List of Publications

Journal papers

  1. Amit Mishra, Sankaran Aniruddhan and Sudip Shekhar, "Injection Locking in Switching Power Amplifiers", IEEE Access, vol. 8, 2020, pp 167555-167569. (paper)
  2. Madhavi Kadam, Abhishek Kumar and Sankaran Aniruddhan, "A 28 GHz Reflective-Type Transmission-Line-Based Phase Shifter", IEEE Transactions on Circuits and Systems I, Vol. 67, No. 12, December 2020. (paper)
  3. Ritabrata Bhattacharya, Vikas Aggarwal, Ashish Gupta, Taranjit Kukal and Sankaran Aniruddhan, "An 8-channel Varactor-Less 28GHz Front End with 7-bit resolution 340 deg RTPS for 5G RF Beamformers", IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II), Vol. 66, No. 12, December 2019. (paper)
  4. Prathamesh Khatavkar and Sankaran Aniruddhan, "432nW per Channel 130nV/rtHz ECG Acquisition Front-end with Multi-Frequency Chopping", IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Vol. 27, No. 9, September 2019. (paper).
  5. Arpan Thakkar, Srinivas Theertham, Peeyoosh Mirajkar and Sankaran Aniruddhan, "Techniques for Improved Continuous & Discrete Tuning Range in Millimeter Wave VCOs", IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 27, No. 3, March 2019. (paper)
  6. Harikumar Ganesan, Boby George and Sankaran Aniruddhan, "Design and Analysis of a Relaxation Oscillator Based Interface Circuit for LVDT", IEEE Transactions on Instrumentation & Measurement, Vol. 68, No. 5, May 2019. (paper)
  7. Harikumar Ganesan, Boby George, Sankaran Aniruddhan and Saleem Haneefa, "A Dual Slope LVDT-to-Digital Converter", IEEE Sensors Journal, vol. 19, No. 3, February 2019. (paper)
  8. Anantha MS, Abhishek Kumar and Sankaran Aniruddhan, "A Compact +10/+5dBm 800/2600MHz LTE Driver Amplifier with Ground-Bounce Reduction", IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II), vol. 66, No. 6, July 2019. (paper)
  9. Arpan Thakkar, Srinivas Theertham and Sankaran Aniruddhan, "Phase Noise Analysis of Bipolar Class-C VCOs with Delay in Oscillator Loop", IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Vol. 26, No. 12, December 2018. (paper)
  10. Ahmad Sharkia, Sankaran Aniruddhan, Shahriar Mirabbasi and Sudip Shekhar, "A Compact, Voltage-Mode Type-I PLL with Gain-Boosted Saturated PFD and Synchronous Peak Tracking Loop Filter", IEEE Transactions on Circuits and Systems I, Vol. 66, No. 1, January 2019. (paper)
  11. G. Vinodhini, Boby George, Sankaran Aniruddhan, J. Dhurga Devi and P.V. Ramakrishna, "Performance Analysis of Oscillator Based Read-out Circuit for LVDT", IEEE Transactions on Instrumentation & Measurement, , Vol. 68, No. 68, April 2019.(paper)
  12. Abhishek Kumar and Sankaran Aniruddhan, "A 2.5GHz CMOS Full-Duplex Front-End for Asymmetric Data Networks", IEEE Transactions on Circuits and Systems I, Vol. 65, No. 10, October 2018. (paper)
  13. Peeyoosh Mirajkar, Jagdish Chand, Sankaran Aniruddhan and Srinivas Theertham, "Low Phase Noise Ku-Band VCO With Optimal Switched-Capacitor Bank Design", IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 26, no.3, March 2018. (paper)
  14. Arjun Nadh, Joseph Samuel, Ankit Sharma, Sankaran Aniruddhan, and Radha Krishna Ganti, "A Taylor Series Approximation of Self-Interference Channel in Full-Duplex Radios", IEEE Transactions on Wireless Communications, vol. 16, no.7, July 2017. (paper)
  15. Sreenivasa Mallia S, Sreeram NS, Sudhir Adinarayana, and Sankaran Aniruddhan, "A Self-Powered 50Mbps OOK Transmitter for Opto-Isolator LED Emulation", IEEE Journal of Solid-State Circuits, vol. 52, no. 3, March 2017. (paper)
  16. Abhishek Kumar, Sankaran Aniruddhan, and Radha Krishna Ganti, "An Asymmetric 2.4 GHz Directional Coupler using Electrical Balance", IEEE Microwave and Wireless Component Letters, vol. 26, no. 12, December 2016. (paper)
  17. Gaurav Agrawal, Sankaran Aniruddhan, and Radha Krishna Ganti, "A Compact Mixer-First Receiver with >24dB Self-Interference Cancellation for Full-Duplex Radios", IEEE Microwave and Wireless Component Letters, vol. 26, no. 12, December 2016. (paper)
  18. Sankaran Aniruddhan, S. Shekhar and D.J. Allstot, "A CMOS 1.6 GHz Dual-Loop PLL with Fourth-Harmonic Mixing", IEEE Transactions on Circuits and Systems-I, Regular Papers, vol. 58, no. 5, May 2011. (paper)
  19. S. Shekhar, J.S. Walling, Sankaran Aniruddhan and D.J. Allstot, "CMOS VCO and LNA using Tuned-Input Tuned-Output circuits", IEEE Journal of Solid-state Circuits, vol. 43, no. 5, May 2008. (paper)
  20. D.J. Allstot, Sankaran Aniruddhan, M. Chu, J. Paramesh, and S. Shekhar, "Recent advances and design trends in CMOS radio frequency integrated Circuits", International Journal of High Speed Electronics and Systems (IJHSES), vol. 15, no. 2, pp. 377-428, June 2005. (paper)

