Publications (Books/Journals)


  • Co-editorship of book published by Elsevier "RF and mm-Wave Power Generation in Silicon"

  • Kaushik Sengupta, "High-performance THz power-generation and beamforming in CMOS,'' RF and mm-Wave power generation in silicon, Elsevier.

  • (Invited book chapter) Steve Bowers, Kaushik Sengupta, Kaushik Dasgupta, and Ali Hajimiri, "Self-healing for mm-wave power amplifiers" RF and MM-Wave Power Amplification in Silicon , Elsevier.

  • S.Venkatesh, X.Lu, H.Saeidi, and K.Sengupta, Nature Electronics, in press.

  • Z.Li, T.Sharma, C.Chappidi, and K.Sengupta," Transformer-based broadband mm-wave InP PA across 42-62 GHz with enhanced linearity and second harmonic engineering ," IEEE Microwave Theory and Techniques (TMTT) , in press.

  • X.Lu, C.Chappidi, X.Wu, and K.Sengupta,"Antenna Preprocessing and Element-Pattern Shaping for Multi-band mmWave Arrays: Multi-port Receivers and Antennas," IEEE J. Solid-State Circuits (JSSC) , Jun. 2020. link.

  • C.Chappidi, X.Lu, X.Wu, and K.Sengupta,"Antenna Preprocessing and Element-Pattern Shaping for Multi-band mmWave Arrays: Multi-port Transmitters and Antennas," IEEE J. Solid-State Circuits (JSSC) , Jun. 2020. link.

  • C.Chappidi, T.Sharma and K.Sengupta,"Multiport-Active Load-pulling for mm-Wave 5G Power Amplifiers: Bandwidth, Back-off Efficiency and VSWR Tolerance," special issue for 5G PAs in IEEE Transactions on Microwave Theory and Techniques, Jul. 2020. link.

  • (Invited paper) T. J. Smith, A. Broome, D. Stanley, J. Westberg, G. Wysocki and K. Sengupta, "A Hybrid THz Imaging System With a 100-Pixel CMOS Imager and a 3.25-3.50 THz Quantum Cascade Laser Frequency Comb," IEEE Solid-State Circuits Letters, vol. 2, no. 9, pp. 151-154, Sept. 2019. link.

  • X.Wu, H.Lu and K.Sengupta, ``Programmable terahertz chip-scale sensing interface with direct digital reconfiguration at sub-wavelength scales,'' Nature Communications 2019. link.

  • K.Sengupta, D.Mittleman and T.Nagatsuma, ``Advances in Terahertz Integrated Electronic and Hybrid Electronic-Photonic Systems,'' in Nature Electronics , Dec. 2018. link.

  • L.Hong, H.Li, H.Yang and K.Sengupta,``Integrated Copper-based Sub-wavelength Angle insensitive Nano-plasmonic Filters for Ultra-miniaturized Fluorescence Microarray in a 65-nm Digital CMOS Process,'' ACS. Photonics , Sept. 2018. link.

  • L.Hong, H.Li, H.Yang and K.Sengupta,``Nano-plasmonics and Electronics Co-integration in CMOS enabling a Pill-sized Multiplexed Fluorescence Microarray System,'' Biomedical Optics Express , Sept. 2018. link.

  • C.Chappidi and K.Sengupta, ``Broadband mm-Wave PAs with Simultaneous Back-off Efficiency enhancement across 30-55 GHz: A Multi-port Network Synthesis Approach,'' IEEE J. Solid-State Circuits (JSSC) , Sept. 2018. link.

  • X.Lu, L.Hong and K.Sengupta, ``Optical Physically Unclonable Functions using Process-Sensitive Sub-Wavelength Photonic Crystals in 65nm CMOS,'' IEEE J. Solid-State Circuits (JSSC) , Sept. 2018. link.

  • X.Wu and K.Sengupta, ``Single-chip Source-free Terahertz Spectroscope across 0.04-0.99 THz: Combining Sub-wavelength Near-field Sensing and Regression Analysis,'' Optics Express , Jan.2018. link.

  • (Invited) Lingyy Hong and Kaushik Sengupta, ``Fully Integrated Optical Spectrometer between 500nm-830nm in CMOS,'' IEEE Transactions on Biomedical Circuits and Systems-I (Special ISSCC issue), Dec, 2017. link.

  • Lingyu Hong, Hao Li, Haw Yang and Kaushik Sengupta, ``Fully Integrated Fluorescence Biosensors on-chip Employing Multi-functional Nanoplasmonic Optical Structures in CMOS, '' IEEE Journal of Solid-State Circuits , Sep. 2017. link.

  • Chandrakanth R.Chappidi and Kaushik Sengupta, ``Globally Optimal Matching Networks with Lossy Passives and Efficiency Bounds, '' IEEE Transactions on Circuits and Systems-I, Sept. 2017. link.

  • Chandrakanth Chappidi and Kaushik Sengupta, ``Frequency Reconfigurable mm-Wave Power Amplifier with Active Impedance Synthesis in an Asymmetrical Non-Isolated Combiner: Analysis and Design, '' IEEE Journal of Solid-State Circuits, Aug. 2017. link.

  • Xue Wu and Kaushik Sengupta, "Dynamic waveform shaping with pico-second time-widths," IEEE Journal Solid-State Circuits, Feb. 2017. link.

  • (Invited) Xue Wu and Kaushik Sengupta, ``On-Chip THz Spectroscope Exploiting Electromagnetic Scattering with Multi-port Antenna,'' special issue of ISSCC in IEEE Journal Solid-State Circuits, Dec. 2016. link.

  • Kaushik Sengupta and Ali Hajimiri, "Designing Optimal Surface Currents for Efficient On-Chip mm-Wave Radiators With Active Circuitry,'' IEEE Trans. Microw. Theory. Tech, 2016 link. .

  • Kaushik Sengupta and Ali Hajimiri, "Mutual Synchronization for Power Generation and Beam-steering in CMOS with on-chip Sense Antennas near 200 GHz" IEEE Trans. Microw. Theory. Tech. , Sept. 2015. link. .

  • Kaushik Sengupta, D.J.Seo, Lita Young and Ali Hajimiri, "Silicon Integrated 280 GHz Imaging Chipset With 4x4 SiGe Receiver Array and CMOS Source,''IEEE Trans. THz Science and Tech., vol.5, no. 3, pp. 427-437, May. 2015. (Top downloaded article in May 2015) link. .

  • (Invited paper) Kaushik Dasgupta, Kaushik Sengupta and Ali Hajimiri, "A mm-Wave Segmented Power Mixer", IEEE Trans. Microw. Theory. Tech. , vol. 63, no.4, pp. 1118-1129, Apr. 2015. link. .

  • (Invited) Steven Bowers, Kaushik Sengupta, Kaushik Dasgupta and Ali Hajimiri, "Integrated Self- healing for mm-Wave Power Amplifers", IEEE Trans. Microw. Theory. Tech. , vol. 61, no.3, pp, 1301 - 1315, Mar. 2013. (Awarded the 2015 IEEE Microwave prize for the best paper in IEEE Trans. Microw. Theory. Tech. in 2013) link. .

  • (Invited) Kaushik Sengupta and Ali Hajimiri, "A 0.28 THz Power-Generation and Beam-Steering Array in CMOS based on Distributed Active Radiators,'' IEEE Jour. Solid State Circuits (JSSC), Dec 2012 link. .

  • Kaushik Sengupta, T.K.Bhattacharyya, H.Hashemi, "A non-linear transient analysis of regenerative frequency dividers,'' IEEE Trans. Circuits & Systems-I, vol. 54, no. 12, December 2007 link. .

