ELECTRIC FIELD-CONTROLLED FUNCTIONAL ELEMENT OF MAGNONICS Russian patent published in 2021 - IPC H01P1/22 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering, in particular to filters. The filter contains a non-magnetic substrate, on the surface of which a structure is formed, which has grooves in the form of a meander, the longitudinal axis of which is perpendicular to the direction of propagation of magnetostatic waves (MSW), covered with a ferromagnetic film of yttrium iron garnet, and microstrip converters for exciting and receiving MSW in a ferromagnetic film, a magnetic source fields. The substrate is made of piezoceramic material and has an extended rectilinear section in the form of a bar and a V-shaped extension at the end, while the transducer for excitation of the MCB is located on the side of the straight section, and two transducers for receiving the MCB are located on the expanded section with the possibility of branching and multiplexing the input signal , and the grooves in the form of a meander are placed on a rectilinear section from the side of the transducer to excite the MSW, the magnetic field of the magnetic field source is oriented parallel to the mentioned longitudinal axes of the grooves, and the electrodes for applying a control electric field to the substrate are placed on the lateral faces of the bar with the possibility of piezomagnetic interaction in the structure for changing the position and creating an additional band gap in the MSW spectrum.

EFFECT: element functionality expanding.

1 cl, 3 dwg