Wave transmission lines and networks – Resonators
Patent
1983-10-31
1985-05-07
Gensler, Paul
Wave transmission lines and networks
Resonators
335297, 331 96, H01P 700
Patent
active
045160961
ABSTRACT:
Magnetic circuit for an yttrium-iron garnet crystal (11) resonator for an oscillator, formed by a first cylindrical pole piece (12) comprising a coil (13) provided around an axial core (14) and a second cylindrical pole piece (15) having a flat bottom (16), the yttrium-iron garnet crystal (11) being placed in a gap (17) defined by an end (18) of the axial core (14) and the part (19) of the flat bottom facing the end (18). According to the invention, a circular groove (20) is arranged in the flat bottom (16) around the part (19) facing the end (18) of the axial core (14).
REFERENCES:
patent: 3576503 (1971-04-01), Hanson
patent: 4468643 (1984-08-01), Barger
Gensler Paul
Kraus Robert J.
U.S. Philips Corporation
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