  • Kaushik Sengupta , K.J.Vinoy, ``A new measure of lacunarity for generalized fractals and its impact in the electromagnetic behavior of Koch dipole antennas,'' Fractals, World Scientific Publishing Company, December 2006, pp. 271-282.

Publications (Peer-reviwed Conference Papers)


  • C.Zhu, J.Maldonado, and K.Sengupta, IEEE ISSCC, Feb. 2021.

  • H.Saeidi, S.Venkatesh, X.Lu, and K.Sengupta, IEEE ISSCC, Feb. 2021.

  • (Invited) K.Sengupta, X.Lu, S.Venkatesh, and X.Wu, ``Terahertz to bits and bits to terahertz: universally programmable chip-scale terahertz systems'' ACM Nanocom, Sep. 2021.

  • K.Sengupta, X.Lu, S.Venkatesh, and B.Tang, ``Physically Secure mm-Wave Wireless Links with Spatio-temporal Modulated Arrays'' IEEE IWTS, Jul. 2020.

  • K.Sengupta, X.Lu, S.Venkatesh, and B.Tang, ``Spatio-Temporal Modulated Millimeter-wave Antenna Arrays for Secure Wireless Links'' IEEE APS/URSI, Jul. 2020.

  • K.Sengupta, X.Lu, S.Venkatesh, and B.Tang, ``Physically Secure mm-Wave Wireless Links with Spatio-temporal Modulated Arrays'' IEEE IWTS, Jul. 2020.

  • C.Zhe, Y.Wen, T.Liu, H.Yang, and K.Sengupta, ``A Packaged Ingestible Bio-pill with 15-pixel Multiplexed Fluorescence Nucleic-acid Sensor and Bi-directional Wireless Interface for In-vivo Bio-molecular Sensing'' IEEE VLSI Sumposium, Jun. 2020.

  • (Invited) K.Sengupta, X.Lu, S.Venkatesh, and B.Tang, ``Nano-optical CMOS Systems for Bio-molecular Sensing: In-vitro and In-vivo'' 2020 OSA Optical Sensors and Sensing Congress , Vancouver, Jun. 2020.

  • (Invited) K.Sengupta, X.Lu, S.Venkatesh, and B.Tang, International Conference on Communications (ICC), Dublin, Jun. 2020.

  • Z.Liu, T,Sharma, C. R. Chappidi, S. Venkatesh, and K. Sengupta, ``Transformer-based Broadband mm-Wave InP PA across 42-62 GHz with Enhanced Linearity and Second Harmonic Engineering,'' IEEE IMS, Jun. 2020.

  • T.Sharma, Z.Liu, C. R. Chappidi, H. Saeidi, S. Venkatesh, and K. Sengupta, ``Broadband PA Architectures with Asymmetrical Combining and Stacked PA cells across 50-70 GHz and 64-110 GHz in 250 nm InP '' IEEE IMS, Jun. 2020.

  • C. R. Chappidi, T.Sharma, Z.Liu, and K. Sengupta, ``Load Modulated Balanced mm-Wave CMOS PA with Integrated Linearity Enhancement for 5G applications '' IEEE IMS, Jun. 2020.

  • H. Saeidi, S. Venkatesh, C. R. Chappidi, T. Sharma, C. Zhu, and K. Sengupta, ``A 4x4 Distributed Multi-Layer Oscillator Network for Harmonic Injection and THz Beamforming with 14dBm EIRP at 416GHz in a Lensless 65nm CMOS IC'' IEEE ISSCC, Feb. 2020.

  • X.Lu*, S.Venkatesh*, B.Tang, and K.Sengupta, ``Space-Time Modulated 71-to-76GHz mm-Wave Transmitter Array for Physically Secure Directional Wireless Links'' IEEE ISSCC, Feb. 2020. (* equal contributer)

  • (Invited) K.Sengupta, ``Universal Terahertz Integrated Systems: Bridging the ‘THz’ and ‘Application’ Gap in the Next Decade'' IEEE International Microwave and RF conference (IMaRC), Mumbai, India, Dec. 2019.

