Accession Number : AD0671790

Title :   PHASE-SHIFT ENHANCEMENT BY MODE-SUPPRESSION TECHNIQUES,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Reuss,M. L. , Jr

Report Date : 30 APR 1968

Pagination or Media Count : 12

Abstract : An X-band study was made of a ferrite phase shifter consisting of a ferrite rod filling the waveguide height and subject to an axial (longitudinal) applied magnetic field. The phase shift produced by this configuration depends on the relative contributions of positive and negative phase-shift 'modes,' each of which dominates in a given section of the ferrite-loaded waveguide. Initial results indicate that the relative phase shift of the plain ferrite-loaded waveguide can be increased by 20% or more through the use of mode suppressors that act predominantly on the negative phase-shift 'mode.' A secondary effect produced by these suppressors is the reduction of the insertion-loss peaks common to this class of phase shifters. (Author)

Descriptors :   (*PHASE SHIFT CIRCUITS, FERRITES), X BAND, MICROWAVES, PHASE SHIFT CIRCUITS, PERFORMANCE(ENGINEERING)

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE