Does anyone have any .pdf datasheets or .xls spreadsheets with dimensions and/or calculations for slotted waveguide antennas like those that that Trevor Marshall guy on the net made?

The reason Im asking is that I have access to a CNC milling machine, and I should be able to get them made cheap. Im looking to make a prototype + test it then do a batch run.

I dont know shit about linux, AP's or Auckland, but I like to think I know a fair bit about antennas and electromagnetics.