Accession Number : ADA131710

Title :   A High Power Octave Bandwidth I/J Band Circulator.

Descriptive Note : Final rept. 2 Sep 80-31 Dec 81.

Corporate Author : RAYTHEON CO NORTHBOROUGH MA SPECIAL MICROWAVE DEVICES OPERATION

PDF Url : ADA131710

Report Date : 31 Dec 1981

Pagination or Media Count : 94

Abstract : This program called for the development of an octave band circulator in 7.5 - 18 GHz. Initially, a four port differential phase shift circulator using nonreciprocal phase shifter in a rectangular waveguide structure was studied. Nonreciprocal phase shifter design with H-plane displayed limitations in terms of broadband performance. With optimum phase shifter geometry, 90% of required bandwidth could be achieved. During the course of the circulator development program analytical studies on dielectric and ferrite loaded double ridge waveguide were performed. Design effort was placed on the frequency range between 8 to 16 GHz. Raytheon circulator design uses two magic tees and two non-identical nonreciprocal phase shifters in standard WRD750D24 double ridge waveguide.

Descriptors :   *Waveguide circulators, *Phase shift circuits, I band, J band, Broadband, Peak power, Computer programming

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE