMENTS, BROADBAND), FERROMAGNETIC MATERIALS, MICROWAVE EQUIPMENT, DUPLEXERS, HELIXES, YTTRIUM COMPOUNDS, IRON COMPOUNDS, GARNET, C BAND, MAGNETOSTRICTION, FERRITES

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE