Non-reciprocal circuit element having a magnetic member integral

Details Non-reciprocal circuit element having a magnetic member integral Non-reciprocal circuit element having a magnetic member integral

1996-11-26

1998-04-28

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

333 242, H01P 1383

Patent

active

057450153

ABSTRACT:
A non-reciprocal circuit element of reduced weight and manufactured at a lower cost without deteriorating the parallelism and the magnetic field distribution of a unidirectional magnetic field. The non-reciprocal circuit element may be a circulator having a ferrite member having a center electrode section in which a plurality of electrode lines which function as inductance components are disposed so as to intersect each other, forming a predetermined angle therebetween while being electrically insulated from each other. In this circulator, a magnetic member made of a magnetic material having a permeability higher than that of the ferrite member is formed integrally with a lower surface of the ferrite member. The ferrite member also has matching capacitance electrodes connected to input/output ports of the electrode lines to function as capacitance components. The center electrode section and the matching capacitance electrodes are incorporated in the ferrite member. A permanent magnet is also provided to apply a unidirectional magnetic field to an intersection portion of the center electrode section of the ferrite member.

REFERENCES:
patent: 4789844 (1988-12-01), Schloemann
patent: 5379004 (1995-01-01), Marusawa et al.

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