Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Reexamination Certificate
2009-05-15
2011-12-13
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
C333S246000
Reexamination Certificate
active
08076998
ABSTRACT:
An electromagnetic bandgap structure is disclosed. In accordance with an embodiment of the present invention, the electromagnetic bandgap structure that blocks a noise of a certain frequency band can include 4 or more conductive plates, a first stitching via, which electrically connects any two of the conductive plates with each other by having a part of the first stitching via pass through a planar surface that is different from a planar surface of the conductive plates, a second stitching via, which electrically connects another two of the conductive plates with each other by having a part of the second stitching via pass through a planar surface that is different from a planar surface of the conductive plates, and a stitching via chain, which electrically connects the first stitching via and the second stitching via with each other.
REFERENCES:
patent: 6300576 (2001-10-01), Nakamura et al.
Bong Kang-Wook
Kim Han
Park Dae-Hyun
Glenn Kimberly
McDermott Will & Emery LLP
Pascal Robert
Samsung Electro-Mechanics Co. Ltd.
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