Nonreciprocal circuit device and composite electronic component

Details Nonreciprocal circuit device and composite electronic component Nonreciprocal circuit device and composite electronic component

1998-03-20

1999-08-31

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

333 242, H01P 1383, H01P 136

Patent

active

059458879

ABSTRACT:
A nonreciprocal circuit device that avoids the problems of increased loss and narrowed frequency bandwidth when used with a low power supply voltage. An isolator (nonreciprocal circuit device) has a plurality of center electrodes (2 through 4) disposed so as to intersect and having a ferrite (5) disposed in alignment with the point of intersection, to which a DC magnetic field HDC is applied. An impedance conversion circuit (6) is added to the port of any one of center electrodes (2 through 4), setting the input impedance Zi to 2<Zi<12.5 ohms.

REFERENCES:
patent: 3676803 (1972-07-01), Simmons
patent: 3820041 (1974-06-01), Gewartowski et al.
patent: 3836874 (1974-09-01), Maeda et al.
patent: 3890582 (1975-06-01), Jeong
patent: 4724399 (1988-02-01), Akinaga

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