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Advanced RF and Mixed-signal Application Group Publications

Referred Journals

  1. M.A. Mokri et al., “A Compact Single-ended Common-base Doherty PA in 90-nm BiCMOS with 37.3% Peak PAE for 5G Beamforming Arrays” has been accepted into IEEE Transactions on Microwave Theory and Techniques.
  2. M.A. Hoque et al.,  “A Triple-band, High DC-to-RF Efficiency, Multi-core VCO with a Dual-path Inductor and Mode-Switching Capacitor ” has been accepted into IEEE Transactions on Microwave Theory and Techniques.
  3. M. A. Mokri, S. Miraslani, M. A. Hoque and D. Heo, “A Dual-Path Transformer-Based Multiband Power Amplifier for mm-Wave 5G Applications,” in IEEE Journal of Solid-State Circuits, vol. 59, no. 6, pp. 1643-1655, June 2024.
  4. Dipan Kar, Soumen Mohapatra, Amin Hoque and Deukhyoun Heo, “A 14 GHz Integer-N Sub-Sampling PLL with RMS-jitter of 85.4 fs occupying an Ultra Low Area of 0.0918 mm” accepted in the IEEE Transactions on Circuits and Systems I: Regular Papers.
  5. S. Mohapatra et al., “Low Power Process and Temperature Invariant Constant Slope-and-Swing Ramp-based Phase Interpolator”, in IEEE Journal of Solid-State Circuits, pp. 1-10, 2023.
  6. M. A. Hoque et al., “Highly efficient multi-band harmonic-tuned GaN RF synchronous rectifier” in IEEE Transactions on Microwave Theory and Techniques, 2023.
  7. Z. Zhou et al., “An Inductor-First Single-Inductor Multiple-Output Hybrid DC–DC Converter With Integrated Flying Capacitor for SoC Applications,” in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 69, no. 12, pp. 4823-4836, Dec. 2022, doi: 10.1109/TCSI.2022.3198389.
  8. V. Boljanovic et al., “Fast Beam Training With True-Time-Delay Arrays in Wideband Millimeter-Wave Systems,” in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 68, no. 4, pp. 1727-1739, April 2021, doi: 10.1109/TCSI.2021.3054428
  9. P. Agarwal, M. Chahardori and D. Heo, “A New Boosted Active-Capacitor With Negative-Gm for Wide Tuning Range VCOs,” in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 68, no. 3, pp. 1080-1090, March 2021, doi: 10.1109/TCSI.2020.3043405.
  10. N. Tang, W. Hong, B. Nguyen, Z. Zhou, J. -H. Kim and D. Heo, “Fully Integrated Switched-Inductor-Capacitor Voltage Regulator With 0.82-A/mm2 Peak Current Density and 78% Peak Power Efficiency,” in IEEE Journal of Solid-State Circuits, vol. 56, no. 6, pp. 1805-1815, June 2021, doi: 10.1109/JSSC.2020.3036394.
  11. S. Gopal, S. Das, P. P. Pande, and D. Heo, “A Hybrid 3D Interconnect With 2x Bandwidth Density Employing Orthogonal Simultaneous Bidirectional Signaling for 3D NoC,” in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 67, no. 11, pp. 3919-3932, Nov. 2020, doi: 10.1109/TCSI.2020.3013092.
  12. E. Ghaderi, A. S. Ramani, A. A. Rahimi, D. Heo, S. Shekhar, and S. Gupta, “Four-Element Wide Modulated Bandwidth MIMO Receiver With >35-dB Interference Cancellation,” in IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 9, pp. 3930-3941, Sept. 2020, doi: 10.1109/TMTT.2020.2986441.
  13. W. Hong, Z. Zhou, B. Nguyen, N. Tang, J. Kim, P. Pande, and D. Heo, “Analysis and Design Method of Multiple-Output Switched-Capacitor Voltage Regulators With a Reduced Number of Power Electronic Components,” in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 67, no. 9, pp. 3234-3247, Sept. 2020, doi: 10.1109/TCSI.2020.2989152.
