I attempt to build an HDTV 4 Bay Bow Tie Antenna. This type of antenna works as well or better than store bought antennas for HDTV reception.
The Hoverman UHF antenna design is not new. The original US patents #2918672 and #3148371 date back to no later than 1964 with Doyt Hoverman as inventor.
Optimized stealth hawk design [SolidSignal]