发明名称 |
BASE STATION ANTENNA DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To reduce null points in a base station antenna device for a sector and to unify a gain to the utmost with respect to each direction in the sector. SOLUTION: Many dipole antenna elements of the same size disposed in the state of an array are divided into plural blocks. Intervals among the dipole antenna elements in the block are equalized, and intervals among the dipole antenna elements between the blocks at least at one place is made different from intervals among the dipole antenna elements in the blocks.
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申请公布号 |
JP2001257527(A) |
申请公布日期 |
2001.09.21 |
申请号 |
JP20000070555 |
申请日期 |
2000.03.14 |
申请人 |
NTT DOCOMO INC |
发明人 |
SHINTAKU MASAYOSHI;EBINE YOSHIO |
分类号 |
H01Q21/30;H01Q21/08;H04B7/10;H04B7/26;(IPC1-7):H01Q21/30 |
主分类号 |
H01Q21/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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