ADJUSTABLE MICROWAVE DELAY LINE ON SURFACE MAGNETOSTATIC WAVES

摘要

FIELD: machine building.;SUBSTANCE: invention can be used for processing signals in wideband microwave systems of various purpose. Invention core is that adjustable microwave delay line on magnetostatic waves comprises a dielectric substrate fixed on the basis with parallel and spaced from each other microstrip converters of surface magnetostatic waves (SMSW) arranged on it, a magnetoactive element made in the form of rectangular plate from dielectric with a film of yttrium iron garnet applied on one side, which is connected to the means of displacement relative to the base and faces the SMSW converters with the film, a permanent magnet of magnetic biasing arranged in the area of the magnetoactive element location, herewith at the free surface of the yttrium iron garnet film a periodic structure is formed as a row of grooves of the same size, the means of the magnetoactive element displacement relative to the base is made able to rotate in the plane of the dielectric substrate, herewith the minimum delay time corresponds to the position of the longitudinal axis of the grooves parallel to the SMSW converters axis, and the permanent magnet is located so that the bias field vector lies in the plane of the dielectric substrate and coaxially with the SMSW converters microstrips.;EFFECT: technical result is controlling the delay time of a microwave signal without changing the field and the permanent magnet values.;3 cl, 5 dwg