A CMOS 77-GHz Receiver Front-End for Automotive Radar

This paper presents the design of a receiver (Rx) front-end for automotive radar application operating at 76-77 GHz. The Rx employs a double conversion architecture, which consists of a five-stage low-noise amplifier (LNA), a sub-harmonic mixer (SHM), and a double-balanced passive mixer (PSM). By adopting this architecture, millimeter-wave frequency synthesizer design can be relaxed. In the LNA layout, the output of each stage is positioned close to the input of the follow stage, thus creating a LC resonance load. As a result, complex interstage matching networks is simplified. The SHM driven by a 38-GHz local oscillator (LO) is adopted to avoid push/pull effect and power consumption of the voltage-controlled oscillator. A PSM is utilized for the second conversion since it consumes no dc current and has low flickering noise. To connect the singled-ended LNA and SHM, a 77-GHz balun is designed; and for driving the SHM, two 38-GHz baluns and an in-phase/quadrature coupler to provide quadrature 38-GHz LO are designed. The proposed Rx is implemented in a 65-nm CMOS technology and measurement results show 16-dB voltage gain and 13-dB calculated noise figure while dissipating 23.5 mA from a black 1.2-V supply.

[1]  Gabriel M. Rebeiz,et al.  A Low-Power BiCMOS 4-Element Phased Array Receiver for 76–84 GHz Radars and Communication Systems , 2012, IEEE Journal of Solid-State Circuits.

[2]  E. Skafidas,et al.  A 60-GHz transceiver on CMOS , 2008, 2008 International Topical Meeting on Microwave Photonics jointly held with the 2008 Asia-Pacific Microwave Photonics Conference.

[3]  Christoph Scheytt,et al.  A Single-Ended Fully Integrated SiGe 77/79 GHz Receiver for Automotive Radar , 2008, IEEE Journal of Solid-State Circuits.

[4]  Behzad Razavi,et al.  Design of Analog CMOS Integrated Circuits , 1999 .

[5]  J.C. Leete,et al.  Analysis and Optimization of Current-Driven Passive Mixers in Narrowband Direct-Conversion Receivers , 2009, IEEE Journal of Solid-State Circuits.

[6]  Fan Zhang,et al.  A low-power 5-75-GHz common-gate subharmonic mixer in 65-nm CMOS , 2011, 2011 IEEE 11th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems.

[7]  Xin Wang,et al.  A 79-GHz Radar Sensor in LTCC Technology Using Grid Array Antennas , 2013, IEEE Transactions on Microwave Theory and Techniques.

[8]  M. Tiebout,et al.  A X-Band ${\rm I}/{\rm Q}$ Upconverter in 65 nm CMOS for High Resolution FMCW Radars , 2012, IEEE Microwave and Wireless Components Letters.

[9]  E. Skafidas,et al.  A 77 GHz CMOS low noise amplifier for automotive radar receiver , 2012, 2012 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).

[10]  E. Skafidas,et al.  A 60-GHz CMOS Transmit/Receive Switch , 2007, 2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium.

[11]  Yi-Jan Emery Chen,et al.  A 77-GHz CMOS Automotive Radar Transceiver With Anti-Interference Function , 2013, IEEE Transactions on Circuits and Systems I: Regular Papers.

[12]  Ke Wu,et al.  Size-reduction and band-broadening design technique of uniplanar hybrid ring coupler using phase inverter for M(H)MIC's , 1999 .

[13]  T.H. Lee,et al.  A 12 mW wide dynamic range CMOS front end for a portable GPS receiver , 1997, 1997 IEEE International Solids-State Circuits Conference. Digest of Technical Papers.

[14]  Viet-Hoang Le,et al.  A Passive Mixer for a Wideband TV Tuner , 2011, IEEE Transactions on Circuits and Systems II: Express Briefs.

[15]  T. Zwick,et al.  Millimeter-Wave Technology for Automotive Radar Sensors in the 77 GHz Frequency Band , 2012, IEEE Transactions on Microwave Theory and Techniques.

[16]  P. Chevalier,et al.  A Low-Voltage SiGe BiCMOS 77-GHz Automotive Radar Chipset , 2008, IEEE Transactions on Microwave Theory and Techniques.

[17]  Roc Berenguer,et al.  A Low Power 77 GHz Low Noise Amplifier With an Area Efficient RF-ESD Protection in 65 nm CMOS , 2010, IEEE Microwave and Wireless Components Letters.

[18]  E. A. Amerasekera,et al.  ESD in silicon integrated circuits , 1995 .

[19]  E. Skafidas,et al.  Issues in the Implementation of a 60GHz Transceiver on CMOS , 2007, 2007 IEEE International Workshop on Radio-Frequency Integration Technology.

[20]  Toshiya Mitomo,et al.  A 77 GHz 90 nm CMOS transceiver for FMCW radar applications , 2009, 2009 Symposium on VLSI Circuits.

[21]  William Shieh,et al.  5–75 GHz common-gate subharmonic mixer in 65 nm CMOS , 2010 .

[22]  E. Skafidas,et al.  60-GHz direct-conversion transceiver on 130-nm CMOS with integrated digital control interface , 2009, 2009 European Microwave Integrated Circuits Conference (EuMIC).

[23]  E. Skafidas,et al.  Issues in the Implementation of a 60 GHz Transceiver on CMOS , .

[24]  Seok-Kyun Han,et al.  Current-Reused Ultra Low Power, Low Noise LNA${+}$Mixer , 2009, IEEE Microwave and Wireless Components Letters.

[25]  L.P. Solie,et al.  Use of an SAW Multiplexer in FMCW Radar System , 1981, IEEE Transactions on Sonics and Ultrasonics.

[26]  Sang-Gug Lee,et al.  A low-power CMOS direct conversion receiver with 3-dB NF and 30-kHz flicker-noise corner for 915-MHz band IEEE 802.15.4 ZigBee standard , 2006 .

[27]  Tatsuya Hirose,et al.  A 77GHz transceiver in 90nm CMOS , 2009, 2009 IEEE International Solid-State Circuits Conference - Digest of Technical Papers.

[28]  Gabriel M. Rebeiz,et al.  75–85 GHz flip-chip phased array RFIC with simultaneous 8-transmit and 8-receive paths for automotive radar applications , 2013, 2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).

[29]  Jri Lee,et al.  A Fully-Integrated 77-GHz FMCW Radar Transceiver in 65-nm CMOS Technology , 2010, IEEE Journal of Solid-State Circuits.