Wave transmission lines and networks – Plural channel systems – Nonreciprocal gyromagnetic type
Reexamination Certificate
2011-03-15
2011-03-15
Jones, Stephen E (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Nonreciprocal gyromagnetic type
C333S024200
Reexamination Certificate
active
07907030
ABSTRACT:
The present invention is directed to a circuit assembly that includes an integrated circulator assembly. The circuit assembly has a first substrate, which contains a continuous circuit trace that includes a circulator component from the circulator assembly and at least one electrical component from the circuit assembly. A second substrate is disposed beneath the first substrate and includes a cladding on one surface. The second substrate contains an aperture that accepts a ferrite element, which is axially aligned with the circulator component of the circuit trace. A conductive material is placed across the ferrite element so that it forms a continuous ground plane with the cladding, which is common to the entire circuit trace. The circulator assembly also contains a magnet bonded to the ferrite element. The circulator assembly may also include a yoke disposed below the magnet to shield the circulator from external magnetic fields.
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WIPO PCT Search Report Conducted by and Written Opinion Prepared by The European Patent Office For PCT Application No. PCT/US2005/046164 dated Apr. 20, 2006.
Popelka David
Vaughn Todd
Voss John D.
Elliott, Jr. Robert R.
EMS Technologies Inc.
Jones Stephen E
Troutman Sanders LLP
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