Power supply distribution network based on local electromagnetic band gap structure

A technology of electromagnetic bandgap structure and power distribution network, applied in the direction of electrical components, output power conversion devices, etc., can solve the problems affecting the signal integrity of the power distribution network, destroying the current return path, etc., to improve signal integrity, accelerate Large noise suppression depth, the effect of reducing interference

Inactive Publication Date: 2013-03-06
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In the traditional design of using the coplanar electromagnetic bandgap structure to solve the synchronous switching noise, since the electromagnetic bandgap structure is a periodic distribution structure, the groove lines are periodically etched on the power plane, thus destroying the return path of the current , which greatly affects the signal integrity of the power distribution network

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  • Power supply distribution network based on local electromagnetic band gap structure
  • Power supply distribution network based on local electromagnetic band gap structure
  • Power supply distribution network based on local electromagnetic band gap structure

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Embodiment Construction

[0024] In order to make the technical means, creative features and objectives of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0025] like figure 1 As shown, it is a schematic diagram of a three-dimensional structure of the power distribution network involved in the present invention. Power distribution network In the hybrid high-speed circuit system, the hybrid high-speed circuit system includes noise source circuits and noise-sensitive circuits. The noise source circuits include high-speed digital circuits, high-...

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Abstract

The invention discloses a power supply distribution network based on a local electromagnetic band gap structure. The electromagnetic band gap structure is locally etched on a power supply plane, and a ground plane is kept intact. Basic units of the electromagnetic band gap structure are formed by complementary split ring resonators, and the adjacent basic units of the electromagnetic band gap structure are connected by a Z-shaped bridge. The problems that the inhibiting degree of synchronous switching on and off noise in a hybrid circuit system is not high enough and the inhibiting frequency band is not wide enough are effectively solved, and the problem that the destructiveness of the traditional global electromagnetic band gap structure to the power supply plane is large can be solved. The power supply distribution network disclosed by the invention has excellent power supply integrity, and the influence of electromagnetic interference can be lowered.

Description

technical field [0001] The present invention relates to high-speed circuit microwave technology, in particular to a power distribution network based on a local bandgap structure, especially a power distribution network used to solve the problems of power integrity, signal integrity and electromagnetic integrity in modern hybrid systems, The invention is designed based on a local electromagnetic bandgap structure, and has the characteristics of low electromagnetic interference and good signal integrity while suppressing synchronous switching noise with a wide stopband. Background technique [0002] With the development of modern wireless communication systems, the integration level and manufacturing process of large-scale integrated circuits are constantly improving. In order to meet the requirements of high speed and low power consumption of the system at the same time, the operating frequency of digital circuits is getting higher and higher. The high-speed clock signal The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/44
Inventor 朱浩然毛军发
Owner SHANGHAI JIAO TONG UNIV
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