A Low-Power Wideband Transmitter Front-End Chip for 80 GHz FMCW Radar Systems With Integrated 23 GHz Downconverter VCO
- 11 July 2012
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 47 (9), 1974-1980
- https://doi.org/10.1109/jssc.2012.2201272
Abstract
A low-power FMCW 80 GHz radar transmitter front-end chip is presented, which was fabricated in a SiGe bipolar production technology ( fT=180 GHz, fmax=250 GHz ). Additionally to the fundamental 80 GHz VCO, a 4:1-frequency divider (up to 100 GHz), a 23 GHz local oscillator (VCO) with a low phase noise of -112 dBc/Hz (1 MHz offset), a PLL-mixer and a static frequency divider is integrated together with several output buffers. This chip was designed for low power consumption (in total <; 0.5 W, i.e., 100 mA at 5 V supply voltage), which is dominated by the 80 GHz VCO due to the demands for high output power (≈ 12 dBm) and low phase noise (minimum -97 dBc/Hz at 1 MHz offset) within the total wide tuning range from 68 GHz to 92.5 GHz (Δf = 24.5 GHz). Measurements of the double-PLL system at 80 GHz showed a low phase noise of -88 dBc/Hz at 10 kHz offset frequency.Keywords
This publication has 20 references indexed in Scilit:
- Investigation and reduction of frequency pulling in SiGe mm-wave VCOs at limited power consumptionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2010
- A 19GHz DRO downconverter MMIC for 77GHz automotive radar frontends in a SiGe bipolar production technologyPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008
- An area and phase noise improved 19-GHz down-converter VCO for 77-GHz automotive radar frontends in a SiGe Bipolar Production TechnologyPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008
- A Low-Voltage SiGe BiCMOS 77-GHz Automotive Radar ChipsetIEEE Transactions on Microwave Theory and Techniques, 2008
- Simultaneous Integration of SiGe High Speed Transistors and High Voltage Transistors2007 IEEE Bipolar/BiCMOS Circuits and Technology Meeting, 2006
- Fully integrated SiGe VCOs with powerful output buffer for 77-GHz automotive Radar systems and applications around 100 GHzIEEE Journal of Solid-State Circuits, 2004
- SiGe regenerative frequency divider operating up to 63 GHzElectronics Letters, 1999
- Design considerations for very-high-speed Si-bipolar IC's operating up to 50 Gb/sIEEE Journal of Solid-State Circuits, 1996
- 7.3-GHz dynamic frequency dividers monolithically integrated in a standard bipolar technologyIEEE Transactions on Microwave Theory and Techniques, 1988
- Fractional-Frequency Generators Utilizing Regenerative ModulationProceedings of the IRE, 1939