  14. A.I. Arka, S. Gopal, J.R. Doppa, D. Heo and P. P. Pande “Making a Case for Partially Connected 3D NoC: NFIC versus TSV” in ACM Journal on Emerging Technologies in Computing Systems (JETC), vol. 16, no. 4, Aug. 2020. doi: https://doi.org/10.1145/3394919
  15. W. Hong, B. Nguyen, Z. Zhou, N. Tang, J. Kim, P. P. Pande, and D. Heo, “A Dual-Output Step-Down Switched-Capacitor Voltage Regulator With a Flying Capacitor Crossing Technique for Enhanced Power Efficiency,” in IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 27, no. 12, Aug. 2019. doi: 10.1109/TVLSI.2019.2930892 
  16. B. Nguyen, N. Tang, Z. Zhou, W. Hong,  and D. Heo, “Clock-Voltage Co-regulator with Adaptive Power Budget Tracking for Robust Near-Threshold-Voltage Sequential Logic Circuits,” in IEEE Trans. Circuits Systems – 1: Reg. Pap. (early access), Nov. 2019. doi: 10.1109/TCSI.2019.2948944. 
  17. E. Ghaderi, A. Ramani, A. Rahimi, D. Heo, S. Shekhar, and S. Gupta, “An Integrated Discrete-Time Delay-Compensating Technique for Large-Array Beamformers,” in IEEE Trans. Circuits Systems – 1: Reg. Pap., vol. 66, no. 9, Aug. 2019. doi: 10.1109/TCSI.2019.2926309.
  18. S. N. Ali, P. Agarwal, S. Gopal, and D. Heo, “Transformer-Based Predistortion Linearizer for High Linearity and High Modulation Efficiency in mm-Wave 5G CMOS Power Amplifiers,” in IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 7, July 2019. doi: 10.1109/TMTT.2019.2914900.
  19. J. Baylon, P. Agarwal, L. Renaud, S. Ali, D. Heo, “A Ka-Band Dual-Band Digitally-Controlled Oscillator with -195.1 dBc/Hz FoMT Based on a Compact High-Q Dual-Path Phase-Switched Inductor” in IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 7, July 2019. doi: 10.1109/TMTT.2019.2917671.
  20. L. Renaud, J. Baylon, S. Gopal, M. A. Hoque, and D. Heo, “Analysis of Systematic Losses in Hybrid Envelope Tracking Modulators,” in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 66, no. 4, April 2019. doi: 10.1109/TCSI.2018.2883531.
  21. N. Tang, Y. Tang, Z. Zhou, B. Nguyen, W. Hong, P. Zhang, J. H. Kim and D. Heo, “Analog-Assisted Digital Capacitor-Less Low-Dropout Regulator Supporting Wide Load Range,” in IEEE Transactions on Industrial Electronics, vol. 66, no. 3, March 2019. doi: 10.1109/TIE.2018.2840492.
  22. S. N. Ali, P. Agarwal, S. Gopal, S. Mirabbasi and D. Heo, “A 25-35 GHz Neutralized Continuous Class-F CMOS Power Amplifier for 5G Mobile Communications Achieving 26% Modulation PAE at 1.5 Gb/s and 46.4% Peak PAE,” in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 66, no. 2, Feb. 2019. doi: 10.1109/TCSI.2018.2860019.
  23. S. Gopal, S. Das, P. Agarwal, S. N. Ali, D. Heo, and P. P. Pande, “High-Performance and Small-Form Factor Near-Field Inductive Coupling for 3-D NoC,” in IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 26, no. 2, Dec. 2018. doi: 10.1109/TVLSI.2018.2865704.
  24. J. Baylon, X. Yu, S. Gopal, R. Molavi, S. Mirabbasi, P. Pande and D. Heo, “A 16-Gb/s Low-Power Inductorless Wideband Gain-Boosted Baseband Amplifier With Skewed Differential Topology for Wireless Network-on-Chip,” in IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 26, no. 11, pp. 2406-2418, Nov. 2018. doi: 10.1109/TVLSI.2018.2856890. 
  25. [Popular article] S. Gopal, P. Agarwal, J. Baylon, S. N. Ali, L. Renaud, P. Pande and D. Heo, “A Spatial Multi-bit Sub-1V Time-Domain Matrix Multiplier Interface for Approximate Computing in 65nm CMOS,” in IEEE Journal on Emerging and Selected Topics in Circuits and Systems, vol. 8, no. 3, pp. 506-518, Sept. 2018, doi: 10.1109/JETCAS.2018.2852624.