  • (Invited) K.Sengupta, ``Towards Universality in Terahertz Chip-scale Systems'' International Photonics and OptoElectronics Meetings (POEM 2019), Wuhan, China, Nov. 2019.

  • (Invited) K.Sengupta, ``Chip-scale terahertz systems'' IEEE SPIE+Optics, San Diego Jul. 2019.

  • (Invited) K.Sengupta, ``Fluorescence-based Multiplexed Biomolecular Systems in mm-scale Optics-free CMOS Chip: Nanoplasmonics in Embedded Electronics'' Optical Sensors, San Jose, Jun. 2019.

  • C.Chappidi, X.Lu and K.Sengupta, ``A 26-42 GHz Broadband, Back-off Efficient and Vswr Tolerant CMOS Power Amplifier Architecture for 5G Applications'' VLSI Symposium on Circuits and Technology, Kyoto, Jun. 2019.

  • C.Zhu, L.Hong and K.Sengupta, ``An Ultra-low-power Wireless System with Integrated Optics-free 15-pixel Fluorescence Biosensor Array Acheving 28pJ/b Reception Energy Efficiency for Ingestible Bioelectronics Application,'' in IEEE IMS , Boston, Jun. 2019.

  • (Invited) K.Sengupta, ``Integrated Circuits for Terahertz Communication Beyond 100 GHz: Are We There Yet?'' IEEE ICC, , Shanghai, May. 2019.

  • X.Lu, X.Wu, H.Saeidi, and K.Sengupta, ``A Multi-Port Dual Polarized Antenna Coupled mm-Wave Receiver with Pattern Programmability and Capability of Passive Interferer Rejection,'' in IEEE CICC , Apr. 2019.

  • H.Tang, S.Venkatesh, Z.Lin, X.Lu, H.Saeidi, G.M. Rather, J.R. Bertino, C-Y Lin, M.Javanmard, and K.Sengupta, ``2D Magnetic Sensor Array for Real-time Cell Tracking and Multi-site Detection with Increased Robustness and Flow-rate,'' in IEEE CICC , Apr. 2019.

  • (Invited Keynote) Kaushik Sengupta, ``THz Silicon Systems-on-Chip: EM-Circuits-Systems Co-design Approach , '' invited keynote for IEEE IRMMW-THz , Cancun, Mexico. Aug'17.

  • X.Wu, H.Lu and K.Sengupta, ``A Programmable Active THz Electromagnetic Surface on-Chip for Multi-functional Imaging,'' IEEE Intl. Microw Symp. , Jun. 2018. (Best student paper finalist) .

  • X.Wu, H.Lu and K.Sengupta, ``Wide-band THz Spectroscope in Silicon THz Combining Sub-wavelength Near-field Sensing and Robust Regression Analysis,'' IEEE Intl. Microw Symp. , Jun. 2018.

  • (Invited) K.Sengupta, ``THz Silicon Systems on Chip: A Moore-Maxwell Approach,'' Progress in Electromagnetics Research (PIERS) , Aug. 2018.

  • (Invited) Ligyu Hong, Xuyang Lu and Kaushik Sengupta, ``Nano-optical Systems in CMOS, '' invited for IEEE Midwest Circuits and Systems Conference , Boston. Aug'17.

  • (Invited) K.Sengupta, ``mm-Wave and THz Active Electromagnetic Systems on Chip: Circuits-EM-Systems Codesign Approach,'' IEEE Antennas and Prop. Symp. , Jul. 2018.

  • K.Sengupta and X.Wu, ``Circuits-electromagnetics Co-design: A New Paradigm for Silicon-based THz Systems-on-chip,'' SPIE , Apr. 2018.

