Journal Papers

  • B. Govind, T. Tapen, A. Apsel. “Ultra-compact quasi-true-time-delay for boosting wireless channel-capacity”. In revision in Nature. 2023
  • Morgenstern, Carl W. and Rong, Yu and Herschfelt, Andrew and Molnar, Alyosha C. and Apsel, Alyssa B. and Landon and David G. and Bliss, Daniel W. “Analog-Domain Self-Interference Cancellation for Practical Multi-Tap Full-Duplex System: Theory, Modeling, and Algorithm”, IEEE Journal on Selected Areas in Communications, vol 41, issue 9, pp 2796-2807, September 2023.
  • Bukreyev, I.; Yüksel, H.; Ho, K.; Apsel, A. “PCO-Based BLE Mesh Accelerator”. Sensors 2022, 22, 5324. https://doi.org/10.3390/s22145324, July 10, 2022.
  • T. Tapen and A. Apsel, “Ultra-Wideband Frequency Synthesis Using the Compact Tunable Transmission Line (CTTL) for FMCW Radar and Software-Defined Radio” IEEE Transactions on Microwave Theory and Techniques, vol. 70, no. 7, pp. 3374-3384, July 2022, doi: 10.1109/TMTT.2022.3169511
  • E. Gonultas, S. Soni, A. Apsel, C. Studer, “Sample-Efficient Spatio-Spectral Whitespace Detection Using Least Matching Pursuit” IEEE Access, Print ISSN: 2169-3536 Online ISSN: 2169-3536 DOI:10.1109/ACCESS.2021.3117255 September 2021.
  • X. Li, P. Dang, J. Casamento, Z. Zhang, O. Afuye, A. Mei, A. Apsel, D. Schlom, D. Jena, D. Ralph, and H. Xing, “Spin-Orbit-Torque Field Effect Transistor (SOTFET): a New Magnetoelectric Memory”, Applied Physics Letters, vol. 116, issue 24, June 2020.
  • O. Afuye, X. Li, F. Guo, D. Jena, D. Ralph, A. Molnar, H. Xing, A. Apsel, “Modeling and Circuit Design of Associative Memories with Spin Orbit Torque FETs”, IEEE Journal of Exploratory Solid-State Computational Devices and Circuits, Print ISSN: 2329-9231 Online ISSN: 2329-9231 DOI:10.1109/JXCDC.2019.2952394, November 2019.
  • T.Tapen, H. Yüksel , Z. Boynton, A. Apsel, A. Molnar, “An Integrated, Software-Defined FDD Transceiver: Distributed Duplexing Theory and Operation”, IEEE Transactions on Circuits and Systems, Print ISSN: 1549-8328 Online ISSN: 1558-0806 Digital Object Identifier: 10.1109/TCSI.2019.2945134, December 2019.
  • A. Apsel, “A Simple Guide to Low Power Wireless for IoT and Medical Applications,” in IEEE Solid-State Circuits Magazine, DOI 10.1109/MSSC.2018.2867404, August 2018.
  • C. Dorta-Quinones, M.Huang, J. Ruelas, J. Delacruz, A. Apsel, B. Minch, M. Lindau “A Bidirectional-Current CMOS Potentiostat for Fast-Scan Cyclic Voltammetry Detector Arrays”, IEEE Transactions on Biomedical Circuits and Systems, 10.1109/TBCAS.2018.2828828, March 2018.
  • T. Tapen, Z. Boynton, H. Yuksel, A. Apsel, and A. Molnar, “The Impact of Phase Noise in N-Path Filters”, IEEE Transactions on Circuits and Systems, DOI 10.1109/TCSI.2017.2761260, 20 October 2017.
  • E. Gantsog and A. Apsel, “Theory and Demonstration of Noisy Oscillator Samplers for Clock Jitter and Phase Delay Measurement”, IEEE Transactions on Circuits and Systems, DOI 10.1109/TCSI.2017.2758339, 10 November 2017.
  • I. Bukreyev, C. Torng, W. Godycki, C. Batten, and A. Apsel, “Four Monolithically Integrated Switched-Capacitor DC-DC Converters with Dynamic Capacitance Sharing in 65-nm CMOS”, DOI 10.1109/TCSI.2017.2767585, 29 November 2017.
