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a microstrip line

A technology of microstrip line and metal strip, applied in the field of microstrip line, can solve the problems of space wave leakage and electromagnetic wave crosstalk of microstrip line, and achieve the effect of solving electromagnetic wave crosstalk and suppressing space wave leakage

Active Publication Date: 2016-04-20
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 space wave leakage of the high-order mode of the microstrip line in the prior art, and provide a microstrip line that can effectively suppress the space wave leakage and solve the electromagnetic wave crosstalk between the microstrip lines The problem

Method used

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Examples

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Embodiment 2

[0034] Is another embodiment of the present invention, such as Figure 4 As shown, it is a suspended microstrip line. The difference from Embodiment 1 is that the ground plate 20 is suspended directly under the dielectric substrate, and is not closely attached to the dielectric substrate. Example 1 is the same.

Embodiment 3

[0036] Such as Figure 5 As shown, it is an inverted microstrip line. The difference from Embodiment 2 is that the metal strip 10 is located on the same side as the ground plate 20, and is closely attached to the dielectric substrate. Example 2 is the same.

Embodiment 4

[0038] Such as Image 6 Shown is a coupled microstrip line. The difference from Embodiment 1 is that two identical metal strips 10 are provided on one side of the dielectric substrate, and a grounding plate 20 is provided on the other side. The refractive index distribution of the dielectric substrate under a metal strip 10 is the same as that of the first embodiment.

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Abstract

The present invention relates to a microstrip. The microstrip comprises a metal strip, a dielectric substrate, and a ground plate, and is characterized in that: the dielectric substrate is formed by splicing a first substrate and a second substrate, the first substrate and the second substrate have different refractive index distributions, the first substrate has spliced on both sides thereof second substrates, the metal strip has arranged directly thereunder the first substrate, and the ground plate is arranged directly under the dielectric substrate. By employing under the metal strip the two types of dielectric substrates having different refractive index distributions, the microstrip of the present invention effectively inhibits space wave leakage, thus solving the problem of electromagnetic wave crosstalk between microstrips.

Description

Technical field [0001] The invention relates to the field of PCB (Printed Circuit Board, printed circuit board), and more specifically, to a microstrip line on a PCB board. Background technique [0002] Microstrip Line (MicrostripLine) is currently the most used planar transmission line in Hybrid Microwave Integrated Circuits (HMIC) and Monolithic Microwave Integrated Circuits (MMIC). Such as figure 1 As shown, from the structural point of view, the microstrip line is placed on a ground plate 2 by a very thin metal strip 1 at an interval much smaller than the wavelength. The metal strip 1 and the ground plate 2 are separated by a dielectric substrate 3. [0003] The outstanding advantages of the microstrip line are its small structure and light weight. It can be used to make complex microwave circuits in a small volume by using techniques such as lithography, etching and etching. It is also easy to integrate with other microwave devices to realize microwave components and systems. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P3/08
CPCH01P3/08H01P3/084
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