Wave transmission lines and networks – Plural channel systems – Nonreciprocal gyromagnetic type
Reexamination Certificate
2007-02-13
2007-02-13
Jones, Stephen E. (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Nonreciprocal gyromagnetic type
C333S024200
Reexamination Certificate
active
11391379
ABSTRACT:
An improved multi-junction waveguide circulator that eliminates the transitions to dielectric transformers and air-filled waveguides between ferrite elements is described. The waveguide circulator in accordance with the invention can be implemented in variations from a minimum of two ferrite circulator elements joined to one another to any number of conjoined ferrite elements as required to achieve the desired isolation performance or to create a switch matrix with any combination of input and output ports. The waveguide circulator in accordance with the invention eliminates the transitions between adjacent ferrite elements and thus reduces losses, component size, and mass.
REFERENCES:
patent: 3339158 (1967-08-01), Passaro
patent: 3341789 (1967-09-01), Goodman et al.
EMS Technologies Inc.
Hogan & Hartson LLP
Jones Stephen E.
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