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US 8,013,258 B2Granted
Shielding device
AssigneeMediatek Inc.
InventorWen-Chou Wu
Life of this patent
Estimating the term…
Abstract
A shielding device for serving as an electromagnetic shield includes a shield body having a top piece and a plurality of sidewall pieces, and an electromagnetic band-gap (EBG) structure disposed on the top piece of the shield body.
Claims23
A printed circuit board with shielding protection, the printed circuit board comprising:
- a substrate;
- an electronic component on the substrate;
- a shield body having a top piece and a plurality of sidewall pieces defining a covering space for shielding the electronic component on the substrate;
- and
- an electromagnetic band-gap (EBG) structure disposed on the top piece, wherein the EBG structure is arranged to modify resonant modes of the shield body within a range of frequencies.
2 more elements
A printed circuit board with shielding protection, the printed circuit board comprising:
- a substrate;
- an electronic component on the substrate;
- and
- a shielding device comprising;
- a shield body having a top piece and a plurality of sidewall pieces, wherein the top piece and the plurality of sidewall pieces define a covering space for shielding the electronic component on the substrate;
- and
- an electromagnetic band-gap (EBG) structure on the top piece, the EBG structure comprising a periodic pattern capable of preventing propagation of electromagnetic waves within a range of frequencies.
4 more elements
A printed circuit board with shielding protection, the printed circuit board comprising:
- a substrate;
- an RF transceiver on the substrate;
- an RF power amplifier on the substrate;
- and
- a shielding device comprising;
- a shield body having a top piece and a plurality of sidewall pieces, wherein the top piece and the plurality of sidewall pieces define a covering space for shielding the RF transceiver and the RF power amplifier on the substrate;
- and
- an electromagnetic band-gap (EBG) structure on the top piece, the EBG structure comprising a periodic pattern capable of preventing propagation of electromagnetic waves within a range of frequencies.
5 more elements
Dependencies are inferred from the claim text.