  • (Invited) L.Hong, X.Lu, and K.Sengupta, ``Nano-optics in CMOS, '' invited for IEEE Midwest Symposium of Circuits and Systems, Aug. 2017.

  • Chandrakanth Chappidi and Kaushik Sengupta, ``A Digitally Reconfigurable PA Architecture with Simultaneous Frequency and Back-off Progammability,'' IEEE RFIC, Jun. 2017.

  • Chandraknath Chappidi and Kaushik Sengupta, ``A W-Band SiGe Power Amplifier with Psat of 23 dBm and PAE of 16.8% at 95GHz''IMS , Jun. 2017.

  • Lingyu Hong and Kaushik Sengupta, ``CMOS-based Florescence Biosensor with Integrated Nanoplasmonic Filters''CLEO, May. 2017.

  • Xue Wu and Kaushik Sengupta, ``A Source-free Single-chip Terahertz Spectroscope through Sub-wavelength Sensing of Antenna Near-fields,''CLEO, May. 2017.

  • Xuyang Lu, Lingyu Hong and Kaushik Sengupta ``An integrated optical physically unclonable function using process-sensitive sub-wavelength photonic crystals in 65nm CMOS '' IEEE ISSCC, Feb. 2017 link.

  • Lingyu Hong and Kaushik Sengupta, `` Fully integrated optical spectrometer with 500-to-830nm range in 65nm CMOS'' IEEE ISSCC, Feb. 2017 link.

  • Xue Wu and Kaushik Sengupta, "A 40-to-330GHz synthesizer-free THz spectroscope-on-chip exploiting electromagnetic scattering,'' IEEE ISSCC, Feb. 2016 link.

  • Chandrakanth C.Reddy and Kaushik Sengupta, "A frequency-reconfigurable mm-Wave power amplifier with active-impedance synthesis in an asymmetrical non-isolated combiner,'' IEEE ISSCC, Feb. 2016 link. .

  • Xue Wu and Kaushik Sengupta, "Dynamic Waveform Shaping for Reconfigurable Radiated Periodic Signal Generation with Picosecond Time-widths," IEEE Custom Integrated Cir. Conf. (CICC), Sept. 2015.

  • Chandrakanth C.Reddy and Kaushik Sengupta, "Methods for Finding Globally Maximum-efficiency Impedance Matching Networks with Lossy Passives" IEEE Custom Integrated Cir. Conf. (CICC), Sept. 2015 (Best student paper finalist) .

  • Lingyu Hong, Simon McManus, Hao Li, and Kaushik Sengupta, "A Fully Integrated CMOS Fluorescence Biosensor with on-chip Nanophotonic Filter," IEEE VLSI Tech. Cir. Symp., June 2015. link. .

  • Xue Wu and Kaushik Sengupta, "Programmable Picosecond Pulse Generator in CMOS," IEEE Intl. Microwave Symp., May 2015. (Best Student Finalist) link. .

  • Kaushik Dasgupta, Kaushik Sengupta and Ali Hajimiri, "A 19.1 dBm Segmented Power- Mixer Based Multi-Gbps mm-Wave Transmitter in 32nm SOI CMOS", IEEE RFIC Symp.Dig. , June 2014 link. .

  • (Invited) Kaushik Sengupta, "Distributed active radiation: Terahertz power-generation and beam-steering in CMOS,'' European Conference on Antennas and Propagation , Gothenburg, Sweden, Apr. 2013. link. .

  • Kaushik Sengupta and Ali Hajimiri, "A 0.28 THz 4x4 power-generation and beamsteering array for THz applications,'' IEEE Intl. Solid-State Circuits Conference (ISSCC) , Feb 2012 link. .

  • Steven Bowers, Kaushik Sengupta, Kaushik Dasgupta and Ali Hajimiri, `A Fully-Integrated Self-Healing Power Amplier," IEEE RFIC Symp. Dig. , June 2012. (Best Student Paper Award, 1st prize) link. .

