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Microstrip lines based on metamaterials

A technology of metamaterials and microstrip lines, applied in the field of microstrip lines, can solve problems such as space wave leakage and electromagnetic wave crosstalk of microstrip lines, and achieve the effects of cost saving, easy mass production, and suppression of space wave leakage

Active Publication Date: 2015-08-19
KUANG CHI INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects of the spatial wave leakage of the high-order mode of the microstrip line in the prior art, and provide a microstrip line based on metamaterials, which can effectively suppress the space wave leakage and solve the problem of the gap between the microstrip lines. The problem of electromagnetic wave crosstalk

Method used

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  • Microstrip lines based on metamaterials
  • Microstrip lines based on metamaterials
  • Microstrip lines based on metamaterials

Examples

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Embodiment 1

[0032] Such as figure 2 As shown, the present invention constructs a microstrip line based on metamaterials. The microstrip line includes a metal strip 10, a dielectric substrate 30, and a ground plane 20, wherein the metal strip 10 and the ground plane 20 are respectively distributed on the medium The two sides of the substrate 30, and the metal strip 10 is closely attached to the dielectric substrate 30 by means of a printed circuit board.

[0033] In a preferred embodiment of the present invention, the ground plate 20 is closely attached to the lower side of the dielectric substrate 30. In order to suppress the leakage of space waves generated during the electromagnetic wave transmission process of the metal strip 10, a metamaterial substrate is used as the dielectric substrate 30. , thereby reducing the electromagnetic wave crosstalk between adjacent microstrip lines.

[0034] The metamaterial substrate 30 is composed of a plurality of metamaterial sheets 301, wherein ea...

Embodiment 2

[0041] is another embodiment of the present invention, such as Figure 5 As shown, it is a suspended microstrip line based on metamaterials. The difference from Embodiment 1 is that the ground plate 20 is suspended directly below the metamaterial substrate 30 and is not attached to the supermaterial substrate 30. The material substrate 30 is the same as that of the first embodiment in other respects.

Embodiment 3

[0043] Such as Image 6 As shown, it is an inverted microstrip line based on metamaterials. The difference from Embodiment 2 is that the metal plate 10 is located on the same side as the ground plate 20 and is closely attached to the metamaterial substrate 30. , other are all identical with embodiment 2.

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Abstract

The invention relates to the field of microstrip lines and provides a metamaterial-based microstrip line. The microstrip line comprises a metal strip, a dielectric substrate and an earth plate, wherein the dielectric substrate is a metamaterial substrate; the metal strip and the earth plate are respectively arranged on the two sides of the metamaterial substrate and cling to the metamaterial substrate; and the metamaterial substrate comprises a plurality of metamaterial sheet layers. The microstrip line has the beneficial effects that refractive index distribution is achieved via the metamaterial substrate, so that space wave leak of the microstrip line is effectively restricted and the problem of electromagnetic wave crosstalk between adjacent microstrip lines is solved; and the metamaterial substrate is simple in preparation process and does not require complex splicing technology, thus reducing the cost.

Description

technical field [0001] The invention relates to the field of microstrip lines, more specifically, to a microstrip line based on metamaterials. Background technique [0002] Microstrip Line (Microstrip Line) is currently the most widely used planar transmission line in Hybrid Microwave Integrated Circuits (HMIC) and Monolithic Microwave Integrated Circuits (MMIC). From a structural point of view, the microstrip line is placed on a ground plate by a very thin metal strip at an interval much smaller than the wavelength, and the metal strip and the ground plate are separated by a dielectric substrate. [0003] The outstanding advantages of microstrip lines are compact structure and light weight. Complex microwave circuits can be made in a small volume by stereolithography, photolithography, corrosion and other processes, and it is easy to integrate with other microwave devices to realize microwave components and systems. integration. [0004] With the miniaturization of microw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P3/08
Inventor 刘若鹏季春霖岳玉涛李星昆周添宿超杨树坤
Owner KUANG CHI INST OF ADVANCED TECH