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Commercial
RF Courses
Public Domain
A BIG LIST
Active-HDL: 800-487-8743, Aldec | VHDL design
Antenna System Planner: 708-349-3300, Andrew Corp. / Orland Park, IL | Antenna System Design
Ansoft
Corp.:
412-261-3200, Ansoft / Pittsburgh, PA | Electromagnetic
S/FilSyn (PCFilt) from ALK Engineering: This PC demo version only works at one frequency, 833MHz (frequency translation is easy to do by hand, so the demo can easily be used for any design with a little thought!). The demo is pretty good. The interface is good, but not as good as MicroSim's software. They will give you a full version for 30 days. They claim it's the best filter software around.
Filtroid
from GigaSim:
$995, The demo is pretty bad, but it's still worth a try.
Spur Chart Calculator: Useful for defining the specifications of RF filters.
Cascaded
Block Analysis:
A tool for analyzing a cascade of nonlinear noisy blocks.
MATCHER, An Impedance Matching Network Design Webpage(now with 16 networks!), written in JavaScript/HTML.
High
Q and Broadband Matching Program,
software developed by a ham radio operator.
3rd Order PLL Design Software: A useful DOS program for designing a 3rd order PLL loop filters.
2nd
Order PLL Design Software:
A useful DOS program for designing a 2nd order PLL loop filters.
Eagleware PLL Design: PLL synthesis software. I'm sure it's expensive.
National's PLL Design Software: Oh Boy! This is some good stuff.
ASITIC: Analysis and Simulation of Spiral Inductors and Transformers for ICs. A very good passive component design and analysis program. Useful for analysis of any multilayer planar structure (inductors, capacitors, substrate isolation, etc.) Ali's Homage has more information on ASITIC
Magnetics
Designer:
A full featured transformer and inductor design software from
Intusoft. This isn't the real program, but it is a great demo.
SISP - SPiral Inductor SImulation Program
Automated Switched Capacitor Integrator Designer: This is preliminary synthesis program I designed. Pole-zero cancellation doesn't work ideally, because of process variations, so I'm modifying the program for a better architecture. In any case I hope you find it helpful. I also have a Mathcad version of the routine.
Basic
Op-Amp Transfer Functions:
A simple discussion of operational amplifier transfer functions.
MIDAS: Mixed Digital/Analog Sampled-Data Simulator. Good for sigma delta modulator design.
Richard
Schreier's Delta Sigma Toolbox,
A great collection of design tools for sigma delta modulators, I
find the coefficient sizing works great except for cascade and
multibit modulators.
Olympus Digital Design Software from Stanfurd (May I ment Stanford)
Analog Integrated Circuits at Berkeley: This is the homepage for analog integrated circuit design at Berkeley.
Aalborg
University, DK:
Has some interesting research and nonlinear noise software.