  26. [Popular article] S. N. Ali, P Agarwal, L. Renaud, R. Molavi, S. Mirabbasi, P. Pande, D. Heo, “A 40% PAE Frequency Reconfigurable CMOS Power Amplifier with Tunable Gate-Drain Neutralization for 28-GHz 5G Radios,” in IEEE Transactions on Microwave Theory and Techniques, Vol 66, No. 5, May 2018, doi.org/10.1109/TMTT.2018.2801806
  27. P. Agarwal, J. H. Kim, P. P. Pande and D. Heo, “Zero-Power Feed-Forward Spur Cancelation for Supply-Regulated CMOS Ring PLLs,” in IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. PP, no. 99, pp. 1-10.
  28. B. Nguyen, N. Tang, W. Hong, Z. Zhou and D. Heo, “High-Efficiency Fully Integrated Switched-Capacitor Voltage Regulator for Battery-Connected Applications in Low-Breakdown Process Technologies,” in IEEE Transactions on Power Electronics, vol. 33, no. 8, pp. 6858-6868, Aug. 2018.
    doi: 10.1109/TPEL.2017.2757950
  29. S. N. Ali, T. Johnson and D. Heo, “DC Polarity Control in Radio Frequency Synchronous Rectifier Circuits,” in IEEE Microwave and Wireless Components Letters, vol. 27, no. 12, pp. 1107-1109, Dec. 2017. doi: 10.1109/LMWC.2017.2756850
  30. X. Li, K. Duraisamy, J. Baylon, T. Majumder, G. Wei, P. Bogdan, D. Heo and P. P. Pande, “A Reconfigurable Wireless NoC for Large Scale Microbiome Community Analysis,” in IEEE Transactions on Computers, vol. 66, no. 10, pp. 1653-1666, Oct. 1 2017.
  31. P. Agarwal; S. P. Sah; R. Molavi; S. Mirabbasi; P. P. Pande; S. E. Oh; J. H. Kim; D. Heo, “Switched Substrate-Shield-Based Low-Loss CMOS Inductors for Wide Tuning Range VCOs,” in IEEE Transactions on Microwave Theory and Techniques, vol.PP, no.99, pp.1-13; doi: 10.1109/TMTT.2017.2675423
  32. Y. Tang, N. Tang, Z. Zhou, D. Heo, X. Wang, P. Liu and P. Zhang, “PWM-Skipping Technique for Overshoot and Undershoot Mitigation,” International Journal of Electronics Letters, pp. 1-7, Nov. 2016.
  33. N. Tang; B. Nguyen; R. Molavi; S. Mirabbasi; Y. Tang; P. Zhang; J. H. Kim; P. Pande; D. Heo, “Fully Integrated Buck Converter with Fourth-Order Low-Pass Filter,” in IEEE Transactions on Power Electronics, vol.PP, no.99, pp.1-1, July 2016.
  34. J. Ham, J. Bae,  H. Kim, M. Seo, H. Lee, K. C. Hwang, K. Y. Lee, C. S. Park, D. Heo, Y. Yang, “CMOS Power Amplifier Integrated Circuit with Dual-Mode Supply Modulator for Mobile Terminals”, IEEE Transactions on Circuits and Systems I: Regular Papers, vol.63, no.1, pp.157-167, Jan. 2016.
  35. T. Rahman, L. Renaud, D. Heo, M. Renn, R. Panat, “Aerosol based direct-write micro-additive fabrication method for sub-mm 3D metal-dielectric structures,” in Journal of Micromechanics and Microengnineering, Vol 25, No. 10, Sep. 2015, dx.doi.org/10.1088/0960-1317/25/10/107002
  36. H. Tantawy, A. Kengne, D. Mcilroy, T. Nguyen, D. Heo, Y. Qiang, E. Aston, “XPS Analysis for the Chemical Impact of Solvent Addition Rate on EM Shielding Effectiveness of HCl-Doped Polyaniline Nanopowders,” in Journal of Applied Physics 118, 175501 (2015); doi: 10.1063/1.4934851.
  37. N. Tang, W. Hong, J. H. Kim, Y. Yang and D. Heo, “A Sub-1-V Bulk-Driven Opamp With an Effective Transconductance-Stabilizing Technique,” in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 62, no. 11, pp. 1018-1022, Nov. 2015.
