PowerSmith (c)
PowerSmith by David Tomanek VA3DIW and Martin Kratoska OK1RR is program designed for impedance matching. Use the program for broad range of applications, from discrete circuits to antennas. Generally, it is a modeling tool.
The Smith chart employs series impedance values. e.g. values measured with an impedance bridge or vector network analyzer. PowerSmith handles conversion between parallel impedance of Zp and series impedance of Zs. Model of lumped elements and lossy transmission line is included. You may load data file with complex reflection coefficients. ELNEC, EZNEC, PowerSmith as well as microwave network analyzers generate these files. You may stop your design at any time and save your project using the proprietary data format. Features include s-parameters and scattering matrices. The program has a passive frequency sweeper and an active component tuner. Special cursor works as a magnifying glass, providing the means of exact impedance reading. The cursor is adjustable and there is no need for mouse. Of course, the PowerSmith has detailed SWR chart. The graphical interface reveals behavior of a complex load with a complex matching network. You may manually design your matching network, or use the features of AutoMatch. Choose frequency and impedance of your interest. The AutoMatch will search for matching combinations. The final draft is a schematic diagram of suggested matching networks. Added features are advanced LNA and amplifier analysis from the s-parameters, stability, gain circles and noise figure circles. The package is shareware. The software never expires. Please register at the authors.
System:
Try the Caldera OpenDOS, IBM DOS, DrDOS, FreeDOS, PharLap, gentoo Linux with prompt emulation, Ubuntu, and Lynx. More interesting is Andrew Tanenbaum's Minix OS. Try VMware for multiple OS platforms. It can switch over to different OS within seconds. Windoze is not designed for time-sensitive fast mathematical routines. Windoze is obscure toy. Stable system is OPEN SYSTEM with free source code, where everybody can contribute. We have tried to do something for small companies and hobbyist.
Download PowerSmith ver1.81b (99kB) 30 day eval.
Any use of the software by any government agency is prohibited. Non-profit organizations can use the software since registration for a period of thirty days.
Simulation packages upon NDA.
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mirrors
EMRoutines and Codes of JPL
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Circuit Sage, The software library
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