https://github.com/hftools/hftools
Hftools is a python package containing useful tools for high frequency electrical engineering problems. Hftools is focused on generally useful tools such as file readers, multiport classes, an improved array class (hfarray), dataset class. More specialized tools will be broken out into seprate packages. One such package is caltools which contains tools for doing Vector Network Analyzer (VNA) calibrations
http://github.com/alexforencich/python-ivi
Python IVI is a Python-based interpretation of the Interchangeable Virtual Instrument standard from the IVI foundation. Python IVI can use Python VXI-11, Python USBTMC, pySerial and linux-gpib to connect to instruments. The implementation of the initialize method takes a VISA resource string and attempts to connect to an instrument.
Qucs is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit. After that simulation has finished you can view the simulation results on a presentation page or window.
http://mradway.github.io/hycohanz/
hycohanz is an Open Source (BSD license) Python wrapper interface to the ANSYS HFSS Windows COM API, enabling you to control HFSS from Python. hycohanz simplifies control of HFSS from Python for RF, microwave, and antenna engineers.
If you would like to list your open source project here please contact me at arsenovic at virginia.edu