UHF HEAD OF A FERROMAGNETIC RESONANCE SCANNING SPECTROMETER Russian patent published in 2020 - IPC G01R33/05 

FIELD: physics.

SUBSTANCE: high-frequency head of the scanning ferromagnetic resonance spectrometer is designed to measure the absorption spectra of thin-film magnetic samples. Device contains a printed-circuit board, on the upper side of which there is a microwave generator and an amplitude detector, and the lower side is a screen with a measurement hole, above which there is a single-, double- or multiple-turn inductive element of the generator. Measuring hole is a localized source of a high-frequency magnetic field interacting with a local section of the analyzed sample. Scanning is carried out by moving and rotating the sample relative to the measuring hole. Resonant absorption of UHF power by the sample is detected by an amplitude detector from the change in the amplitude of oscillations of the microwave generator during scanning of the constant magnetic field.

EFFECT: technical result of invention is higher sensitivity in frequency range 0,1–1,5 GHz by more than an order, simplification of design, as well as improved manufacturability and adjustment.

3 cl, 3 dwg