Conference papers

  1. Vikas Aggarwal, Ritabrata Bhattacharya, Ashish Gupta, Sankaran Aniruddhan and Taranjit Kukal, "Comparison of Millimeter Quadrature VCOs for 28GHz 5G applications," 32nd International Conference on VLSI Design, New Delhi, India, 5-9 January 2019 (User-Design Track).
  2. Ritabrata Bhattacharya, Vikas Aggarwal, Ashish Gupta, Taranjit Kukal and Sankaran Aniruddhan, "A 28GHz, 7mW, 32dB Gain and 3.3dB NF, Gm-Boosted CG-CS LNA for 5G RF Beamformers," 2019 12th Global Symposium on Millimeter Waves (GSMM), Sendai, Japan, 22-24 May 2019.(paper)
  3. Ritabrata Bhattacharya, Sankaran Aniruddhan, Vikas Aggarwal, Ashish Gupta and Taranjit Kukal, "A 10mW, 26dB Gain, 28GHz Varactor Less Digital Front End with Near 360o 7 Bit Resolution RTPS for 5G RF Beamformers," 2019 IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, 26-29 May 2019 (Late Breaking News).
  4. A. Kumar and S. Aniruddhan, .A 2.35 GHz Cross-Talk Canceller for 2X2 MIMO Full-Duplex Wireless System,. in 2019 IEEE MTT-S International Microwave Symposium (IMS2019), Boston, USA, 2-7 June 2019.
  5. P.L.Ramasamy, G.Venkataramanan and S. Aniruddhan, .A Spectral Shaper Based Two-Tap RF Self-Interference Canceller for Full-Duplex Radios,. in 2019 IEEE MTT-S International Microwave Symposium (IMS2019), Boston, USA, 2-7 June 2019.
  6. Ram Krishna, A. Kumar, and S. Aniruddhan, .Single Ended and Differential Passive RF Impedance Tuners for 2.4 GHz ISM Band Applications,. 2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS), Dallas, Texas, USA, 4-7 August 2019.
  7. Vikas Aggarwal and Sankaran Aniruddhan, "A 1.1V 1.3GHz 4th order filter with feedforward miller compensation OPAMP for 5G Applications," 2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS), Dallas, Texas, USA, 4-7 August 2019 (Late Breaking News).
  8. Vikas Aggarwal, Ritabrata Bhattacharya, Ashish Gupta, Taranjit Kukal and Sankaran Aniruddhan, "A 27-29GHz Integer-N PLL with Quadrature phases for 5G applications," IEEE MTT-S International Microwave Conference on Hardware and System for 5G and Beyond (IMC-5G), Atlanta, USA, 15-16 August 2019.
  9. Ashish Gupta, Vikas Aggarwal, Ritabrata Bhattacharya, Taranjit Kukal and Sankaran Aniruddhan, "System Budget to System Realization . A 5G mm-wave Beamformer Perspective," 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA), Granada, Spain, 9-13 September 2019.
  10. Ritabrata Bhattacharya, Vikas Aggarwal, Ashish Gupta, Taranjit Kukal, Sankaran Aniruddhan and Ian Dennison, "System Budgeting to System realisation-A top down approach for a 5G mmWave Beamformer Receiver," IEEE 5G World Forum (IEEE 5GWF.19), Dresden, Germany, 30 September-2 October 2019.
  11. Ritabrata Bhattacharya, Alex Tiker, Ashish Gupta, Vikas Aggarwal, Taranjit Kukal and Sankaran Aniruddhan, "An 8 Way Power Combined 28GHz Direct Downconversion Receiver for 5G RF Beamformers," IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (IEEE COMCAS-2019), Tel Aviv, Israel, 4-6 November 2019 (to be presented).
  12. Abhishek Kumar, Radha Krishna Ganti and Sankaran Aniruddhan, "A Same-Channel Full-Duplex Receiver Using Direct RF Sampling," 2018 IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, 27-30 May 2018.
  13. Arpan Thakkar, Srinivas Theertham, Peeyoosh Mirajkar, Jagdish Chand Goyal and Sankaran Aniruddhan, "A 27.2GHz Bipolar LC-VCO using Class-C Biasing to Maximize Achievable F osc in 130nm BiCMOS", 2018 IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, 27-30 May 2018.
