Method of manufacturing microwave circulator

Details Method of manufacturing microwave circulator Method of manufacturing microwave circulator

1995-03-21

1997-03-18

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156145, 264 61, 333 11, 333 241, B32B 3112, B32B 3126, H01P 1387

Patent

active

056118783

ABSTRACT:
A method of manufacturing a circulator includes the steps of forming, on at least one sheet (41, 42) of an insulating ferromagnetic material, dummy inner conductors (44a, 44b, 44c, 45a, 45b, 45e) made of a material which is thermally decomposed at a temperature equal to or less than a sintering completion temperature of the insulating ferromagnetic material, laminating a plurality of the sheets (40, 41, 42) of the insulating ferromagnetic material so that at least one insulating ferromagnetic material sheet (40, 41) covers the dummy inner conductors formed on the sheets (41, 42), firing the laminated insulating ferromagnetic material sheets (40, 41, 42) to form an insulating ferromagnetic material body (46) in a single continuous body and to form ducts (47) for inner conductors at portions occupied by the dummy inner conductors, injecting with pressure conductive paste into the ducts (47) in the insulating ferromagnetic material body (46), and firing the insulating ferromagnetic material body (46) to form the inner conductors (48) in the insulating ferromagnetic body (46).

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