SLOT-FED YAGI AERIAL

• Main Author: WU, JINBO
• Format: Patent
• Language: Chinese; English; French
• Published: 19.02.2009
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

A slot-fed Yagi aerial includes: a cable (1), a reflector (2), an active dipole (3) and directors (4), wherein, the reflector (2), the active dipole (3), etc. are provided on a support tube (5); the feeding section of the Yagi aerial is of a shielded slot structure (6) in which the distance between the ends of the slot (7) is approximately one half of the wavelength of the electromagnetic signal desired to be received; the two pieces of thin metal rods composing the half wavelength dipole (3) are located at two external sides of the slot (7), the outer conductor of the cable (1) is connected to one end of the slot (7), and the inner conductor of the cable (1) is connected to the other end of the slot (7) or the inner conductor of the cable (1) is wound around at the other side of the slot (7) that is isolated by a dielectric layer, so as to realize a direct connection feed or a coupling feed. The slot-fed Yagi aerial employs a half wavelength dipole (3) composed of two pieces of thin metal rods, and its feedi