Method of producing a microwave filter comprising a body of gyro

Details Method of producing a microwave filter comprising a body of gyro Method of producing a microwave filter comprising a body of gyro

1977-06-28

1979-01-02

Lanham, C.W.

Metal working

Method of mechanical manufacture

Electrical device making

29602R, 333 73R, H01P 1100

Patent

active

041319877

ABSTRACT:
A method of producing a microwave filter using a YIG sphere whose resonant frequency is a predetermined function of the temperature is disclosed comprising the steps of introducing a reference YIG sphere with a predetermined orientation into the filter structure and changing the external magnetic field until the resonant frequency is adjusted to a predetermined value. Thereafter another YIG sphere is introduced into the resonator structure and rotated until the resonant frequency is again equal to the predetermined value, whereupon the YIG sphere is locked in position.

REFERENCES:
patent: 3426297 (1969-02-01), Cohen
patent: 3504305 (1970-03-01), Cohen
patent: 3648199 (1972-03-01), Buck et al.
patent: 3713210 (1973-01-01), Schellenberg
patent: 3740675 (1973-06-01), Moore et al.
patent: 3801936 (1974-04-01), Roschbaum

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