Title :
Signal integrity issues at split ground and power planes
Author :
Liaw, Haw-Jyh ; Merkelo, Henri
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
The signal integrity issues at split ground and power planes are studied by 3D, time-domain, full-wave simulations and SPICE circuit simulations. Dynamics of the mode conversion between microstrip line mode and slotline mode is presented as a series of snapshots of a computer animation. Equivalent circuits based on transmission line model and mode conversion are developed and validated by published experimental data. It is also demonstrated that under certain resonance conditions, the unwanted noise coupling between two signal lines that cross the same ground slot can reach a very high percentage. Design rules for choosing the slot width for isolated ground and power islands in mixed-signal environment are also discussed
Keywords :
SPICE; circuit analysis computing; circuit noise; equivalent circuits; microstrip lines; printed circuit layout; slot lines; time-domain analysis; transmission line theory; 3D time-domain full-wave simulations; PCB layout; SPICE circuit simulations; design rules; equivalent circuits; microstrip line mode; mixed-signal environmen; mode conversion; noise coupling; resonance conditions; signal integrity; slotline mode; split ground planes; split power planes; transmission line model; Animation; Circuit simulation; Computational modeling; Distributed parameter circuits; Equivalent circuits; Microstrip; Power transmission lines; SPICE; Slotline; Time domain analysis;
Conference_Titel :
Electronic Components and Technology Conference, 1996. Proceedings., 46th
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3286-5
DOI :
10.1109/ECTC.1996.550491
