公开(公告)号：US06392602B2

公开(公告)日：2002-05-21

申请号：US09821645

申请日：2001-03-29

申请人： Kazunari Kawahata ,  Shigekazu Ito ,  Atsuyuki Yuasa ,  Hisahi Akiyama

发明人： Kazunari Kawahata ,  Shigekazu Ito ,  Atsuyuki Yuasa ,  Hisahi Akiyama

IPC分类号： H01Q138

CPC分类号： H01Q9/0435 ,  H01Q1/243

摘要： A radiation electrode is formed on the upper face of the substantially columnar dielectric substrate. Feed electrodes for a fundamental mode and for a higher mode are formed on the side peripheral face of the dielectric substrate. Power is supplied through the respective feed electrodes to the radiation electrode via capacitive coupling. The radiation electrode has both of the functions in the fundamental and higher modes. Thus, the circular polarized wave antenna can be reduced in size. Furthermore, since a capacitive feeding system is employed as described above, the respective resonance frequencies in the fundamental and higher modes can be easily adjusted and set at predetermined frequencies. Also, the circularly polarized wave characteristics in the fundamental and higher modes can be easily enhanced, respectively.

摘要翻译： 辐射电极形成在基本上柱状电介质基片的上表面上。 在电介质基板的侧面形成有用于基模和高模的馈电电极。 通过电容耦合将功率通过相应的馈电电极提供给辐射电极。 辐射电极具有基本和更高模式的功能。 因此，可以减小圆偏振波天线的尺寸。 此外，由于如上所述采用电容馈电系统，所以可以容易地调整基准模式和较高模式的谐振频率并将其设置在预定频率。 此外，基本和更高模式的圆偏振波特性可以分别容易地增强。