A 240 GHz ultra-wideband FMCW radar system with on-chip antennas for high resolution radar imaging
A 240 GHz ultra-wideband FMCW radar system with on-chip antennas for high resolution radar imaging
复制标题
具有用于高分辨率雷达成像的片上天线的 240 GHz 超宽带 FMCW 雷达系统
DOI：
10.1109/mwsym.2013.6697495
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
N. Pohl
中科院分区：
文献类型：
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作者：
T. Jaeschke;C. Bredendiek;N. Pohl
目前，新兴的工业雷达应用需要高分辨率、高精度和低成本的雷达传感器。半导体技术的最新进展使频率高达数百GHz的高度集成雷达传感器能够大规模生产适合且具有成本效益的SiGe双极技术。在这篇贡献中，提出了一种基于SiGe mmic的240 GHz雷达传感器，带宽超过60GHz。它由包含高频元件的MMIC芯片和具有锁相环稳定、斜坡产生和数据采集功能的数字控制模块组成。该天线由片上贴片天线实现，贴片天线通过附加的介电透镜进行聚焦。该雷达允许从204 GHz到265 GHz的快速和高度线性频率扫描，最大输出功率≈-1dBm EIRP（仅贴片）。相位噪声<；-65 dBc/Hz （>1 kHz偏移）在整个调谐范围内实现。此外，还提供了距离轮廓，抖动和成像测量来演示所实现的系统性能。
Nowadays emerging industrial radar applications demand for high-resolution, high-precision and at the same time low-cost radar sensors. Recent advances in semiconductor technology allow highly integrated radar sensors at frequencies up to several hundred GHz in mass-production suitable and cost-effective SiGe bipolar technologies. In this contribution, a SiGe MMIC-based 240 GHz radar sensor with more than 60GHz bandwidth is presented. It consists of a MMIC chip including the high-frequency components and a digital control module with the PLL stabilisation, ramp generation, and data acquisition. The antenna is realized by on-chip patch antennas, which are focused by using an additional dielectric lens. The radar allows fast and highly linear frequency sweeps from 204 GHz to 265 GHz with an maximum output power of ≈ -1dBm EIRP (patch only). A phase noise of <;-65 dBc/Hz (>1 kHz offset) is achieved over the complete tuning range. Additionally range profile, jitter and imaging measurements are presented to demonstrate the achieved system performance.