KiCad project files for the Arduino shield used with the Karl software.
Karl-PCB, Karl, Grote, and the hardware described under scanner-hardware-drawings are all used together to make images of 12GHz RF.
The schematics and layout in the "ScannerBoard" folder are the latest revision I have built and used. You must change some of the parts for it to work properly.
The schematics and layout in the ScannerBoard-Revised" folder have the modifications already made, but I have never had a board made to test the changes.
Both folders contain datasheets of the more critical components of the circuit.