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Control of Power Dividing Ratio in Four-Way Power Divider for Feeding Microstrip Comb-Line Antenna

机译:馈电微带梳状线天线四路功率分配器中功率分配比的控制

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摘要

A one-input four-way power divider is developed for feeding circuit of a microstrip comb-line antenna. The four-way power divider is composed of two-stage tournament-configuration of three Y-junctions. To control the sidelobe level and beam width in radiation pattern of the array, the power dividing ratio is assigned for the four-way power divider. Required dividing ratio is designed by changing the line width to control the impedance. To take impedance matching at the connection parts of the Y-junctions, 1 /4-wavelength impedance-transformers are applied to the divider and taper structure is supplied at discontinuities. Four-comb-line antennas are designed and fabricated at 76.5 GHz. We evaluated sidelobe level and beam width by experiment to confirm the performance of the power divider.
机译:开发了一种单输入四路功率分配器,用于微带梳状线天线的馈电电路。四路功率分配器由三个Y形结点的两阶段锦标赛配置组成。为了控制阵列辐射图的旁瓣电平和波束宽度,将功率分配比分配给四路功率分配器。通过改变线宽来控制阻抗来设计所需的分频比。为了在Y结的连接部分进行阻抗匹配,将1/4波长阻抗变压器应用于分压器,并在不连续处提供锥形结构。四梳线天线的设计和制造频率为76.5 GHz。我们通过实验评估了旁瓣电平和波束宽度,以确认功率分配器的性能。

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