  14. Peeyoosh Mirajkar, Jagdish Chand Goyal, Sankaran Aniruddhan and Srinivas Theertham, "Low Phase Noise Ku-Band VCO with Reduced Frequency Drift Across Temperature", 2018 IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, 27-30 May 2018.
  15. Harikumar Ganesan, Boby George and Sankaran Aniruddhan, "A Relaxation Oscillator Based Interface Circuit for LVDT",", 2018 IEEE Instrumentation and Measurement Technology Conference (I2MTC), Houston, USA, 14-17 May 2018.
  16. Satyam Sinha, Abhishek Kumar and Sankaran Aniruddhan, .A Passive RF Impedance Tuner for 2.4 GHz ISM Band Applications., IEEE Wireless and Microwave Technology Conference (WAMICON 2018), Clearwater, Florida, 9-10 April 2018.
  17. Gaurav Agrawal and Sankaran Aniruddhan, "A Modified Bias Scheme for High-Gain Low-Noise Folded Cascode OTAs", 2017 IEEE Electron Devices and Solid-State Circuits Conference (EDSSC 2017), Hsinchu, Taiwan, 18-20th October, 2017.
  18. Ramakrishna Avula and Sankaran Aniruddhan, "Low-Voltage 0.5.3GHz Radio Receiver for Multiband Cellular Applications", 2017 IEEE Electron Devices and Solid-State Circuits Conference (EDSSC 2017), Hsinchu, Taiwan, 18-20th October, 2017.
  19. Arpan Thakkar, Apoorva Bhatia, Vikram Sharma, Srinivas Theertham and Sankaran Aniruddhan, "A 4-Port Inductor based Compact Dual-core VCO with Improved Phase Noise Performance", 2017 IEEE Electron Devices and Solid-State Circuits Conference (EDSSC 2017), Hsinchu, Taiwan, 18-20th October, 2017.
  20. Arpan Thakkar, Srinivas Theertham, Sankaran Aniruddhan, Peeyoosh Mirajkar and Jagdish Chand Goyal, "A 3.9 - 4.5GHz Class-C VCO with Accurate Current Injection Based on Capacitive Feedback", 2017 European Microwave Integrated Circuits Conference (EuMIC), Nuremberg, Germany, 8-13 October 2017.
  21. Saravanan K. and S. Aniruddhan, "Area Efficient Low Power Crystal Oscillator with Automatic Amplitude Control," 2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS), Boston, MA, USA, August 6th-9th, 2017.
  22. Vinodhini G., Sankaran Aniruddhan, Boby George, Dhurga Devi J. and Ramakrishna P.V., "A Simple and Efficient Oscillator Based Read-out Scheme for LVDT", 2017 IEEE Instrumentation and Measurement Technology Conference (I2MTC), Torino, Italy, 22-25 May 2017.
  23. Prathamesh Khatavkar and Sankaran Aniruddhan, "Ultra Low Power ECG Acquisition Front-end with Enhanced Common-Mode Rejection", 2016 IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS), Abu Dhabi, United Arab Emirates, 16-19 October 2016.
  24. Sankaran Aniruddhan, "A 0.6V 0.85mW Low Noise Amplifier for 5 GHz Wireless Sensor Networks", 2016 IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS), Abu Dhabi, United Arab Emirates, 16-19 October 2016.
  25. Arjun Nadh, Ankit Sharma, Sankaran Aniruddhan and Radha Krishna Ganti, "A Taylor series approximation technique for self-interference cancellation in full-duplex radios", 2016 Twenty Second National Conference on Communication (NCC).
  26. Aparna Girija and Sankaran Aniruddhan, "A compact dual-band 5dBm RF power amplifier for cellular applications", 2016 International Symposium on Circuits and Systems (ISCAS), Montreal, Canada, 22-25 May 2016.
  27. Anandha Ruban T T, Preetam Tadeparthy, Sankaran Aniruddhan, Vikram Gakhar, and Muthusubramanian Venkateswaran, "Optimal dynamic phase add/drop mechanism in multiphase DC-DC buck converters", 2016 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, USA, 20-24 March 2016.
  28. Ahmad Sharkia, Sankaran Aniruddhan, Sudip Shekhar, and Shahriar Mirabbasi, "A High-Performance, Yet Simple to Design, Digital-Friendly Type-I PLL ", 2015 IEEE Custom Integrated Circuits Conference (CICC), San Jose, USA, 28-30 September 2015
