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QFHA
- Product description:
Product introduction
C．C．Kilgus在1968年提出了谐振式四臂螺旋结构天线，它由四根螺旋臂组成，每根的长度为四分之一波长的整数倍。四根螺旋臂馈电端的电流幅度相等，相位依次相差90°它具有心形方向图、良好的前后比及优异的宽波束圆极化特性，十分适合用作卫星定位系统的接收天线
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