Non-reciprocal circuit element

Details Non-reciprocal circuit element Non-reciprocal circuit element

1996-09-13

1998-07-28

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

333 242, H01P 1383

Patent

active

057867364

ABSTRACT:
A non-reciprocal circuit element which can be miniaturized while still providing a matching capacitance having a large value. A circulator, for example, has central electrodes and a multilayer substrate for forming a matching capacitance. The multilayer substrate is formed by stacking a plurality of dielectric sheets provided with central electrodes or matching capacitive electrodes with each other and integrally firing the same. The matching capacitance is formed by connecting multilayer capacitive parts which are formed by stacking a number of dielectric sheets which are each partially sandwiched by a pair of capacitive electrodes in parallel with each other. An upper surface of the multilayer substrate has a first aperture for receiving a ferrite member and a second aperture for receiving a permanent magnet in positions facing the central electrodes.

REFERENCES:
patent: 3614675 (1971-10-01), Konishi
patent: 4016510 (1977-04-01), Hodges, III et al.
patent: 5017894 (1991-05-01), Naito
patent: 5159294 (1992-10-01), Ishikawa et al.
patent: 5419947 (1995-05-01), Dejima et al.

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