Polar Instruments Si9000e 2025
Polar Instruments Si9000e: The Precision Tool for PCB Controlled Impedance Design
Polar Instruments Si9000e is a specialized and widely-used software application for the design and verification of controlled impedance printed circuit board (PCB) traces. It employs a powerful 2D field solver engine to accurately calculate the characteristic impedance, propagation delay, and crosstalk of single-ended and differential transmission lines based on the exact PCB stackup, materials, and trace geometry. This is essential for high-speed digital, RF, and microwave circuit designs where signal integrity is paramount.
Core Function: Accurate Modeling of PCB Transmission Lines
The software's primary function is to solve Maxwell's equations for the user-defined PCB cross-section. By precisely modeling the electromagnetic fields around the traces, it calculates impedance values that are far more accurate than those from simple formula-based calculators, accounting for complex effects like edge coupling, sidewall shape, and proximity to reference planes.
Key Calculation & Analysis Capabilities:
1. Extensive Transmission Line Model Library
-
Comprehensive Models: Includes over 40 built-in models for common PCB structures: Surface Microstrip, Embedded/Offset Stripline, Dual Stripline, Coplanar Waveguide (CPW), and Edge-Coupled (differential) variants of each.
-
Advanced Models: Covers complex geometries like Broadside-Coupled Stripline, Dual Asymmetric Stripline, and models that account for solder mask and trace sidewall angle (trapezoidal shape due to etching).
2. Material & Stackup Management
-
Stackup Designer: Allows detailed definition of the PCB layer stackup—dielectric thickness, core/prepreg materials, copper weights (in oz or μm), and dielectric constant (Dk/Df).
-
Material Library: Includes a database of common laminate materials (FR4, Rogers, Isola) with typical Dk values, which can be customized.
3. Practical Engineering Workflows
-
Solve for Impedance: Enter a target impedance and trace geometry to solve for the required trace width.
-
Solve for Geometry: Enter a known trace width to calculate the resulting impedance.
-
Crosstalk (NEXT/FEXT) Analysis: Calculates near-end and far-end crosstalk between adjacent traces.
-
Loss & Frequency Analysis: Can perform calculations considering dielectric and conductor losses over frequency.
Product:Polar Instruments Si9000e 2025
Lanaguage:english
Platform:Win7/WIN10
Size:1CD