Method for attenuating electromagnetic interference using resonant cavities of dissimilar dimensions
US6429750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/109
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An EMI attenuation device comprising at least two substrates such that the spacing between these substrates is selected to maximize shielding performance at a particular frequency. The device further comprises additional substrates arranged at predetermined distances from the first two substrates to optimize shielding performance. A method also is provided for a multistep, attenuation of impinging EMI, wherein the method also enables see-through and/or hear-through monitoring. Salient features of the method include relatively positioning a plurality of electrically conductive substrates, each of a particular topology, so as to maximize attenuation of the EMI at particular frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.