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    • 100. 发明授权
    • Coaxial resonant slot antenna, a method of manufacturing thereof, and a
radio terminal
    • 同轴谐振槽天线,其制造方法和无线终端
    • US5914693A
    • 1999-06-22
    • US708563
    • 1996-09-05
    • Ken TakeiMikio KuwaharaHiroshi OkabeHiroshi KishidaKazuyuki HoriYoshitaka ImakadoTomonori Nomura
    • Ken TakeiMikio KuwaharaHiroshi OkabeHiroshi KishidaKazuyuki HoriYoshitaka ImakadoTomonori Nomura
    • H01Q1/24H01Q13/16H01Q13/10
    • H01Q1/243H01Q13/16
    • A coaxial resonant slot antenna having a novel structure is provided to further reduce the dimensions of radio terminals incorporating such an antenna. Also provided are a novel method of fabricating such a coaxial resonant slot antenna and a radio terminal having a novel structure using such a coaxial resonant slot antenna. An entire strip conductor is arranged inside a flat conductive cubic such that the strip conductor is insulated from the conductive cubic. A connection point between the strip conductor and a radio frequency transmission line is provided at a position about 1/4 of wavelength away from one end of the strip conductor. A slot is shaped into a narrow rectangle, a generally upside-down "U", or a generally upside-down "U" having another slot on each end. It is desired that the center slot crosses the strip conductor along the length thereof and in the height direction thereof, the distance between the ends being equivalent to about 1/2 of wavelength used. The radio terminal has a plurality of antennas associated with the present invention arranged on a plurality of surfaces and provides a connection mechanism for varying the number of antennas to be used in the talk mode and the standby mode.
    • 提供具有新颖结构的同轴谐振缝隙天线,以进一步减小结合这种天线的无线电终端的尺寸。 还提供了一种使用这种同轴谐振缝隙天线制造这种同轴谐振缝隙天线和具有新颖结构的无线电终端的新方法。 整个带状导体布置在平坦导电立方体的内部,使得带状导体与导电立方体绝缘。 带状导体和射频传输线之间的连接点设置在远离带状导体一端的距离为+ E,fra 1/4 + EE波长的位置处。 狭槽成形为一个狭窄的矩形,一般是倒置的“U”,或者在每一端有另一个槽的大体倒置的“U”。 期望中心狭槽沿着其长度和带状导体的高度方向与条形导体相交,端部之间的距离等于使用的波长的大约+ E,fra 1/2 + EE。 无线电终端具有布置在多个表面上的与本发明相关联的多个天线,并提供用于改变在通话模式和待机模式中要使用的天线数量的连接机构。