Spiral resonant ring ultra-wideband simultaneous switching noise suppression power distribution network

A technology of synchronous switching noise and power distribution network, applied in the direction of eliminating voltage/current interference, improving reliability, etc., can solve problems such as insufficient noise suppression bandwidth, weak engineering realizability, complex structure, etc., to maintain signal integrity, Simplified structure and process flow, good omnidirectional effect

Inactive Publication Date: 2016-04-20
10TH RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problems of insufficient noise suppression bandwidth, complex structure, high cost and weak engineering realization of existing noise suppression structures, while maintaining good signal integrity

Method used

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  • Spiral resonant ring ultra-wideband simultaneous switching noise suppression power distribution network
  • Spiral resonant ring ultra-wideband simultaneous switching noise suppression power distribution network
  • Spiral resonant ring ultra-wideband simultaneous switching noise suppression power distribution network

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Embodiment Construction

[0029] The present invention will be described in detail 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. The present invention will be further described below in conjunction with the accompanying drawings.

[0030] refer to figure 1 . In the embodiment described below, the spiral resonant ring ultra-wideband synchronous switching noise suppression power supply distribution network mainly includes a power plane distribution structure, a local isolation structure 9 etched on the power plane, and a medium between the power plane and the ground plane 4 layer. The power distribution network consists of a...

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Abstract

The invention discloses a spiral resonant ring ultra-wideband simultaneous switching noise suppression power distribution network, and aims to provide a power distribution network having the advantages of simple structure, high engineering realizability, no need of slotting a power supply plane, no need of any periodical electromagnetic band gap structure and large simultaneous switching noise suppression depth. The technical scheme for realizing the power distribution network is characterized in that a printed circuit board (PCB) structure is adopted for the power distribution network; local isolating structures are positioned in areas where a noise source input circuit and a noise sensitive circuit on a power supply plane structure are positioned respectively, and etched with spiral resonant rings; the spiral resonant rings are etched on the power supply plane according to a power supply plane distribution structure in order to isolate simultaneous switching noise between a power supply and a ground plane; and an attenuation band is formed in a band frequency band through the resonant effects of the spiral resonant rings in conjunction with coupling resonance among the power supply plane, a ground plane metal layer and a dielectric layer, so that a transmission path of the simultaneous switching noise is blocked; surface waves are suppressed; and the simultaneous switching noise is suppressed.

Description

technical field [0001] The invention relates to the field of power supply integrity and high-speed circuit microwave technology, and relates to a spiral resonant ring ultra-broadband synchronous switching noise suppression power supply distribution network based on local resonance isolation. The invention can be widely used in high-speed electronic circuit equipment. Background technique [0002] With the development of modern high-speed digital circuits, the problem of simultaneous switching noise (SSN: Simultaneous Switching Noise) between the power plane and the ground plane has become more and more prominent due to reasons such as fast edge rise rate, high clock rate and low voltage level. Synchronous switching noise is caused by multiple resonant modes between the power plane and the ground plane when the currents of multiple active devices on the printed circuit board (PCB) are switched simultaneously, and synchronous switching noise can cause signal integrity and elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K19/003
CPCH03K19/00346
Inventor 杨海峰柴霖徐茂格
Owner 10TH RES INST OF CETC
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