Browse Prior Art Database

Method and System for Estimating Channel Performance in a Complex System

IP.com Disclosure Number: IPCOM000198220D
Publication Date: 2010-Jul-30
Document File: 2 page(s) / 90K

Publishing Venue

The IP.com Prior Art Database

Abstract

A method and system for estimating channel performance in a complex system is disclosed.

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Method and System for Estimating Channel Performance in a Complex System

Disclosed is a method and system for estimating channel performance in a complex system, when signals are referenced to both power and ground planes and/or vias (mixed referencing). Complex systems are broken down to smaller sub-sections that are modeled using 3D full-wave Finite Element Modeling (FEM) tools and thereafter results of the modeling processes of the sub-sections are concatenated to estimate the channel performance.

The method and system disclosed herein enables analysis of complex systems to include effects of mixed referencing such as crosstalk and power noise at an early design stage. To capture the effects of mixed referencing in signal paths, referencing planes in each of the sub-sections are configured as actual hardware instead of being configured using an "all ground" approach. Subsequently, additional ports are assigned between power and ground planes, which are subsequently connected to the corresponding ports from "plane impedance" simulations on the complete system. By managing the number of these additional ports and their locations, precision modeling
of the effects of mixed referencing is achieved. Both crosstalk and power noise can be precisely captured at the complete system level. The plane impedance simulations may be done on a large scale (full board, module, or system) using power delivery analysis tools.

The figure shows the "sub-sections" and the connection...