Magnet system for tunable YIG oscillator and tunable YIG filter

Details Magnet system for tunable YIG oscillator and tunable YIG filter Magnet system for tunable YIG oscillator and tunable YIG filter

1977-01-28

1978-06-20

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

333 30M, H01F 100

Patent

active

040964612

ABSTRACT:
A magnet system for compensating the frequency difference between the oscillator frequency f.sub.o of a YIG oscillator and the central filter frequency f.sub.mi of a YIG filter to be independent of the oscillator frequency in which two pole-pieces are provided having opposing surfaces, one which has a raised portion, and one of which has a plate of magnetic material having a saturation magnetization smaller than the smallest field strength desired. The raised surface portion of the pole-piece has a height at which the frequency f.sub.o -f.sub.mi is independent of f.sub.o.

REFERENCES:
patent: 3197678 (1965-07-01), Primas
patent: 3290610 (1966-12-01), Auld et al.
patent: 3436587 (1969-04-01), Meyerer
patent: 3668568 (1972-06-01), Morgenthaler
patent: 3789335 (1974-01-01), Delphin et al.
patent: 3864647 (1975-02-01), Bongianni

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