Low-profile circulator

Details Low-profile circulator Low-profile circulator

2006-07-18

2006-07-18

Jones, Stephen E. (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

C333S024200

Reexamination Certificate

active

07078983

ABSTRACT:
A circulator comprises first and second couplers. The first and second couplers are coupled by first and second transmission lines. First and second magnetic fields are provided crossing the first and second transmission lines, respectively. In an exemplary embodiment, the magnetic fields are substantially parallel with and within a plane defined by the first and second transmission lines.

REFERENCES:
patent: 3270298 (1966-08-01), Seidel
patent: 3309698 (1967-03-01), Baldock
patent: 3646486 (1972-02-01), Wen
patent: 3729692 (1973-04-01), Tanaka et al.
Lang, J., “Interdigitated Stripline Quadrature Hybrid,” IEEE Transactions on Microwave Theory and Techniques, Dec. 1969, pp. 1150-1151.
Chen-Yu Chi and Gabriel M. Rebeiz, “Design of Lange-Couplers and Single-Sideband Mixers Using Micromachining Techniques,” IEEE Transactions on Microwave Theory and Techniques, vol. 45, No. 2, Feb. 1997, pp. 291-294.

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