  • Kaushik Sengupta, Kaushik Dasgupta, Steve Bowers and Ali Hajimiri, "On-chip Sensing and Actuation Methods for Integrated Self-healing mm-Wave CMOS Power Amplier", IEEE Intl. Microwave Symp., June 2012 link. .

  • Kaushik Sengupta and Ali Hajimiri, "Distributed active radiation for THz signal generation,'' IEEE Intl. Solid-State Circuits Conference (ISSCC), Feb 2011 link. .

  • Kaushik Sengupta and Ali Hajimiri, "Sub-THz Beam-forming using Near-field Coupling of Distributed Active Radiator Arrays,'' IEEE RFIC Symp., June 2011 link. .

  • DJ Seo, Kaushik Sengupta and Ali Hajimiri, "Distributed Active Radiator Arrays for Efficient Doubling, Filtering and Beam-forming,'' Intl. Microwave Symp., June 2011 link. .

  • Kaushik Sengupta, D.J.Seo, and Ali Hajimiri, "A Terahertz Imaging Receiver in 0.13um SiGe BiCMOS Technology,'' Intl. Conf. Infrared, mm, THz Waves (IRMMW-THz) , Oct. 2011 link. .

  • Kaushik Sengupta and Ali Hajimiri, "A compact self-similar power combining topology,'' Intl. Microwave Symp., June 2010, pp. 244-247 link. .

  • Kaushik Sengupta, "Influence of Fractal Lacunarity on the Performance of Dipole Antennas with Generalized Koch Curves,'' Intl. Conf. on Applied Electromagnetics and Communications , World Scientific Publishing Company, October 2005, pp. 1-4.

Patents

  • Chandrakanth Chappidi and Kaushik Sengupta, ``Frequency and back-off reconfigurability in mm-wave power amplifiers,'' US Patent granted, US 10,063,191 B2, Aug. 2018.

  • Lingyu Hong and Kaushik Sengupta, ``Passive waveguide structures and integrated detection and/or imaging systems incorporating the same,'' US Patent granted, US, 9.568,619 B2, Feb. 2017.

  • Lingyu Hong and Kaushik Sengupta, continuing patent application, US, US20150253525A1.

  • Kaushik Sengupta, Chandrakanth Chappidi, Xue Wu and Xuyang Lu,``Transceiver and Antenna Programmability and Generalized MIMO Architectures,'' U.S. provisional patent filed.

  • Kaushik Sengupta and Ali Hajimiri, ``Traveling Wave Distributed Active Antenna Structures, High Frequency Power Generation and Quasi-Optical Filtering,'' US Patent granted, US 8,830,137 B2, Sept. 2014.

  • Kaushik Sengupta and Ali Hajimiri, ``Integrated terahertz imaging systems ,'' US Patent granted, US8658976 B2, Feb 25, 2014.

  • Kaushik Sengupta and Ali Hajimiri, ``Smart RF Lensing: Efficient, Dynamic and Mobile Wireless Power Transfer,'' PCT/US2013/069757, Pub. no.: WO2014075103 A1, Nov 12, 2013.

  • Kaushik Sengupta, Steven Bowers, Arthur H.Chang and Ali Hajimiri, ``Self-healing Power Amplifier: Methods and Apparatus,'' US Patent granted, US 8,319,549 B2, Nov. 27, 2012.

  • Steven Bowers, Kaushik Sengupta and Ali Hajimiri, ``Self Healing Technique for High Frequency Circuit,'' US Patent granted, US9325282B2, Apr. 26, 2016.

  • Kaushik Sengupta and Ali Hajimiri, ``Phase Contrast THz Imaging with Silicon-based Systems ,'' US provisional patent.

  • Kaushik, Dasgupta, Kaushik Sengupta and Ali Hajimiri, ``Distributed Active Transformer-based Power Mixing techniques for Highly Linear Power Amplifiers,'' US provisional patent.