  29. Prathamesh Khatavkar and S. Aniruddhan, "552 nW per channel 79 nV/rtHz ECG Acquisition Front-end with Multi-Frequency Chopping," IEEE 2014 Biomedical Circuits and Systems Conference, Lausanne, Switzerland, 22-24 October 2014.
  30. Abhishek Kumar, S. Aniruddhan and Radha Krishna Ganti, "Directional Coupler with High Isolation Bandwidth using Electrical Balance," 2014 IEEE International Microwave Symposium, Tampa Bay, Florida, USA, 01-06 June 2014.
  31. Saravanan K. and S. Aniruddhan, "Replica Bias Scheme for Efficient Power Utilization in High-Frequency CMOS Digital Circuits," 2014 International Symposium on Circuits and Systems (ISCAS), Melbourne, Australia, 01-05 June 2014.
  32. Abhishek Kumar and S. Aniruddhan, "Ground-Bounce Reduction in Narrow-Band RF Front-Ends," 2014 International Symposium on Circuits and Systems (ISCAS), Melbourne, Australia, 01-05 June 2014.
  33. Gaurav Agrawal, S. Aniruddhan and Radha Krishna Ganti, "Multi-Band RF Time Delay Element Based on Frequency Translation", 2014 International Symposium on Circuits and Systems (ISCAS), Melbourne, Australia, 01-05 June 2014.
  34. S. Aniruddhan, "Quadrature generation techniques in CMOS relaxation oscillators", IEEE International Symposium on Circuits and Systems, 2012 (ISCAS), 20-23 May 2012, Seoul, South Korea.
  35. A. Cicalini, S. Aniruddhan, R. Apte, F. Bossu, O. Choksi, D. Filipovic, K. Godbole, T.P. Hung, C. Komninakis, D. Maldonado, C. Narathong, B. Nejati, D. O'Shea, X. Quan, R. Rangarajan, J. Sankaranarayanan, A. See, R. Sridhara, B. Sun, W. Su, K. van Zalinge, G. Zhang and K. Sahota, "A 65nm CMOS SoC with embedded HSDPA/EDGE transceiver, digital baseband and multimedia processor", Proceedings of the IEEE International Solid State Circuits Conference, 2011 (ISSCC 2011), February 2011, San Francisco, USA.
  36. D. J. Allstot, S. Aniruddhan, M. Chu, N.M. Neihart, D. Ozis, S. Shekhar, and J. S. Walling, "Low Phase Noise CMOS Voltage-controlled Oscillators" (Invited paper) ASICON 2007, Guilin, China, October 26-29, 2007.
  37. S. Shekhar, S. Aniruddhan and D.J. Allstot, "A Tuned-Input Tuned-Output VCO in 0.18µm CMOS","IEEE RFIC Symposium 2007, Digest of Papers, 3-5 June 2007, Honolulu, HI, USA, Pages: 607-610.
  38. S. Aniruddhan, S. Shekhar, D.J. Allstot, "A Delay Generation Technique for Fast-locking Frequency Synthesizers", IEEE International Symposium on Circuits and Systems, 2006 (ISCAS), 21-24 May 2006, Island of Kos, Greece.
  39. S. Shekhar, S. Aniruddhan and D.J. Allstot, "A Fully-Differential CMOS Clapp VCO for IEEE 802.11a Applications", IEEE International Symposium on Circuits and Systems, 2006 (ISCAS), 21-24 May 2006, Island of Kos, Greece.
  40. D.J. Allstot, S. Aniruddhan, G. Banerjee, M. Chu, X. Li, J. Paramesh, S. Shekhar and K. Soumyanath, "Circuit Techniques for CMOS Multiple-Antenna Transceivers", IEEE RFIC Symposium 2005, Digest of Papers, (Invited Paper), 11-14 June 2005, Long Beach, CA, USA, Pages: 225-228.
  41. S. Aniruddhan and D.J. Allstot, "Architectural Issues in Base-Station Frequency Synthesizers", IEEE International Symposium on Circuits and Systems, 2005 (ISCAS), 23-26 May 2005, Kobe, Japan, Pages: 6034-7.
  42. S. Aniruddhan, M. Chu and D.J. Allstot, "A lateral-BJT-biased CMOS voltage-controlled oscillator", proceedings of the IEEE International Symposium on Circuits and Systems, 2004 (ISCAS), 23-26 May 2004, Pages: I - 976-9, Vol.1

