Accession Number : AD0658059

Title :   HIGH-POWER, FOUR-PORT JUNCTION CIRCULATOR.

Descriptive Note : Technical rept.,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH N J

Personal Author(s) : Carter,John L. ; Bruscella,John J.

Report Date : MAY 1967

Pagination or Media Count : 18

Abstract : The high-power limitations of four-port junction waveguide circulators are investigated. The optimum geometry and dielectric loading are determined. The major limitation is found to be high-power breakdown. An X-band, four-port junction circulator, capable of operating at a peak power of 150 kW at a center frequency of 9.0 GHz, is described. Isolation is found to be 15 db minimum and insertion loss less than 1 db over a frequency range of 250 MHz. The best material to inhibit ferromagnetic nonlinear effects was found to be YIG, with 45% gadolinium substitution. (Author)

Descriptors :   (*WAVEGUIDE CIRCULATORS, POWER), X BAND, DIELECTRIC PROPERTIES, GADOLINIUM, FERROMAGNETIC MATERIALS, GEOMETRY, CIRCUITS, INSTRUMENTATION

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE