DIPOLE ANTENNA AND ANTENNA SYSTEM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a dipole antenna having simple feeding structure and capable of reducing installation space. SOLUTION: A coaxial feeder 2 is pierced from the rear side of a radio wave reflector 1 to the surface side. The length 11of a parallel part 22 of the coaxial feeder 2 is almost (2n-1)(λ/4). The height h from the radio wave reflector 1 up to a bending part 21 of the coaxial feeder 2 is≤λ/4. One end of a linear conductor 3 is electrically connected to the bending part 21. The linear conductor 3 is arranged almost in parallel with the radio wave reflector 1. The linear conductor 3 is almost point-symmetrical with the parallel part 22 of the coaxial feeder 2 through the bending part 21. The combined length of the parallel part 22 of the coaxial feeder 2 and the linear conductor 3 is almost (2n-1)(λ/2), where n is an optional natural number andλis the wavelength of an applied radio wave. COPYRIGHT: (C)2006,JPO&NCIPI