Granted US Patents

  1. P. N. Mirajkar, J. C. Goyal and S. Aniruddhan, "Phase frequency detector (PFD) circuit with improved lock time," US Patent # 8,929,840, Granted November 22, 2016.
  2. S. Aniruddhan, C. Narathong, S. Sridhara, R. Sridhara, G.S. Sahota, F. Bossu and O.M. Choksi, "Local Oscillator Buffer and Mixer Having Adjustable Size," US Patent # 8,929,840, Granted January 6, 2015.
  3. Y.Feng, S. Aniruddhan and R. Rangarajan, "Capacitive multiplication in a phase locked loop," US Patent # 8,629,700, Granted January 14, 2014.
  4. S. Aniruddhan, C. Narathong, R. Sridhara and B. Nejati, "Linear and Polar Dual Mode Transmitter Circuit," US Patent # 8,599,938, Granted December 3, 2013.
  5. B. Sun and S. Aniruddhan, "Amplifier with Dynamic Bias," US Patent # 8,552,803, Granted October 8, 2013.
  6. C. Narathong and S. Aniruddhan, "Multi-mode Configurable Transmitter Circuit," US Patent # 8,099,127, Granted January 17, 2012.
  7. C. Narathong, S. Aniruddhan and W. Su, "Amplifier with Gain Expansion Stage," US Patent # 8,035,443, Granted October 11, 2011.
  8. B. Sun, S. Aniruddhan and S. Sridhara, "Method and Apparatus for Divider Unit Synchronization," US Patent # 7,965,111, Granted June 21, 2011.
  9. S. Aniruddhan, B. Sun, A. Jayaraman and G.S. Sahota, "Mixer with High Output Power Accuracy and Low Local Oscillator Leakage," US Patent # 7,941,115, Granted May 10, 2011.
  10. C. Narathong and S. Aniruddhan, "Techniques for improving Balun Loaded-Q," US Patent # 7,863,986, Granted January 04, 2011.

Filed Indian Patents

  1. Abhishek Kumar, S. Aniruddhan and Radha Krishna Ganti, "A Polarized Antenna Based Full Duplex Radio Front-End Using Electrical Balance," Filed 20 September, 2017 (Indian Patent Application # TEMP/E-1/34052/2017-CHE).
  2. Radha Krishna Ganti and S. Aniruddhan, "A method for eliminating a self-interference in a full duplex wireless communication system," Filed 26 December, 2014 (Indian Patent Application # 6593/CHE/2014).
  3. Abhishek Kumar, S. Aniruddhan and Radha Krishna Ganti, "A distributed circuit for cancelling self-interference in a full duplex communication system using electrical balance," Filed 21 March, 2014 (Indian Patent Application # 1511/CHE/2014).
  4. G. Sujan Kumar and S. Aniruddhan, "Signal acquisition using a Multi-Frequency chopping in a single circuitry," Filed 29 January, 2014 (Indian Patent Application # 400/CHE/2014).
  5. Gaurav Agrawal and S. Aniruddhan, "Compact RF phase shifters based on frequency translation," Filed 27 September, 2013 (Indian Patent Application # 4391/CHE/2013).

Book Chapters

  1. D. Allstot, S. Aniruddhan, M. Chu, J. Paramesh, and S. Shekhar, "Recent advances and design trends in CMOS radio frequency integrated circuits", in Design of High Speed Communication Circuits, World Scientific Publishing Company, Jan. 2006. ISBN 981-256-590-6.