The receiving antenna is a 4-element array.
接收天线为四元阵。
The radiation element, the coupling probe and the feeding system were designed in details, as a result, an X-band 4-element array model was obtained.
阐述了矩形径向线馈电螺旋阵的工作原理，对辐射单元、耦合探针和馈电系统进行了详细设计，进而得到一个X波段4单元阵列天线模型。
The radiation element, the coupling probe and the feeding system were designed in details, as a result, an X-band 4-element array model was obtained.
阐述了矩形径向线馈电螺旋阵的工作原理，对辐射单元、耦合探针和馈电系统进行了详细设计，进而得到一个X波段4单元阵列天线模型。
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