BASE STATION ANTENNA DEVICE

摘要

PROBLEM TO BE SOLVED: To provide miniaturizable polarized wave diversity constitution for which a beam width within a horizontal plane is 60 deg. and an F/B (front back ratio) is high. SOLUTION: For this antenna device, a chevron-shaped horizontally polarized wave dipole antenna 2 provided with a power feeding point 21 with the distance of G1 is disposed to the center part of a vertically disposed main reflector 1, a chevron-shaped non power feeding element 5 is disposed on the opposite side of the main reflector 1 parallelly to it and vertical dipole antennas 61 and 62 and vertical non power feeding elements 71 and 72 on the opposite side of the main reflector 1 are disposed holding them there between. Side face reflectors 31 and 32 opened to an outer side are disposed at both side edges of the main reflector 1 and a sub reflector 4 is oppositely arranged on the opposite side of the dipole antenna 2 of the main reflector 1.