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    • 181. 发明专利
    • Traveling wave antenna
    • 旅行波浪天线
    • JP2006041634A
    • 2006-02-09
    • JP2004214771
    • 2004-07-22
    • Ricoh Co Ltd株式会社リコー
    • HOSHI FUMIKAZU
    • H01Q13/08H01Q3/14H01Q9/40
    • PROBLEM TO BE SOLVED: To provide a broadband and downsized traveling wave antenna with a comparatively simple structure and ease of use without gain reduction in a horizontal direction or the like.
      SOLUTION: The traveling wave antenna 10 is provided with a radiation element 1, a ground conductor 2, and a dielectric body 3 for covering a part or all of an outer circumferential face of the radiation element 1. The outer surface 3a of the dielectric body 3 is formed in parallel with an equi-phase plane of a radio wave emitted from between the radiation element 1 and the ground conductor 2. Thus, reduction in the gain of the radio wave emitted from the traveling wave antenna 10 in the horizontal direction (XY plane) can be suppressed.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供一种结构相对简单且易于使用的宽带和小型行波天线,而在水平方向等上没有增益减小。 解决方案:行波天线10设置有辐射元件1,接地导体2和用于覆盖辐射元件1的外周面的一部分或全部的电介质体3.外表面3a 电介质体3与从辐射元件1和接地导体2之间发射的无线电波的等面平行地形成。因此,降低了从行波天线10发射的无线电波的增益 可以抑制水平方向(XY平面)。 版权所有(C)2006,JPO&NCIPI