Nonreciprocal circuit device comprising first and second ferroma

Details Nonreciprocal circuit device comprising first and second ferroma Nonreciprocal circuit device comprising first and second ferroma

1997-11-13

1999-07-20

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

333 242, H01P 1383

Patent

active

059260734

ABSTRACT:
A nonreciprocal circuit device with a simplified manufacturing process and a reduced manufacturing cost, without any increase in the magnetic material loss in a matching circuit. The nonreciprocal circuit device has an integrally fired ferromagnetic body formed of a first ferromagnetic body and a second ferromagnetic body. In the first ferromagnetic body, central conductors are arranged to cross each other in an electrically isolated state. In the second ferromagnetic body having lower saturation magnetization than that of the first ferromagnetic body, capacity electrodes and earth electrodes are formed to form the matching circuit.

REFERENCES:
patent: 4496915 (1985-01-01), Mathew et al.
patent: 5498999 (1996-03-01), Marusawa et al.
patent: 5786736 (1998-07-01), Dejima et al.
Patent Abstracts of Japan, vol. 6, No. 144 (E-122), Aug. 3, 1982 & JP 57 067308 A (Hitachi Metals Ltd), Apr. 23, 1982, abstract.
S. Lenz et al.: "A New Type of Drop-In Microstrip Circulator on Soft Substrate Materials", 15th European Microwave Conference Proceedings, Sep. 9-13, 1985, Paris (FR), pp. 802-807, XP002055954, p. 803, line 2-line 23; figures 4,5.
Webb D C: "Design and Fabrication of Low-Cost Ferrite Circulators" Proceedings of the 25th European Microwave Conference 1995, Bologna, Sep. 4-7, 1995, vol. vol. 2, No. Conf. 25, Sep. 4, 1995, European Microwave Conference Committee, pp. 1191-1200, XP000681870 *p. 1195, left-hand column, line 10-line 22, figure 6.
C.P. Hartwig et al.: "Ferrite Film Circulator" Journal of Applied Physics, vol. 41, No. 3, Mar. 1, 1970, New York, U.S., pp. 1351-1352, XP002055955, whole document.
European Search Report dated Mar. 3, 1998.

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