  • H. Yüksel, D. Yang, Z. Boynton, C. Lee, T. Tapen, A. Molnar, and A. Apsel, “A Wideband Fully Integrated Software-Defined Transceiver for FDD and TDD Operation”, IEEE Journal of Solid-State Circuits, vol. 52, no. 5, pp. 1274-1285, May 2017, doi: 10.1109/JSSC.2017.2650409.
  • Dorta-Quinones, R. Dokania, X. Wang, A. Apsel, M. Lindau, “A Wireless FSCV Monitoring IC with Analog Background Subtraction and UWB Telemetry” IEEE Transactions on Biomedical Circuits and Systems, Vol. 10, No. 2, April 2016.
  • I.Mukhopadyay, M. Mukadam, R. Narayanan, F. O’Mahony, and A. B. Apsel, “Dual-calibration Technique for Improving Static Linearity of Thermometer DACs”, IEEE Transactions on Very Large Scale Integration Systems, Vol. 24, No. 3, March 2016.
  • A.Apsel and E. Gantsog, “Global Synchronization and the Challenges of Building Network Awareness”, XRDS Crossroads, The ACM Magazine for Students, vol. 21, issue 4, December 2015.
  • B. Xiang, A. Kopa, Z. Fu, and A. Apsel “Author’s Reply to Comments on Theoretical Analysis and Practical Considerations for the Integrated Time-Stretching System Using Dispersive Delay Line (DDL)” IEEE Transactions on Microwave Theory and Techniques, vol. 61., no. 5, May 2013.
  • B. Xiang, X. Wang, and A. Apsel “A Reconfigurable Integrated Dispersive Delay Line (DDL) in 0.13 µm CMOS Process” IEEE Transactions on Microwave Theory and Techniques, Vol. 61, Issue: 7, July 2013.
  • M.Y. Mukadam, O. Gouveia-Filho, N. Kramer, and A. B. Apsel “A Low Power, Minimally Invasive Process Compensation Technique for sub-micron CMOS Amplifiers” IEEE Transactions on Very Large Scale Integration Systems, vol. 99, no. 1, Jan, 2013.
  • X.Y. Wang, R. K. Dokania, and A. B. Apsel “A Crystal-Less Self-Synchronized Bit-Level Duty-Cycled IR-UWB Transceiver System” IEEE Transactions on Circuits and Systems I, Vol. 60, no. 9, Sept. 2013
  • B. Xiang, A. Kopa, Z. Fu, and A. Apsel “Theoretical Analysis and Practical Considerations for the Integrated Time-Stretching System Using Dispersive Delay Line (DDL)” IEEE Transactions on Microwave Theory and Techniques, vol. 60., no. 11, Nov. 2012
  • X. Zhang, Bojiong Ni, I. Mukhopadhyay, and A. Apsel, “Improving Absolute Accuracy of Integrated Resistors with Device Diversification”, IEEE Transactions on Circuits and Systems II, vol. 59, no. 6, June 2012.
  • R. Dokania, X. Wang, S. Tallur, A. Apsel,”An ultra low power impulse radio for body-area-networks”,IEEE Transactions on Circuits and Systems-I, volume-58, issue-7, July 2011.
  • X. Wang, R. Dokania, A. Apsel, “PCO Based Synchronization for Ad-Hoc Duty-Cycled Impulse Radio Sensor Networks”, IEEE Sensors Journal(Special Issue on Cognitive Sensor Networks), volume-11, issue-3, March 2011.
  • B. Xiang, A. Kopa, A. Apsel, “A Novel On-chip Active Dispersive Delay Line (DDL) for Analog Signal Processing,” IEEE Microwave and Wireless Components Letters, accepted for publication, April 2010.
  • R. Dokania, X. Wang, S. Tallur, C. Dorta-Quinones, A. Apsel, “An Ultra-Low-Power Dual-Band UWB Impulse Radio,” IEEE Transactions on Circuits and Systems II, Vol. 57, No. 7, July 2010.
  • Z. Fu and A. Apsel, “A tool for power and phase noise optimization in frequency synthesizers,” Analog Integrated Circuits and Signal Processing, January 2010 DOI 10.1007/s10470-009-9447-y.
  • Manipatruni, S., Dokania, R., Schmidt, B., Droz, N., Poitras, C., Apsel, A. and Lipson, M. “Wide Temperature Range Operation of Micron-scale Silicon Electro-optic Modulators”, Optics Letters, Vol, 33, No. 19, Sept. 2008.
  • A. Kopa and A. B. Apsel, “Distributed Amplifier with Blue Noise Active Termination,” IEEE Microwave and Wireless Components Letters, vol. 18, no. 3, pp 203-205, March 2008
  • A. Pappu, X. Zhang, A. Harrison, and A. Apsel, “Process Invariant Current Source Design: Methodology and Examples”, IEEE Journal of Solid State Circuits, Vol. 42, No. 10, October 2007
  • N. Kirman, M. Kirman, R.K. Dokania, J. Martinez, A.B. Apsel, M.A. Watkins, and D.H. Albonesi, “On-chip Optical Technology in Future Bus-based Multicore Designs: Opportunities and Challenges,” IEEE Micro, Special Issue on the Top Picks from Microarchitecture Conferences, Vol. 27, No. 1, January/February 2007.
  • A. Pappu and A. Apsel, “Demonstration of Latency Reduction in Ultra-Short Distance Interconnections Using Optical Fanout”, IEEE Journal of Selected Topics in Quantum Electronics, Volume 12, Issue 6, Nov. 2006.
  • T. Yin, A. M. Pappu, A. Apsel, “Low Cost, High Efficiency and High Speed SiGe Phototransistors in Commercial BiCMOS”, IEEE Photonics Technology Letters, Volume 18, Issue 1, Jan. 1 2006.
  • A. Pappu and A. Apsel. “Analysis of Intra-Chip Electrical and Optical Fanout.” Applied Optics, Vol. 44, No. 30, Oct. 2005.
  • A. Apsel and A. Andreou. “A Low Power SOS CMOS Optoelectronic Receiver Using Low and High Threshold Devices”, IEEE Transactions on Circuits and Systems I, Vol. 52, No. 2, Feb. 2005.
  • D. Yan, A. Apsel, and A. Lal, “Fabrication and Electromechanical Characterization of SOI-based Micro-scanner,” Smart Materials and Structures, 14, 2005, pp. 775-784
  • A. Apsel, Z. Fu, and A. Andreou. “A 2.5 milliwatt SOS CMOS Optical Receiver for Chip-to-Chip Interconnect”, IEEE Journal of Lightwave Technology, Vol. 22, No. 9, Sept.2004.
  • D. Yan, A. Apsel, and J. Chen. “Fabrication of SOI Based Nano-Gratings for Moire Measurement Using Focused Ion Beam”. Sensors and Actuators A, 115, 2004, 60-66, May 2004.
  • J. Liu, Z. Kalayjianm, B. Reily, W. Chang, G. Simonis, A. Apsel, A. Andreou. “Multi-channel Ultra-thin Silicon on Sapphire Optical Interconnects”, IEEE Journal of Selected Topics in Quantum Electronics, Vol. 9, No. 2, March/April 2003.
  • A. Apsel and A. Andreou. “Analysis of data reconstruction efficiency using stochastic encoding and an integrating receiver”, IEEE Transactions on Circuits and Systems II, Vol. 8, Issue 10, Oct. 2001.
  • A. Apsel and A. G. Andreou. “A 5mW, Gigabit/s Silicon on Sapphire CMOS Optical Receiver”, IEE Electronics Letters, Vol. 37, No. 19, Sept. 13, 2001.
  • A.G. Andreou, Z. Kalayjian, A. Apsel, P. O. Pouliquen, R. A. Athale, G. Simonis, R. Reedy, “Hybrid Integration of Surface Emitting VCSEL’s with Ultra-thin Silicon on Sapphire (SOS) CMOS VLSI circuits”, IEEE Circuits and Systems Magazine, Vol. 1, Issue 3, third quarter 2001.