用于77 GHz汽车雷达的低旁瓣串联馈电微带天线阵列

2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI:10.1109/UCMMT45316.2018.9015643

Jia-Ye Xie, Jiexi Yin, Qi Wu, Haiming Wang

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引用次数: 0

摘要

设计了一种低旁瓣串联馈电微带线阵天线和一种工作频率为76 ~ 77 GHz的平面阵天线。线性阵列天线由12个微带贴片元件和1 / 4波长阻抗变压器组成。利用差分进化算法(DEA)对贴片单元宽度和单元间距进行优化，使E平面的副瓣电平较低。分别制作了两种天线的样机并进行了测量。在77 GHz时，线阵天线在E平面的测量增益为16.1 dBi，旁瓣电平(SLL)为- 20.5 dB，半功率波束宽度为8.4°。在77 GHz时，平面阵列天线的实测增益为22.8 dBi，在E面和H面分别为- 15.5 dB和- 17.1 dB。

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Low-Sidelobe Series-Fed Microstrip Antenna Array for 77 GHz Automotive Radar Applications

A low-sidelobe series-fed microstrip linear array antenna and a planar array antenna operating at 76-77 GHz are designed. The linear array antenna consists of 12 microstrip patch elements and a quarter of wavelength impedance transformer. By using the differential evolution algorithm (DEA), the widths of patch elements and the inter-element spacing are optimized, which results in a low sidelobe level in the E plane. Prototypes of the two antennas are fabricated and measured respectively. The measured gain of the linear array antenna is 16.1 dBi and the sidelobe level (SLL) is −20.5 dB in E plane with half power beam width (HPBW) of 8.4° at 77 GHz. The measured gain of the planar array antenna is 22.8 dBi and the SLL is −15.5 dB in E plane and −17.1 dB in H plane at 77 GHz.

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2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)

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