  38. X. Yu, H. Rashtian, S. Mirabbasi, P.P. Pande, D. Heo, “An 18.7-Gb/s 60-GHz OOK Demodulator in 65-nm CMOS for Wireless Network-on-Chip,” IEEE Transactions on Circuits and Systems I: Regular Papers, vol.62, no.3, pp.799-806, March 2015
  39. N. Tang; W. Hong; H. Beyenal; T Ewing; J. Kim,D. Heo “A Self-Sustainable Power Management System for Reliable Power Scaling Up of Sediment Microbial Fuel Cells,” IEEE Transactions on Power Electronics, vol.PP, no.99, pp.1,1, Feb. 2015
  40. X. Yu, J. Baylon, P. Wettin, D. Heo, P.P. Pande, S. Mirabbasi, “Architecture and Design of Multichannel Millimeter-Wave Wireless NoC,” in IEEE Design & Test, vol.31, no.6, pp.19-28, Dec. 2014
  41. Xinmin Yu; Sah, S.P.; Rashtian, H.; Mirabbasi, S.; Pande, P.P.; Deukhyoun Heo, “A 1.2-pJ/bit 16-Gb/s 60-GHz OOK Transmitter in 65-nm CMOS for Wireless Network-On-Chip,” IEEE Transactions on Microwave Theory and Techniques, vol.62, no.10, pp.2357,2369, Oct. 2014
    doi: 10.1109/TMTT.2014.2347919
  42. J Murray, N Tang, PP Pande, D Heo, B Shirazi, “DVFS Pruning for wireless NoC Architectures”, in IEEE Design & Test 32 (2), 2168-2356.
  43. Y. Tang, X. Wang, N. Tang, B. Nguyen, D. Heo, and P. Zhang, “HiPDN: A Power Distribution Network for Efficient On-Chip Power Delivery and Finegrain Low-Power Applications,” Circuits and Systems: An International Journal (CSIJ), vol. 1, pp. 27-41, July 2014.
  44. Ham, J., Jung, H., Kim, H., Lim, W., Heo, D., & Yang, Y. (2014). A CMOS Envelope Tracking Power Amplifier for LTE Mobile Applications. JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE, 14(2), 235-245.
  45. Ewing, T., Ha, P. T., Babauta, J. T., Tang, N. T., Heo, D., & Beyenal, H. (2014). Scale-up of sediment microbial fuel cells. Journal of Power Sources, 272, 311-319.
  46. Ewing, T., Babauta, J. T., Atci, E., Tang, N., Orellana, J., Heo, D., & Beyenal, H. (2014). Self-powered wastewater treatment for the enhanced operation of a facultative lagoon. Journal of Power Sources, 269, 284-292.
  47. W.Z.Song, M. Xu, D. De,  D. Heo, J.H. Kim and B.S. Kim, “ECPC: Towards Preserving Downtime Data Persistence in Disruptive Wireless Sensor Networks”, ACM Transactions on Sensor Networks, Volume 11 Issue 2, February 2015
    Article No. 24
  48. H. Peng, N. Tang, Y. Yang, D. Heo, “CMOS Startup Charge Pump With Body Bias and Backward Control for Energy Harvesting Step-Up Converters”, IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 61, pp. 1618-1628, 2014.
  49. S. P. Sah, P. Agarwal, D. Heo, “On the effects of mismatch on quadrature accuracy in tapped-capacitor load independent quadrature LC-oscillators”, IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 61, no. 5, pp. 1409-1415, May 2014.
