I don't have a link. It got written up as an undergraduate thesis in about 1991, but as far as I know the University of Sydney doesn't keep copies of such documents.
I'm not sure what the outcome was, though it must have gotten to a certain point of success, since I've memories of a car driving around with a corner reflector on it.
The same student was experimenting with using a plasma as the modulated reflector, but that one ended when he connected the wrong end of the vacuum pump to his gear, accidentally pressurised it, and blew it up!
