76–81-GHz CMOS Transmitter With a Phase-Locked-Loop-Based Multichirp Modulator for Automotive Radar
- 4 March 2015
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Microwave Theory and Techniques
- Vol. 63 (4), 1399-1408
- https://doi.org/10.1109/tmtt.2015.2406071
Abstract
This paper presents the design of a linear frequency-modulated continuous-wave (FMCW) radar transmitter (TX) for automotive radar applications. The TX has a wide operating range from 76 to 81 GHz by employing a frequency-doubling architecture using an LC voltage-controlled oscillator operating at 38-40.5 GHz and a differential frequency doubler using a single transformer. A chirp generator is integrated into the TX, which provides various frequency chirp profiles with programmable chirp slope and sweep duration. The proposed CMOS FMCW TX can be applied to various modulation algorithms for multiple target detection and the avoidance of ghost targets. The TX is implemented using 65-nm CMOS technology. The chip size is 1.48 × 1.85 mm 2 . The measurement results shows a 76-81-GHz frequency range and 3-dBm output power while dissipating 320 mW. The phase-noise density of the TX is -83.33 dBm/Hz at an offset frequency of 1 MHz when the output frequency is 77 GHz.Keywords
This publication has 20 references indexed in Scilit:
- A 77-GHz CMOS Power Amplifier With a Parallel Power Combiner Based on Transmission-Line TransformerIEEE Transactions on Microwave Theory and Techniques, 2013
- A Transformer-Coupling Current-Reuse SiGe HBT Power Amplifier for 77-GHz Automotive RadarIEEE Transactions on Microwave Theory and Techniques, 2012
- Antenna Concepts for Millimeter-Wave Automotive Radar SensorsProceedings of the IEEE, 2012
- A 24-GHz CMOS UWB Radar Transmitter With Compressed PulsesIEEE Transactions on Microwave Theory and Techniques, 2012
- Determination of Sweep Linearity Requirements in FMCW Radar Systems Based on Simple Voltage-Controlled Oscillator SourcesIEEE Transactions on Aerospace and Electronic Systems, 2011
- A Fully-Integrated 77-GHz FMCW Radar Transceiver in 65-nm CMOS TechnologyIEEE Journal of Solid-State Circuits, 2010
- A 77 GHz 90 nm CMOS Transceiver for FMCW Radar ApplicationsIEEE Journal of Solid-State Circuits, 2010
- A 77-GHz FMCW MIMO Radar Based on an SiGe Single-Chip TransceiverIEEE Transactions on Microwave Theory and Techniques, 2009
- A Low-Power, High-Suppression V-band Frequency Doubler in 0.13 $\mu$m CMOSIEEE Microwave and Wireless Components Letters, 2008
- Range Doppler detection for automotive FMCW radarsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007