Program Name: LT SPICE
Function: Linear and nonlinear circuit analysis
License type: Freeware.
Link location: External
Description:
This spice simulator is supplied by the folks at Linear technology.
It's optimized for LTC switching power supply analysis, but is useful for lots of other things as well!
Very possibly the best SPICE simulator you can get for FREE!
https://www.linear.com/software/ Electrical Engineering Software HOME Program Name: Spice Opus
Function:
License type: Demo
Link location: External
Description:
SPICE OPUS is a circuit simulator with optimization utilities. It is a recompilation of the original
Berkeley's source code for Windows 95/98/NT and Linux operating systems. Georgia Tech Research Institute's
XSPICE mixed-mode simulator was added to the Berkeley code.
Spice Opus home page Electrical Engineering Software HOME
Simulate circuits made of passive lumped components, S-Parameter defined components
and transmission lines. This program is quick and easy to use, I use it all the time.
DOWNLOAD NOW Browse the program's README file first Electrical Engineering Software HOME Program Name: sparam [ANTIQUE]
Function: Performs various S-parameter calculations
License type: Freeware
Link location: Local
Description:
Handy little tool for figuring reflection coefficients, desigign L, T, PI networks,
Tee and PI pads, etc.
DOWNLOAD NOW Electrical Engineering Software HOME Program Name: Y2F [ANTIQUE]
Function: Compute system noise figure from measured Y factor.
License type: freeware
Link location: Local
Description: Use to calculate noise figure when all you have
are a noise source, and an RF power indicator. Y factor is the ratio of RF ouput power with the noise source ON
to RF output with the noise source off. If you know the ENR of the noise source, and measure the Y factor, you
can calculate the system noise figure.
DOWNLOAD program C++ source code Electrical Engineering Software HOME
Circuit Analysis, Software, Electrical Engineering Software, mostly FREE