Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power distribution network in high-speed circuit system

A power distribution network and circuit system technology, applied in the field of power distribution network, can solve the problems of destroying the signal integrity of high-speed circuits, the discontinuity of the return current path, and increasing the high-frequency impedance of capacitors, so as to improve signal integrity and reduce The effect of small damage and increased bandwidth range

Inactive Publication Date: 2015-01-14
SHANGHAI JIAOTONG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the method of adding a decoupling capacitor, the parasitic inductance will increase the high-frequency impedance of the capacitor, making the noise suppression measure invalid when the operating frequency is greater than GHz
While the power / ground plane split approach suppresses noise, it creates a discontinuity in the return current path, which destroys the signal integrity of high-speed circuits.
In addition, the method of selecting the position of the via hole through the resonance phenomenon can avoid the resonance peak of the resonance frequency, but the plane resonance also has frequency dependence, so that this method can only be used for certain specific resonance frequency points. has certain limitations

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power distribution network in high-speed circuit system
  • Power distribution network in high-speed circuit system
  • Power distribution network in high-speed circuit system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] 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.

[0028] like figure 1 Shown is a top view of the power plane structure of the power distribution network involved in the present invention. Complementary split-ring resonators are distributed on the metal surface on one side of the embedded capacitor 7, wherein resonator 1 represents the position of the high-speed digital circuit, and resonator 2 represents the position of the radio frequency / analog circuit.

[0029] like figure 2 Shown is a schematic diagram of the power distribution network structure involved in the present invention in actual testing. Two of the test ports are respectively connected together through the vector network analyzer 3 and the SMA coaxial connector 4 to test the noise suppression transmission coefficient between the ports.

[0030] ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a power distribution network in a high-speed circuit system. The metal surface at one side of a buried capacitor is locally etched with a complementary split ring resonator, and the metal surface at the other side of the buried capacitor keeps complete; and simultaneously, the upper side and the lower side of the buried capacitor are respectively added with a layer of FR-4 medium, and SMA (shape memory alloy) coaxial joints are used for connecting a circuit board to a vector network analyzer to test a noise suppression transmission coefficient among ports. According to the power distribution network, the problems that the noise suppression band of a synchronous switch in the high-speed circuit system is not wide and the suppression degree is not deep are effectively solved, and simultaneously the damage for a return current path of a circuit is less. The mixed high-speed circuit system based on the power distribution network has good power integrity, and is convenient for standard technical processing of printed circuit boards.

Description

technical field [0001] The present invention relates to a power distribution network in a high-speed circuit system, in particular to a high-speed digital circuit and radio frequency / analog circuit system, which solves the problems of signal integrity and power integrity, and suppresses synchronous switching noise with a wide stop band. Power distribution network. Background technique [0002] With the development of electronic systems towards high speed, high power consumption, high density, low voltage and high current, in future hybrid circuit systems, high-speed digital processors, memories, radio frequency (RF) / analog circuits, sensors, Integration of multi-functional devices such as micro-electro-mechanical systems (MEMS), optoelectronic devices, etc. This kind of micro-system integration also requires communication and computing capabilities. System-in-package (SOP) technology provides the most effective solution for package-chip co-design and has become one of the t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H03H17/02
Inventor 朱浩然毛军发
Owner SHANGHAI JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products