发明名称 METHOD AND ADJUSTING DIRECTION OF ANTENNA DURING INSTALLATION THEREOF
摘要 PROBLEM TO BE SOLVED: To determine an appropriate direction of an antenna easily and surely when the antenna is installed so that it may be directed to a source radiating a radio wave for communication or broadcasting. SOLUTION: When an antenna 1 is installed to be directed to a radio wave radiating source, a dielectric member 2 is located in front of the antenna 1, covering half the opening surface thereof, and the dielectric member 2 is made to have such a thickness that a radio wave transmitting from the source has a phase delay of half wavelength or odd-fold of the half wavelength to a radio wave passing not the dielectric member 2 but the air having the same thickness. The reception level by the antenna is observed while moving the antenna 1 and dielectric member 2 integrally and changing the direction of the antenna, thus adjusting and determining the appropriate direction of the antenna 1 so that the reception level thereof becomes zero.
申请公布号 JP2001345612(A) 申请公布日期 2001.12.14
申请号 JP20000162038 申请日期 2000.05.31
申请人 KOBE STEEL LTD 发明人 MANABE CHITAYOSHI;INOUE KOJI
分类号 H01Q3/02;H01Q1/12;(IPC1-7):H01Q1/12 主分类号 H01Q3/02
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