| 摘要 |
PROBLEM TO BE SOLVED: To provide a dipole antenna device with a reflector which radiates the beam of a half which with horizontal intra-plane directivity equal with a conventional case and lowers the level of a side lobe in comparison with the conventional case in spite of its low production cost in comparison with the conventional case realized by decreasing the number of dipole antenna elements and decreasing the numbers of reflectors and phase shifters as a result of the decrease. SOLUTION: In the dipole antenna device with the reflector, two vertical polarization dipole antennas with reflector composed of dipole antenna elements 11 and 12 and semicylindrical reflector plates 21 and 22 erected parallel thereto for radiating the beam of a half width of 120°with horizontal intra-plane directivity are parallel installed symmetrically with respect to a main radiation direction and on the outside of both the dipole antennas, outer metal conductor poles 31 and 32 are parallel erected away from the dipole antennas. At the same time, an intermediate metal conductor pole 33 is parallel erected in the middle of both the dipole antennas. COPYRIGHT: (C)2003,JPO
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