An 80 GHz Low-Noise Amplifier Resilient to the TX Spillover in Phase-Modulated Continuous-Wave Radars

An 80 GHz transmitter leakage cancellation circuit is implemented and integrated together with a low-noise amplifier (LNA) as part of a receiver front-end for a phase-modulated continuous-wave radar. The cancellation is achieved by subtracting a copy of the leakage signal from the received one at the output of the LNA. The system incorporates an analog feedback loop to adjust the amplitude of the leakage copy, as well as a vector modulator to adjust its phase. The proposed 80 GHz LNA with transmitter leakage cancellation is implemented in 28 nm CMOS technology and achieves a gain of 15.2 dB, NF of 5.5 dB, and IP1dB of -15.5 dBm while attenuating the transmitter leakage by 27.5 dB.

[1]  P. Heydari,et al.  A Single-Chip Dual-Band 22–29-GHz/77–81-GHz BiCMOS Transceiver for Automotive Radars , 2009, IEEE Journal of Solid-State Circuits.

[2]  J. Lange,et al.  Interdigitated Strip-Line Quadrature Hybrid , 1969 .

[3]  André Bourdoux,et al.  A 79 GHz Phase-Modulated 4 GHz-BW CW Radar Transmitter in 28 nm CMOS , 2014, IEEE Journal of Solid-State Circuits.

[4]  V. Aparin.  A new method of TX leakage cancelation in W/CDMA and GPS receivers , 2008, 2008 IEEE Radio Frequency Integrated Circuits Symposium.

[5]  Arpad L. Scholtz,et al.  A 79GHz SiGe-Bipolar Spread-Spectrum TX for Automotive Radar , 2007, 2007 IEEE International Solid-State Circuits Conference. Digest of Technical Papers.

[6]  S. Brebels,et al.  Impact of ADC clipping and quantization on phase-modulated 79 GHz CMOS radar , 2014, 2014 11th European Radar Conference.

[7]  V. Aparin,et al.  An integrated LMS adaptive filter of TX leakage for CDMA receiver front ends , 2005, 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium - Digest of Papers.

[8]  Reza Mahmoudi,et al.  A millimeter-wave tunable transformer-based dual-antenna duplexer with 50 dB isolation , 2014, Proceedings of the IEEE 2014 Custom Integrated Circuits Conference.

[9]  Jri Lee,et al.  A fully integrated 77GHz FMCW radar system in 65nm CMOS , 2010, 2010 IEEE International Solid-State Circuits Conference - (ISSCC).

[10]  Sungyong Jung,et al.  A CMOS Transmitter Leakage Canceller for WCDMA Applications , 2013, IEEE Transactions on Microwave Theory and Techniques.

[11]  John Vanderkooy,et al.  Comments on -Aspects of MLS Measuring Systems- and Author's Reply , 1995 .

[12]  Jeng-Han Tsai,et al.  A Digital-Calibrated Transmitter-to-Receiver Isolator in Radar Applications , 2012, IEEE Microwave and Wireless Components Letters.

[13]  Masaru Sato,et al.  A millimeter-wave CMOS low noise amplifier using transformer neutralization techniques , 2011, Asia-Pacific Microwave Conference 2011.

[14]  Arthur H. M. van Roermund,et al.  A 60 GHz Phase Shifter Integrated With LNA and PA in 65 nm CMOS for Phased Array Systems , 2010, IEEE Journal of Solid-State Circuits.

[15]  Davide Guermandi,et al.  An 80-GHz low noise amplifier resilient to the TX-spillover in phase-modulated continuous-wave radars , 2015, RFIC 2015.

[16]  Harish Krishnaswamy,et al.  A 4-bit ultra-wideband beamformer with 4ps true time delay resolution , 2005, Proceedings of the IEEE 2005 Custom Integrated Circuits Conference, 2005..

[17]  V. P. Trivedi,et al.  An RCP Packaged Transceiver Chipset for Automotive LRR and SRR Systems in SiGe BiCMOS Technology , 2012, IEEE Transactions on Microwave Theory and Techniques.

[18]  André Bourdoux,et al.  19.7 A 79GHz binary phase-modulated continuous-wave radar transceiver with TX-to-RX spillover cancellation in 28nm CMOS , 2015, 2015 IEEE International Solid-State Circuits Conference - (ISSCC) Digest of Technical Papers.

[19]  Eric A. M. Klumperink,et al.  19.2 A self-interference-cancelling receiver for in-band full-duplex wireless with low distortion under cancellation of strong TX leakage , 2015, 2015 IEEE International Solid-State Circuits Conference - (ISSCC) Digest of Technical Papers.

[20]  Jacques C. Rudell,et al.  An integrated CMOS passive transmitter leakage suppression technique for FDD Radios , 2014, 2014 IEEE Radio Frequency Integrated Circuits Symposium.

[21]  Lawrence E. Larson,et al.  An Active Transmitter Leakage Suppression Technique for CMOS SAW-Less CDMA Receivers , 2010, IEEE Journal of Solid-State Circuits.

[22]  Songcheol Hong,et al.  Tx Leakage Cancellers for 24 GHz and 77 GHz Vehicular Radar Applications , 2006, 2006 IEEE MTT-S International Microwave Symposium Digest.

[23]  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.

[24]  Lei Zhou,et al.  A Single-Chip Dual-Band 22-29-GHz/77-81-GHz BiCMOS Transceiver for Automotive Radars , 2009, IEEE J. Solid State Circuits.

[25]  Yuanxun Ethan Wang,et al.  A $Ka$-Band FMCW Radar Front-End With Adaptive Leakage Cancellation , 2006, IEEE Transactions on Microwave Theory and Techniques.

[26]  R. C. Frye,et al.  A 2-GHz quadrature hybrid implemented in CMOS technology , 2003 .

[27]  Davide Guermandi,et al.  A 79GHz variable gain low-noise amplifier and power amplifier in 28nm CMOS operating up to 125°C , 2014, ESSCIRC 2014 - 40th European Solid State Circuits Conference (ESSCIRC).