ELECTROMAGNETIC BANDGAP STRUCTURE AND PRINTED CIRCUIT BOARD HAVING THE SAME
First Claim
1. An electromagnetic bandgap structure comprising:
- a conductive layer including a plurality of conductive plates;
a first metal layer disposed under the conductive layer and including a first stitching pattern electrically connected to a first conductive plate of the plurality of conductive plates; and
a second metal layer disposed under the first metal layer and including a second stitching pattern electrically connected to both the first stitching pattern and a second conductive plate of the plurality of conductive plates.
1 Assignment
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Accused Products
Abstract
Disclosed herein are an electromagnetic bandgap structure and a printed circuit board having the same. The bandgap structure includes a conductive layer including a plurality of conductive plates, a first metal layer disposed under the conductive layer and including a first stitching pattern electrically connected to a first conductive plate of the plurality of conductive plates, and a second metal layer disposed under the first metal layer and including a second stitching pattern electrically connected to both the first stitching pattern and a second conductive plate of the plurality of conductive plates. The bandgap to structure includes stitching patterns formed in two layers different from the conductive layer, thus offering a stop-band having a desired bandwidth in a compact structure.
28 Citations
13 Claims
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1. An electromagnetic bandgap structure comprising:
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a conductive layer including a plurality of conductive plates; a first metal layer disposed under the conductive layer and including a first stitching pattern electrically connected to a first conductive plate of the plurality of conductive plates; and a second metal layer disposed under the first metal layer and including a second stitching pattern electrically connected to both the first stitching pattern and a second conductive plate of the plurality of conductive plates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electromagnetic bandgap structure comprising:
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a plurality of conductive plates; and a stitching via including a first stitching pattern disposed under the plurality of conductive plates and electrically connected to a first conductive plate of the plurality of conductive plates, and a second stitching pattern disposed under the first stitching pattern and electrically connected to both the first stitching pattern and a second conductive plate of the plurality of conductive plates, so as to connect the first conductive plate to the second conductive plate.
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12. An electromagnetic bandgap structure comprising:
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a plurality of conductive plates; and a stitching via formed in two metal layers different from the plurality of conductive plates so as to connect the plurality of conductive plates to each other.
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13. A printed circuit board comprising:
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two electronic circuits with different operating frequencies; and an electromagnetic bandgap structure comprising; a plurality of conductive plates; and a stitching via including a first stitching pattern disposed under the plurality of conductive plates and electrically connected to a first conductive plate of the plurality of conductive plates, and a second stitching pattern disposed under the first stitching pattern and electrically connected to both the first stitching pattern and a second conductive plate of the plurality of conductive plates, so as to connect the first conductive plate to the second conductive plate.
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Specification