DEVICE FOR MEASURING NOISE OF THIN MAGNETIC FILMS IN THE MICROWAVE RANGE Russian patent published in 2023 - IPC G01R33/12 

FIELD: measuring technology.

SUBSTANCE: invention is intended for non-destructive quality control of magnetic films and the study of their high-frequency characteristics by recording the spectral density of noise amplitude of the samples. The device contains a parallel oscillatory circuit, including capacitance and inductance, which is used as an unbalanced strip line. A sample of a thin magnetic film under study is placed inside the line, and the line itself, together with the sample, is placed inside a magnetic system that forms a constant magnetic field. The parallel oscillatory circuit is connected through a capacitor to a microwave generator and directly to an amplitude detector loaded at the input of a low-frequency spectrum analyser.

EFFECT: enabling the possibility of measuring magnetic noise in the microwave range.

1 cl, 4 dwg