Patent ID: 8237618

Claim:
A slot-fed Yagi aerial comprising a cable, a reflector, an active dipole, and at least one director; the reflector, the active dipole, and the director being in turn separately arranged on a support tube from its one end; the active dipole being a half wavelength dipole, wherein the feeding section of the Yagi aerial is a shielded slot structure, and the distance between the two ends of the slot is approximately one half of the wavelength of the electromagnetic signal desired to be received; two pieces of thin metal rods composes the half wavelength dipole, and are separately located at the two external sides of the slot; the outer conductor of the cable is connected to one side of the slot, and the inner conductor of the cable is connected to the other side of the slot or the inner conductor of the cable isolated by a dielectric layer is wound around at the other side of the slot, so as to realize a direct connection feed or a coupling feed.