A 77-GHz FMCW Radar System Using On-Chip Waveguide Feeders in 65-nm CMOS

作者：Cui Chenglin; Kim Seong Kyun; Song Reem; Song Jae Hoon; Nam Sangwook; Kim Byung Sung

来源：IEEE Transactions on Microwave Theory and Techniques, 2015, 63(11): 3736-3746.

DOI：10.1109/TMTT.2015.2477343

• Automotive radar
• CMOS
• frequency multipliers
• millimeter-wave (mm-wave) packaging
• on-chip feeder

This paper presents a 77-GHz radar system using a transmitter (Tx) and receiver (Rx) integrated with on-chip waveguide feeders in 65-nm CMOS. The newly proposed on-chip waveguide feeder shows the insertion loss of about 2 dB and more than 30% bandwidth. Additionally, both the Tx and Rx are integrated with internal 10 frequency multipliers. Therefore, a radar system can be easily implemented without sensitive millimeter-wave packaging technology by mounting the Tx and Rx chips on the waveguide aperture. The interconnections for the low-frequency reference and baseband signals can be realized on the low-cost FR-4 printed circuit board. The radar system shows 9-dBm output power and 13-dB down-conversion gain from the waveguide port.

• 出版日期2015-11