CIRCULATOR FOR HIGH FREQUENCY AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3230672
PROBLEM TO BE SOLVED: To prevent cracking or chipping in a high frequency circulator due to external stresses in the manufacturing process of the circulator or the assembling process of an MIC(microwave integrated circuit).
SOLUTION: A high frequency circulator is constituted by laminating a laminated circulator body 8 composed of a GND layer 4, a ferrite 2, an insulating layer 6-1, and an SIG circuit 3 upon an insulating substrate 1. Since the stresses applied by external forces are relieved by the substrate 1, cracking or chipping in the ferrite 2, etc., formed in a thin layer can be prevented, In addition, since holes 7 are arranged on the surface forming the SIG circuit 3 at the input-output spots of the circuit 3 for exposing the GND layer 4, the connection between the non-exposed GND layer 4 and an external MIC can be made easier.
September 14, 2001
March 31, 1999
H01P1/387; H01P11/00; H01P1/32; H01P11/00; (IPC1-7): H01P1/387; H01P11/00