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;
wherein the first stitching pattern includes a pattern part having a spiral shape;
wherein the second stitching pattern includes a pattern part having a spiral shape.
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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.
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Citations
8 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; wherein the first stitching pattern includes a pattern part having a spiral shape; wherein the second stitching pattern includes a pattern part having a spiral shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification