| 引用本文: | 段宗明，刘明，吴博文，潘东方，王研，金微微，吴炎辉，徐骅，戴跃飞. 应用于智能驾驶的77GHz毫米波汽车雷达收发机芯片[J]. 雷达科学与技术, 2021, 19(2): 130-136.[点击复制] |
| DUAN Zongming, LIU Ming, WU Bowe, PAN Dongfang, WANG Yan，JIN Weiwei, WU Yanhui, XU Hua, DAI Yuefei. A 77GHz mm-Wave Radar Transceiver for Intelligent Driving Applications[J]. Radar Science and Technology, 2021, 19(2): 130-136.[点击复制] |
|
| 摘要: |
| 针对未来智能驾驶和无人驾驶对毫米波传感器多模式、多场景感知需求，设计并实现了一种77GHz多模毫米波雷达收发机芯片。芯片采用65nm CMOS工艺，集成了3路雷达发射机和4路接收机、调频连续波（FMCW）波形发生器、模数转换器以及高速数据接口等电路。利用交叉耦合中和电容技术提升了CMOS工艺上毫米波低噪声放大器、毫米波片上功放等电路性能，采用两点调制锁相环技术提升了FMCW信号带宽和调制速率。收发机的发射功率、波形样式、接收增益和带宽等参数具有较好的可配置性，满足未来多模式、小型化和低成本汽车雷达传感器需求。芯片测试结果显示，在76～81GHz频率范围内，接收机实现50dB的增益控制，最小噪声系数11dB，FMCW信号调频带宽达4.2GHz，调制速率达233MHz/μs，线性度优于0.1%，－45～+125℃全温范围内发射机典型输出功率大于13dBm。 |
| 关键词: 汽车雷达 CMOS收发机 毫米波收发前端 调频连续波 CMOS功放 |
| DOI：DOI:10.3969/j.issn.1672-2337.2021.02.002 |
| 分类号:TN432；TN958 |
| 基金项目:安徽省科技重大专项（No.16030901008) |
|
| A 77GHz mm-Wave Radar Transceiver for Intelligent Driving Applications |
|
DUAN Zongming, LIU Ming, WU Bowe, PAN Dongfang, WANG Yan，JIN Weiwei, WU Yanhui, XU Hua, DAI Yuefei
|
|
1. Anhui Province Engineering Laboratory for Antennas and Microwave, Hefei 230088, China;2. The 38th Research Institute of China Electronics Technology Group Corporation, Hefei 230088, China;3. University of Science and Technology of China (USTC), Hefei 230026, China;4. Chongqing Acoustic Photoelectric Co Ltd, Chongqing 400060, China
|
| Abstract: |
| A 77GHz multi-mode mm-wave radar transceiver is proposed for intelligent and autonomous driving. The transceiver consists of 3 transmitters, 4 receivers, FMCW synthesizer, ADCs and high-speed interface. The neutralization technique is applied to improve CMOS mm-wave PA and LNA performances. Meanwhile, a 2-point modulation PLL topology is proposed to enhance FMCW chirp bandwidth and chirp rate. In the frequency range of 76~81GHz, the receiver achieves a measured gain variation of 50dB and a minimum noise figure of 11dB. The FMCW synthesizer shows a maximum chirp bandwidth of 4.2GHz and chirp rate of 233MHz/μs with a linearity error of 0.1%. Moreover, the typical output power of the transmitter exceeds 13dBm at －45～+125℃. |
| Key words: automotive radar CMOS transceiver mm-wave TRX front-end frequency-modulated conti-nuous wave (FMCW) CMOS power amplifier |
