A dielectric lens antenna feeding with microstrip patch antennas for 77GHz long range radar application

Hsiao-Ning Wang, Yen-Tse Huang, Shyh-Jong Chung
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引用次数: 5

Abstract

A dielectric lens antenna feeding with microstrip patch antennas for long range radar application is presented. Using the microstrip patch antenna to feed the lens antenna is easy to implement due to its simple and compact size. Besides, the lens antenna can be easily achieved high gain and low side lobes. To achieve broader field of view for the radar application, two feeding microstrip patch antennas are utilized, and each of which has 10 degree of half-power beamwidth covering field of view of 20 degree. The measurement peak gain, half-power beamwidth, and side-lobe level are 20.2 dBi, 9 degree, and -16 dB, respectively. The measurement results show the input impedance of the proposed lens antenna is well matched to 50 Ω. All the measurement and simulated results are in good agreement.
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用于77GHz远程雷达的微带贴片馈电介质透镜天线
提出了一种用于远距离雷达的微带贴片天线馈电介质透镜天线。采用微带贴片天线馈电透镜天线,由于其结构简单、结构紧凑,易于实现。此外,透镜天线可以很容易地实现高增益和低侧瓣。为了实现雷达应用的更宽视场,使用了两个馈电微带贴片天线,每个天线具有10度的半功率波束宽度,覆盖20度的视场。测量峰值增益、半功率波束宽度和旁瓣电平分别为20.2 dBi、9度和-16 dB。测量结果表明,该透镜天线的输入阻抗与50 Ω匹配良好。所有的测量结果与模拟结果吻合良好。
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