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Electromagnetic shielding structure

A technology of electromagnetic shielding structure and electromagnetic shielding layer, which is applied in the field of radio frequency, can solve problems such as electromagnetic interference, and achieve the effect of avoiding electromagnetic interference

Inactive Publication Date: 2013-04-24
青岛联盟电子仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention proposes an electromagnetic shielding structure, which solves the problem that electromagnetic interference is easily generated between vertically distributed metal wires in the prior art

Method used

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0015] figure 1 It is a three-dimensional structural schematic diagram of an embodiment of an electromagnetic shielding structure of the present invention. Such as figure 1 As shown, the electromagnetic shielding structure 1 includes metal grounds 2 and 2 ′ and an electromagnetic shielding layer 3 . The electromagnetic shielding layer 3 is a metal layer, and a coupling window 4 and a via isolation window 5 are opened on the electromagnetic shielding layer 3 . Th...

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Abstract

The invention provides an electromagnetic shielding structure which comprises a top layer metal ground, a bottom layer metal ground, an electromagnetic shielding layer, an upper layer coupling metallic conductor, a lower layer coupling metallic conductor, an upper through hole and a lower through hole, wherein the electromagnetic shielding layer is located between the top layer metal ground and the bottom layer metal ground, the electromagnetic shielding layer is a metallic layer and is provided with a coupling window, the upper layer coupling metallic conductor and the lower layer coupling metallic conductor are longitudinally symmetrical with each other relatively to the coupling window, one ends of the upper through hole and the lower through hole are respectively connected with the upper layer coupling metallic conductor and the lower layer coupling metallic conductor, and the other ends of the upper through hole and the lower through hole are respectively connected with the top layer metal ground and the bottom layer metal ground. The electromagnetic shielding structure is capable of achieving vertical coupling of certain metallic conductors and meanwhile avoiding electromagnetic interference generated between other metallic conductors.

Description

technical field [0001] The invention relates to the radio frequency field, in particular to an electromagnetic shielding structure. Background technique [0002] In the field of radio frequency technology, the width of metal wires is often on the order of millimeters and microns, and the wavelength of microwaves is also on the order of millimeters and microns. Since the width of metal wires is comparable to the microwave wavelength, electromagnetic interference is an important problem in the field of radio frequency technology. [0003] In the low-temperature co-fired ceramic process, metal wires are distributed on multi-layer dielectrics, and sometimes metal wires on different dielectric layers are required to transmit electromagnetic energy through vertical coupling. But sometimes vertical coupling of metal wires on different dielectric layers should be avoided, otherwise electromagnetic interference will occur. Contents of the invention [0004] The invention proposes...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00
Inventor 王玲
Owner 青岛联盟电子仪器有限公司
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