A 77-GHz 2T6R Transceiver With Injection-Lock Frequency Sextupler Using 65-nm CMOS for Automotive Radar System Application

• Published in: IEEE transactions on microwave theory and techniques Vol. 64; no. 10; pp. 3031 - 3048
• Main Authors: Yuan-Hung Hsiao, Yu-Chuan Chang, Ching-Han Tsai, Ting-Yi Huang, Aloui, Sofiane, Ding-Jie Huang, Yi-Hsin Chen, Ping-Han Tsai, Jui-Chih Kao, Yu-Hsuan Lin, Bo-Yu Chen, Jen-Hao Cheng, Tian-Wei Huang, Hsin-Chia Lu, Kun-You Lin, Ruey-Beei Wu, Shyh-Jong Chung, Huei Wang
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.10.2016; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Automotive engineering; Automotive radar; CMOS ICs; Electronics industry; Frequency synthesizers; injection-lock frequency multiplier; millimeter-wave (MMW) radar transceiver (TRX); Radar antennas; Radar detection; Vehicles; W-band
• ISSN: 0018-9480; 1557-9670
• DOI: 10.1109/TMTT.2016.2604304

In this paper, a CMOS multichannel transceiver (TRX) is proposed for angular identification in automotive car radar applications. Two transmitters (TXs) and six receivers (RXs) are placed on the same die using 65-nm CMOS technology with chip size 3.5 × 3 mm 2 . To generate a millimeter-wave (MMW) frequency-modulated continuous-wave signal, an injection-lock frequency sextupler cascaded a 1-to-8 Wilkinson power dividing network with wideband isolation is designed as the LO-chain to convert external source from 12.5-13.7 to 75-82.2 GHz for both the TXs and RXs. Each TX achieves above 11-dBm output power and the RXs achieve 30-dB conversion gain from 75 to 82 GHz, and the total power dissipation of whole chip is 1.43 W. Compared with other published multichannel TRXs in silicon germanium (SiGe) process, this paper demonstrates compatible performances and the potential of multichannel TRX using CMOS for MMW automotive car radar application.