Electromagnetic bandgap structure and printed circuit board having the same
US8330048B2 · kind B2 · utility
2Cited by
40References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 30, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Dec 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09627
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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; and a metal layer disposed over or under the conductive layer and including a stitching pattern to electrically connect a first conductive plate to a second conductive plate of the plurality of conductive plates. The bandgap structure includes a spiral stitching pattern formed in a metal layer different from the conductive layer, thus offering a stop-band having a desired bandwidth in a compact structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.