Wave transmission lines and networks – Plural channel systems – Nonreciprocal gyromagnetic type
Reexamination Certificate
2008-09-18
2010-06-29
Jones, Stephen E (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Nonreciprocal gyromagnetic type
C333S024200
Reexamination Certificate
active
07746189
ABSTRACT:
A waveguide circulator comprising at least three waveguide arms intersecting at a junction, at least one ferrite element positioned within the junction, an impedance transformer and a recessed transformer. At least a portion of each of the at least three waveguide arms and the junction define a first wall and a second wall that are positioned in an opposing relationship. The impedance transformer is positioned in proximity to the at least one ferrite element and projects from the first wall. The recessed transformer is positioned in proximity to the impedance transformer and is recessed within the first wall.
REFERENCES:
patent: 3466571 (1969-09-01), Staggs et al.
patent: 3866150 (1975-02-01), Thai et al.
patent: 4058780 (1977-11-01), Riblet
patent: 4684908 (1987-08-01), Kuntzmann et al.
patent: 4697158 (1987-09-01), Hoover et al.
patent: 5576670 (1996-11-01), Suzuki et al.
patent: 6359792 (2002-03-01), Genfan
patent: 6407646 (2002-06-01), Johnson
patent: 6518851 (2003-02-01), Kocharyan
patent: 7019706 (2006-03-01), Yoneda et al.
patent: 7176767 (2007-02-01), Kroening
patent: 7230507 (2007-06-01), Kroening
patent: 7242263 (2007-07-01), Kroening
patent: 7259640 (2007-08-01), Brown et al.
patent: 7332982 (2008-02-01), Yun et al.
patent: 2005/0184833 (2005-08-01), Higgins et al.
patent: 2006/0261909 (2006-11-01), Kroening
patent: 2007 005955 (2007-01-01), None
“Design and fabrication of a nonradiative dielectric waveguide circulator,” ieee.org Web page, Nov. 1998.
WR75 junction circulator using 90 degree and 180 degree ridge UEs, Helszajn, Tsounis & Caplin, IEE Proc.-Microw Antennas Propag. vol. 149, No. 2, Apr. 2002.
Caplin Marco
Hocine Mahfoud
Apollo Microwaves, Ltd.
Jones Stephen E
Seyfarth Shaw LLP
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