QuickSmith, creation of Nathan Iyer, has been around for a long time. It is without a doubt one of the most feature-filled examples of RF design software around. Nathan recently released a Web-based version of QuickSmith on a GitHub server, which means it works on any platform with a browser - desktop or mobile (some features are not accessible on mobile). Access is free, and you can save and reload your design files rather than losing your work once you leave the website. Being online also means that the latest version is always available. The screenshot to the right illustrates where to place series and parallel components, and where to access the sweep parameter settings. Be sure to scan through the FAQ page for tips like setting the component up/down button value adjustments and turning features on and off.
Per the QuickSmith website --
Screen shot of series and parallel components added to schematic. See video below.
QuickSmith is a Smith Chart based linear circuit simulation program. Some of the features offered by this program are listed below: - Ladder network, elements are loaded using drag drop method.
Open and Save functions for schematic files
Impedance matching - Frequency/component sweep
Load impedance interpolation/extrapolation for frequency dependent loads
Q factors taken into account for network components
Amplifier design/analysis using gain/noise circles
Insertion loss and S21 graphs
Transmission line parameter calculations
Constant Conductance, VSWR and Q circles
Import and Export of data files
Help files with solved examples of network matching and amplifier design
Posted August 30, 2017
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