Power source distribution network with small electromagnetic band gap structure units

Abstract

The invention discloses a power source distribution network with small electromagnetic band gap structure units. An electromagnetic band gap structure is etched on a power source surface of the power source distribution network, the ground keeps complete based on the consideration of completeness of signals, and basic units of the plane electromagnetic band gap structure are composed of complementary split ring resonators. The power source distribution network with the small electromagnetic band gap structure units effectively resolves the problem of noise suppression of a synchronous switch in a mixing circuit system, and compared with other typical plane electromagnetic band gap structures, the size of the unit structure can be reduced. In addition, the noise suppression performance of the power source distribution network is hardly influenced by the tiny variation of the size, and the power source distribution network is good in robustness and can be effectively applied to a high-speed multi-layer circuit design.

Description

technical field [0001] The invention relates to a power distribution network with a miniaturized electromagnetic bandgap structure unit, in particular to a power distribution network for solving the problem of power integrity in a hybrid high-speed circuit system. Background technique [0002] With the development of integrated circuits and system-in-package technologies, the density of hybrid circuit systems is getting higher and higher, and circuit modules such as high-speed digital circuits, radio frequency / analog circuits, memory and sensors need to be integrated in the same system. In the past, the problem of signal integrity was the key analysis object of digital circuit design. However, with the continuous improvement of the application frequency band, the problem of power integrity is becoming more and more important. [0003] In a high-speed digital circuit, when many pins of the chip jump at the same time, a large transient current will flow through the ground, and...

AI Technical Summary

Problems solved by technology

However, there is little research on how to reduce the size of EBG structural units while maintaining the noise suppression performance.

[0006] In fact, in the design of using the planar EBG structure to solve the SSN noise problem, since the EBG is a periodic distribution structure, it will inevitably destroy the return path of the current, which will greatly affect the power distribution network. signal integrity

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