  50. P. Liu, S. P. Sah, X. Yu, J. Jung, P. Upadhyaya, T. N. Nguyen, and D. Heo, “Design Techniques for Load Independent Direct Bulk-Coupled Low Power QVCO”, IEEE Trans. Microwave Theory & Tech,vol.61, no.10, pp.3658-3665, Oct. 2013. DOI: 10.1109/TMTT.2013.2279778
  51. S. P. Sah, X. Yu and D. Heo, “Design and Analysis of an Ultra-Wideband 15-35 GHz Quadrature Phase-Shifter with Inductive Loading”, IEEE Trans. Microwave Theory & Tech., vol. 68, no. 8, pp. 3024-3033, Aug. 2013. DOI: 10.1109/TMTT.2013.2267749
  52. J. Jung, P. Upadyaya, D. Heo, J.-H. Kim, and B.-S. Kim, “Wide Tuning Range LC VCO with Parallel Coupled Negative gm Cells”,  IET Electronic Letters, Vol. 49, Issue 9, April 2013 DOI: 10.1049/el.2012.4508
  53. C. Donovana, A. Dewan, D. Heo, Z. Lewandowski, and H. Beyenal, “Sediment microbial fuel cell powering a submersible ultrasonic receiver: New approach to remote monitoring,” Journal of Power Sources, Volume 233,  Pages 79-85, July 2013
  54. Nam-Jin Oh, Deukhyoun Heo, “A Low-power, Low Phase Noise CMOS VCO with Suppression of 1/f Flicker Noise Up-conversion,” IEICE Electronics Express, vol. 9, no. 24, pp. 1881-1886, December 2012
  55. S. Zhu, A. O. Mikul, P. Sun, Y. You, J.-H. Kim, B.-S. Kim, D. Heo, “Inductor-less SiGe pin diode attenuator with low phase variations,”  IET Electronics Letters, vol. 48, issue 20, pp. 1287 – 1289, September 2012
  56. S. Deb, K. Chang, X. Yu, S. P. Sah, A. Ganguly,  P. Pande, D. Heo, B. Belzer, “Design of an Energy Efficient CMOS Compatible NoC Architecture With mm-wave Wireless Interconnects,” IEEE Transactions on Computers (TC), Volume:PP, Issue: 99, September 2012.
  57. S. Deb, A. Ganguly, P. Pande, B. Belzer, D. Heo, “Wireless NoC as interconnection backbone for multicore chips: Promises and Challenges,” IEEE Journal on Emerging and Selected Topics in Circuits and Systems (JETCAS), Vol. 2, No.2, June 2012, pp. 228-239
  58. K. Chang, S. Deb, A. Ganguly, X. Yu, S. P. Sah, P. Pande, B. Belzer, D. Heo, “Performance Evaluation and Design Trade-Offs for Wireless Network-on-Chip Architectures,” ACM Journal on Emerging Technologies in Computing Systems (JETC), Volume 8 Issue 3, August 2012 Article No. 23, DOI: 10.1145/2287696.2287706
  59. P. Liu, P. Sun, J. jung, D. Heo, “PLL charge pump with adaptive body-bias compensation for minimum current variation,” IET Electronics Letters, vol. 48, issue 1, pp. 16-18, 2012
  60. P. Liu, P. Upadhyaya, J. Jung, D. Heo, J.-H. Kim, B.-S., “Low phase noise LC VCO with reduced drain current duty cycle,” IET Electronics Letters, vol. 48, issue 1, pp. 16-18, 2011
  61. S. Zhu, Y. You, D. Heo, J.-H. Kim, B.-S. Kim, “Current-reuse and gate-modulation techniques for sub-1 mW QVCO,” IET Electronics Letters, vol. 47, issue 9, pp. 530-531, 2011
  62. P. Liu, P. Upadhyaya, J. Jung, D. Heo, J.-H. Kim, B.-S. Kim, “Dynamically switched low-phase noise LC VCO with harmonic filtering,” IET Electronics Letters, vol. 47, issue 14, pp. 792-793, 2011
  63. S. Pinping, L. Peng, P. Upadhyaya, D.H. Jeong, D. Heo “Enhancement Technique of Insertion Loss and Linearity for PIN Diode Switches,” Microwave and Optical Technology Letters, vol. 53, pp. 1430-1435, June 2011.
  64. S. Zhu, Y. You, D. Heo, J.-H. Kim, B.-S. Kim, “Current-reuse and gate-modulation techniques for sub-1 mW QVCO,” Electronics Letters, vol. 47, issue 9,  pp. 530 – 531, 2011
  65. Conrad Donovan, Alim Dewan, Huan Peng, Deukhyoun Heo and Haluk Beyenal, “Power management system for a 2.5 W remote sensor powered by a sediment microbial fuel cell,” Journal of Power Sources, vol. 196, issue 3, pp. 1171-1177, 2011
  66. Jaeyoung Jung, Siqi Zhu, Peng Liu, Y.E. Chen, Deukhyoun Heo, “ 22-pJ/bit Energy-Efficient 2.4-GHz Implantable OOK Transmitter for Wireless Biotelemetry Systems: In Vitro Experiments Using Rat Skin-Mimic,”  IEEE Transactions on Microwave Theory and Techniques, vol. 58 , issue 12, pp. 4102-4111, 2010
  67. Alim Dewan, Conrad Donavan, Deukhyoun Heo, Haluk Beyenal, “Evaluating the performance of microbial fuel cells powering electronic devices,” Journal of Power Sources, vol. 196, Issue 1, pp. 90-96, January 2010.
