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    • 9. 发明授权
    • Antenna device and portable machine
    • 天线装置和便携式机器
    • US06771223B1
    • 2004-08-03
    • US10168530
    • 2002-06-28
    • Hideaki ShojiYasuhito ImanishiToru FukasawaHiroyuki Ohmine
    • Hideaki ShojiYasuhito ImanishiToru FukasawaHiroyuki Ohmine
    • H01Q124
    • H01Q1/243H01Q3/247H01Q9/0407H01Q21/24
    • An antenna device includes: a conductive board (3) having one end portion and the other end portion opposite the one end portion; a flat plate antenna(4, 18a, 18b, 19) mounted on the board (3) with a dielectric interposing therebetween wherein when feeding a current thereto to excite, a current also flows in said board (3); a first current direction change means (5a, 6, 6a, 6c, 7, 7a, 7c, 14a, 17a, 17c, 21a, 22a, 22b, 24a) changing a direction of the current flowing in the board (3) to a first direction when exciting the antenna (4, 18a, 18b, 19) and located on said one end portion of the board (3); and a second current direction change means (5b, 6, 6b, 6d, 7, 7b, 7d, 14b, 17b, 17d, 21b, 22c, 22d, 24b) changing a direction of the current flowing in the board (3) to a second direction different from the first direction when exciting said antenna (4, 18a, 18b, 19) and located on the other end portion of the board (3).
    • 天线装置包括:导电板(3),其具有一个端部,另一个端部与一个端部相对; 安装在基板(3)上的平板天线(4,18a,18b,19),介电介质介于其间,其中当馈送电流以激励时,电流也流过所述板(3); 将在板(3)中流动的电流的方向改变为a的第一电流方向改变装置(5a,6,6a,6c,7,7a,7c,14a,17a,17c,21a,22a,22b, 激励天线(4,18a,18b,19)并位于所述板(3)的所述一个端部上时的第一方向; 以及将在基板(3)中流动的电流的方向改变为第二电流方向改变装置(5b,6,6b,6d,7,7b,7d,14b,17b,17d,21b,22c,22d,24b) 当激励所述天线(4,18a,18b,19)并且位于所述板(3)的另一端部时,与所述第一方向不同的第二方向。