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Designing and testing the quadrafilar helical antenna

机译:设计和测试四股螺旋形天线

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Due to its approximately hemispherical radiation pattern, the quadrafilar helical antenna is commonly used in a wide variety of radio systems, especially in satellite communications. This paper is focused on appropriate design of this antenna in order to obtain the desired performance, like cardioid shaped radiation pattern and excellent circular polarization with a high axial ratio. Also, the antenna was examined numerically with 4NEC2 and tested in a radio laboratory.
机译:由于其四边形螺旋天线具有近似半球形的辐射方向图,因此通常用于各种无线电系统中,尤其是在卫星通信中。本文着重于该天线的适当设计,以获得所需的性能,例如心形辐射图和具有高轴向比率的出色圆极化。同样,用4NEC2对天线进行了数值检查,并在无线电实验室中进行了测试。

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