Happy Fall 2025! This is the summary of what went public this summer, written for anyone who found one of the repositories and wants to know how it fits with the rest.
AntennaCAT. The Antenna Calculation and Autotuning Tool is the center of all of it. It was my 2024 dissertation, it is the subject of a 2025 article in IEEE Antennas and Propagation Magazine, and 2025 brought its first full release, followed by a minor release to clear up some Windows 11 bugs. The wiki carries the documentation; the methodology is in the paper and in the posts here on the template system.
The optimizers and their benchmark. The optimizers inside AntennaCAT are also standalone repositories, each one a state machine that can be unit-tested against mathematically defined problems. The Objective Function Test Suite is the collection of those problems, which gives the whole set a standardized benchmark. Both are open, and both are covered in the optimizer post.
Cat antennas. The cat-shaped Wi-Fi antennas for the 2.4, 5, 5.8, and 6 GHz bands that have turned up in papers and talks are in the research antenna collection, with .dxf files for some of the designs. The Cat Antennas post has the pictures.
Device libraries. Two in-development Python libraries came out of research and experimental work: one for the tinySA spectrum analyzers and one for the NanoVNA series. The aim is programmatic control for RF testing, written so that someone new to the instruments can follow along. The tinySA post is the introduction.
Course samples. The public halves of several undergraduate units are on GitHub: cryptography, machine learning for antennas, reverse engineering, and computer vision. The full versions have slides and assignments; these are the parts that stand on their own.
This site. Moving to a GitHub Pages site was a chance to re-document a lot of existing work, and the format change comes with a change of habit: everything written up here links to a repository with something you can run. Some posts are reworked versions of material that appeared elsewhere first, and more of those are being pulled back here as they are brought up to date. A bookshelf of the hard-copy references I use for course and tutorial development is here too.
Written for the August 2025 release; the links above point to posts that were published later as they were brought up to date.