rfMaxima

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rfMaxima

rfMaxima is an RF toolbox for the wxMaxima computer algebra system. rfMaxima allows for symbolic derivation, as well as numerical evaluation (incl. Bode and Smith chart plotting), of 2-port network (ABCD, G, InverseABCD, H, S, Y, and Z), noise and stability parameters. Derivations are based on the solution of the set of Kirchoff current and voltage law equations representing the 2-port. Expressions can be exported to HTML or TeX. Figures can be exported to EPS or PNG.

rfMaxima notebook examples

Example 1: ABCD and S matrix of a lossy transmission line
Example 2: Amplitude-frequency hysteresis in flexural-mode vibrating RF MEMS resonators
Example 3: AT-cut quartz resonator notebook
Example 4: Butterworth filter design
Example 5: Class-D power amplifier notebook
Example 6: Constant-k section analysis
Example 7: FBAR notebook
Example 8: Gm-C filter design
Example 9: MESFET notebook
Example 10: Equivalent input noise generators
Example 11: Offset analysis
Example 12: Capacitive fixed-fixed beam RF MEMS SPST switch notebook
Example 13: Smith chart plotting
Example 14: SPNT switch notebook
Example 15: Lossy transformer analysis
Example 16: Waveguide loss (TE₁₀ mode) notebook

Planned extensions

Import utility for Cadence Spectre and SPICE netlists

Requirements

wxMaxima [1] computer algebra system: Please assure that wxMaxima is working properly by calculating factor(50!), especially if you are using the Ubuntu 9.10 default install. If you are working on Ubuntu 9.10, please consider upgrading to Maxima 5.20.1 and wxMaxima 0.8.4-1 [2]

Links

[1] wxMaxima. Available: http://wxmaxima.sourceforge.net

[2] wxMaxima on Ubuntu 9.10. Available: http://help.ubuntu.com/community/wxMaxima