Millimetre-Wave FMCW MIMO Radar System Development using Broadband SIW Antennas
Millimetre-Wave FMCW MIMO Radar System Development using Broadband SIW Antennas
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使用宽带 SIW 天线的毫米波 FMCW MIMO 雷达系统开发
DOI：
10.1049/cp.2018.0532
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Alistarh C
中科院分区：
文献类型：
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作者：
Alistarh C
本文介绍了一种用于汽车防撞的新型毫米波雷达。该系统使用频率调制连续波（FMCW）传输的基础上多输入多输出（MIMO）基板集成波导（SIW）天线工作在K波段制度。在校准的电波暗室中，利用半λ间隔的四元基片集成波导（SIW）接收机阵列在4 m距离处对两个基片集成波导（SIW）天线通过时域多址（TDMA）发射的连续时域波进行了检测，并进行了仿真验证。SIW天线在水平面内的高带宽和全向性，以及用于实现MIMO虚拟阵列的数字波束成形，为雷达系统提供了130度的整体视场。此外，MIMO雷达实现了14度的角分辨率，并提供了10厘米的距离分辨率，总共只有6个发射器和接收器元件。
In this paper, a novel millimetre-wave radar for collision avoidance and automotive applications is presented. The system uses frequency modulated continuous-wave (FMCW) transmission based on multiple input multiple output (MIMO) substrate-integrate waveguide (SIW) antennas operating in the K-band regime. The continuous sawtooth time-domain wave transmitted from two SIW antennas, by time-domain multiple access (TDMA), is detected with a half-lambda spaced four-element SIW receiver array at a distance of 4 meters in a calibrated anechoic chamber and verified with simulations. The high bandwidth and omnidirectionality of the SIW antennas in the horizontal plane, together with digital-beamforming for the achieved MIMO virtual array, offers an overall field-of-view of 130 degrees for the radar system. Also, the MIMO radar achieves an angular resolution of 14 degrees and offers a range resolution of 10 cm at a cost of only 6 transmitter and receiver elements in total.