H
ELECTRICITY
H01
ELECTRIC ELEMENTS
H01Q
ANTENNAS, i.e. RADIO AERIALS
H01Q9/00
Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
H01Q9/04
Resonant antennas
H01Q9/0407
Substantially flat resonant element parallel to ground plane, e.g. patch antenna