Distributed decoupling analysis on PG planes for PDN design

Author

Luo, Guang-Xiao ; Cui, Xiang ; Wei, Xing-Chang ; Li, Er-Ping

Author_Institution

State Key Lab. of Alternate Electr. Power, North China Electr. Power Univ., Beijing, China

fYear

2012

fDate

17-21 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

A method is presented to get the distributed characteristic of impedance and the locations of decoupling capacitors on power-ground(PG) planes for minimizing the impedance design. Multi-port networks method based on the integral equation is proposed to model the PG pair with voltage regulator module(VRM) and decoupling capacitors, the distributed characteristic of impedance is analyzed by ports reduced process, and the location of decoupling capacitors is advised to lower the power distribution network (PDN) impedance and the noise coupling on the whole PG plane. Numerical examples reveal that this location optimizing process is efficient for PDN Design.

Keywords

capacitors; circuit noise; electric impedance; multiport networks; power supplies to apparatus; voltage regulators; PDN design; PG pair; PG planes; VRM; decoupling capacitors locations; distributed decoupling analysis; impedance distributed characteristics; integral equation; location optimizing process; multiport networks method; noise coupling; ports reduced process; power distribution network; power-ground planes; voltage regulator module; Capacitors; Couplings; Impedance; Integrated circuit modeling; Mathematical model; Noise; Distributed Decoupling; Multi-port Networks; Noise Coupling; PG Planes; Target Impedance;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC EUROPE), 2012 International Symposium on

Conference_Location

Rome

ISSN

2325-0356

Print_ISBN

978-1-4673-0718-5

Type

conf

DOI

10.1109/EMCEurope.2012.6396732

Filename

6396732