YIG microwave oscillator

Details YIG microwave oscillator YIG microwave oscillator

1993-07-28

1995-06-27

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

3332192, 331 96, H01P 1218

Patent

active

054283248

ABSTRACT:
The invention is directed to the structure of a YIG-component. The component comprises a magnetic circuit for generating an homogeneous magnetic field in an air gap of the magnetic circuit and at least one ferrite crystal (81) arranged in the air gap. The magnetic resonance frequency of the ferrite crystal (81) may be controlled dependent on the strength of the homogeneous magnetic field. The magnetic circuit is enclosed in a cavity of a housing (53, 55) arranged for mechanically relieving the magnetic circuit from external influence. The housing (53, 55) may be formed from a material selected at will. The magnetic circuit is arranged in a specifically shaped seat for accurate positioning of the air gap in the housing (53, 55). A foundation formed in the housing (53, 55) is provided for supporting a YIG-unit (75) comprising the ferrite crystal (81) with correct positioning of the ferrite crystal in the air gap.

REFERENCES:
patent: 4484161 (1984-11-01), Barger
patent: 4605911 (1986-08-01), Jin
patent: 4651116 (1987-03-01), Schloemann
patent: 5115209 (1992-05-01), Grace et al.

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