MINIATURE DEVICE FOR MANGETISATION AND THERMAL STABILISATION OF FERRITE MICROWAVE RESONATORS Russian patent published in 2013 - IPC H01F13/00 

Abstract RU 2492539 C2

FIELD: radio engineering, communication.

SUBSTANCE: dynamic frequency stability increases owing to design features of a magnetic system which includes heat-insulating elements which damp environmental thermal shocks. Frequency stability of the resonator is ensured by selecting thickness of two different magnets which are connected in a magnetic circuit in series to form a heat-insulating gap with an adjustment screw mounted in a hole in a magnetic shield. The adjustment screw is used only for tuning the resonator to a given thermal stabilisation frequency. Further frequency tuning is carried out using an electric control coil mounted in the lateral gap of permanent magnets. Temperature stability of the resonator frequency is maintained in the entire range of electrical adjustment. The design of the device enables accommodation in the working gap of a ferrite resonator together with the wafer of the microstrip integrated circuit of the electric device. The magnetic shield further operates as the housing of the electric device.

EFFECT: high dynamic stability of the resonator frequency during sharp changes in ambient temperature and miniaturisation of the functional microwave device.

3 cl, 5 dwg

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RU 2 492 539 C2

Authors

Tikhonov Vladimir Vasil'Evich

Nikitov Sergej Apollonovich

Litvinenko Artem Nikolaevich

Dates

2013-09-10Published

2011-10-26Filed