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Frequency selective structures for shielding or mitigating EMI within open or closed structures

A frequency-selective, open-structure technology that can be used in magnetic/electric field shielding, semiconductor/solid-state device components, printed circuits, etc., to solve problems such as degradation of important signals, low efficiency of electronic equipment, and inoperability

Active Publication Date: 2015-10-07
LAIRD TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Without adequate shielding, EMI / RFI interference can cause degradation or total loss of vital signals, rendering electronic equipment inefficient or inoperable

Method used

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  • Frequency selective structures for shielding or mitigating EMI within open or closed structures
  • Frequency selective structures for shielding or mitigating EMI within open or closed structures
  • Frequency selective structures for shielding or mitigating EMI within open or closed structures

Examples

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Embodiment approach

[0070] A variety of materials may be used for the conductive members or electrical conductors (eg, 220, 320, 420, 620, 720, 820, etc.) of the exemplary embodiments including the conductive members or electrical conductors. Example materials include metals (eg, copper, nickel / copper, silver, aluminum, etc.), conductive composites, and the like. Some exemplary embodiments include a conductive member or conductor comprising a conductive pressure sensitive adhesive such as that available from Laird Technologies. By way of example only, exemplary embodiments include one or more frequency selective structures having a conductive member made from Laird Technologies' Black Conductive Webbing 86250 Tape, a nickel / Copper metallized fabric. By way of further example, another exemplary embodiment includes one or More frequency selective structures. Another exemplary embodiment includes one or more frequency selective structures comprising conductive aluminum members, elements or patte...

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Abstract

According to various aspects, exemplary embodiments include one or more frequency selective surfaces, which may be used for attenuating, reflecting, and / or redirecting electromagnetic signals. Also disclosed are methods of using one or more frequency selective surfaces for attenuating, reflecting, and / or redirecting electromagnetic signals.

Description

[0001] Cross References to Related Applications [0002] This application is a PCT International Application of U.S. Patent Application No. 13 / 853,248, filed March 29, 2013, and U.S. Patent Application No. 13 / 750,680, filed January 25, 2013, and claims U.S. Patent Application No. .13 / 853,248 and priority of US Patent Application No. 13 / 750,680. The entire disclosure of the above application is incorporated herein by reference. technical field [0003] The present disclosure relates to frequency selective structures (eg, two-dimensional frequency selective structures or surfaces or three-dimensional frequency selective structures or surfaces, etc.) for shielding or mitigating electromagnetic interference (EMI) within open or closed structures. Background technique [0004] This section provides background information related to the present disclosure which is not necessarily prior art. [0005] The operation of electronic devices generates electromagnetic radiation within t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00
CPCH05K1/0224H01L23/552H01L2924/0002H05K1/0243H05K2201/09681Y10T29/49002H01L2924/00
Inventor J·宋P·F·狄克逊Y·阿里恩
Owner LAIRD TECH INC