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    • 5. 发明专利
    • Antenna-feeding circuit
    • 天线供电电路
    • JP2005204231A
    • 2005-07-28
    • JP2004010609
    • 2004-01-19
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • HAYASHI AKIHIKOHANNITA TOKUMITSUOE JUNZOKATO YOSHITAKA
    • H01Q1/50
    • PROBLEM TO BE SOLVED: To reduce radio wave radiation from the outer conductor of a coaxial cable 40 caused by current leakage due to unbalanced power feeding, by devising the arrangement of the coaxial cable in an antenna feeding circuit for feeding power to an antenna element, using the coaxial cable 40.
      SOLUTION: The coaxial cable 40 is arranged, while being held in an inverted S-shape so that a portion (a) of the coaxial cable 40 away from the feed point of the coaxial cable 40 to the antenna by a distance of a 1/2 transmission wavelength of the antenna and a portion (e) away from the feed point by the transmission wavelength of the antenna can be in parallel with each other.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了减少由于不平衡馈电引起的电流泄漏引起的同轴电缆40的外导体的电波辐射,通过设计用于馈电的天线馈电电路中的同轴电缆的布置 天线元件,使用同轴电缆40.解决方案:同轴电缆40被布置成同时保持为倒置的S形,使得同轴电缆40的部分(a)远离同轴电缆的馈电点 天线的电缆40与天线的1/2透射波长的距离和远离馈电点的部分(e)由天线的透射波长彼此平行。 版权所有(C)2005,JPO&NCIPI