H
ELECTRICITY
H01
ELECTRIC ELEMENTS
H01Q
ANTENNAS, i.e. RADIO AERIALS
H01Q13/00
Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
H01Q13/10
Resonant slot antennas
H01Q13/12
Longitudinally slotted cylinder antennas; Equivalent structures