S-Parameter Explorer

Scattering parameters, or S-parameters, are the most common network representation in RF/microwave engineering. In recent years, as the digital circuits are operating in the giga-hertz realm, S-parameters become popular in most areas of electrical engineering. The tool here is an S-parameter plotter and viewer. The utility answers the needs of viewing, and common manipulations, of S-parameters. To get a peek at the tool, click the link to the screen shots of the overview 1, 2, 3, as well as several example plots: Plot-1, and Plot-2. Here are some of the features offered by the tool:

  • Features in Version 1.0
    • Read data from Touchstone or CITI files
    • Derive Y, Z parameters for given S-parameters
    • Perform mixed-mode conversion
    • Write S-parameters to files
    • Plots of S-parameter values (magnitude, phase, db, real or imaginary parts)
    • Export plots to vector-based graphic formats (EPS and SVG)
    • Export plots to raster graphic formats (PNG, JPG)
    • Export plot data to ACSII files
  • Additional features in Version 2.0
    • Port re-indexing
    • Reduce S-parameters by leaving the unused ports either OPEN or terminated at the current block-internal reference impedance
    • Renormalization of S-parameters by choosing a different port reference impedance
    • Separate the N-ports into 2N-nodes, with options of merging the local reference nodes
    • Create S-parameter blocks from single- and multi-conductor transmission-line models
    • Extract RLGC parameters from 2N-port S-parameters for N-coupled transmission-line structures
    • A built-in circuit simulator allowing the generation of new S-parameter block from a composition of existing S-parameter blocks mixed with R/L/C lumped element models
    • A new plotting package, MjoGraph - capable to producing high publication quality plots, is available for Mac OS-X users
  • Added features in Version 2.1
    • Visual assistance in pairing/connectivity definition for mixed-mode conversion
    • Option for splitting the mixed-mode transformed matrix into {DD, DC, CD, CC} sub-matrices

More detailed descriptions are available in the user's guide. Please read the license agreement before downloading.


Click one of the following links for downloading the S-Parameter Explorer:

Each downloaded tool contains a DEMO license. A REGULAR license can be purchased. When help is needed, please read the installation help.

Note: You need to have Java (JDK 1.5 or higher) to run this installer.

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