Methods and apparatus for EMI shielding

Details Methods and apparatus for EMI shielding Methods and apparatus for EMI shielding

2011-07-05

2011-07-05

Ngo, Hung V (Department: 2835)

Electricity: conductors and insulators

Anti-inductive structures

Shielded

C174S383000, C454S184000, C361S816000

Reissue Patent

active

RE042512

ABSTRACT:
Disclosed are methods and apparatus for improving the resiliency and airflow through a honeycomb air vent filter while providing EMI shielding. In one embodiment, the honeycomb can be manufactured from a dielectric (e.g., plastic) substrate to provide improved resistance to deformation as compared to conventional aluminum honeycomb. The dielectric honeycomb substrate is metallized to provide EMI shielding capability. The metallized honeycomb substrate is cut slightly oversize to fit an opening in an electronic enclosure, which results in elastic deformation of resilient perimeter spring fingers that are used to hold the metallized dielectric honeycomb in place and provide electrical conductivity between the metallized dielectric substrate and the enclosure, thereby eliminating the use of a frame. In another embodiment, additional conductive layers can be added to the metallized dielectric honeycomb. In yet another embodiment, the metallized dielectric honeycomb substrate can be utilized in a framed configuration to provide improved durability.

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