  68. L. Wang, P. Sun, Y. You, A. Mikul, R. Bonebright, G. Kromholtz, D. Heo, “Highly Linear Ku-Band SiGe PIN Diode Phase Shifter in Standard SiGe BiCMOS Process,” IEEE Microwave and Wireless Components Letters, vol. 20,  issue 1,  pp. 37-39, January 2010.
  69. S. Pinping, D. Heo, “Analysis of parasitic effects for pin diode SPDT switch,” IEE(IET) Electronics Letters, vol. 45, pp. 503-504, May 7 2009.
  70. Conrad Donavan, Alim Dewan, Deukhyoun Heo, Haluk Beyenal, “Batteryless, wireless sensor powered by a sediment microbial fuel cell,” Environmental Science & Technolog, vol. 42, pp. 8591-8596, October 2008.
  71. Y.S. Suh, P. Sun, I. S. Kim, J. S, Song, and D. Heo, “A Fast Computation Method in Frequency Domain for Power Ground Plane Impedance Calculation Using the Mobius Transform,” IEEE Transactions on Advanced Packaging, vol. 31, pp. 320-325, May 2008.
  72. Y. Zhang, P. Upadhyaya, L. Peng, D. Rector, D. Heo, “Analysis of resonator phase shift for two series LC quadrature VCOs,” IEE(IET) Electronics Letters, vol. 44, pp. 26-27, January 3 2008.
  73. P. Sun, P. Upadhyaya, D. Jeong, D. Heo and G.S. LaRue, “A Novel Monolithic SiGe PIN Diode SPST Switch for Broadband T/R Module” IEEE Microwave and Wireless Components Letters, vol. 17, pp. 352-354, May 2007.
  74. Yueh-Hua Yu, Yi-Jan Emery Chen, and Deukhyoun Heo, “A 0.6V Low Power UWB CMOS LNA,” accepted for publication in IEEE Microwave and Wireless Components Letters, vol. 17, pp. 229-231, March 2007.
  75. Y.-J.E. Chen, C.-Y. Liu, T.-N. Luo, D. Heo, “A High-Efficient CMOS RF Power Amplifier with Automatic Adaptive Bias Control,” IEEE Microwave and Wireless Components Letters, vol. 16, pp. 615-617, Nov. 2006.
  76. B. Banerjee, S. Venkataraman, Yuan Lu, Qingqing Liang, Chang-Ho Lee, S. Nuttinck, Deukhyoun Heo, Y. J. Chen, J. D. Cressler, J. Laskar, G. Freeman, D. C. Ahlgren, “Cryogenic operation of third-generation, 200-GHz peak-ft, silicon-germanium heterojunction bipolar transistors,” IEEE Transactions on Electron Devices, vol. 52,  Issue 4,  pp. 585-593, April 2005.
  77. N. Srirattana, A. Raghavan, D. Heo, P. E. Allen, J. Laskar, “Analysis and design of a high-efficiency multistage Doherty power amplifier for wireless communications,” IEEE Transactions on Microwave Theory and Techniques, vol. 53,  Issue 3,  pp. 852-860,  March 2005.
  78. A. Raghavan, S. Venkataraman, B. Banerjee, Youngsuk Suh, Deukhyoun Heo, J. Laskar, “Direct extraction of an empirical temperature-dependent InGaP/GaAs HBT large-signal model,” IEEE Journal of Solid-State Circuits, vol. 38,  Issue 9,  pp. 1443-1450, Sept. 2003.
  79. Kyutae Lim, Stephane Pinel, Mekita Davis, Albert Sutono, Chang-Ho Lee, Deukhyoun Heo, Ade Obatoynbo, Joy Laskar, Emmanouil M. Tantzeris, Rao Tummala, “RF-System-On-Package(SOP) for Wireless Communications,” IEEE Microwave, vol. 3, No. 1, pp. 88-99, March 2002.
  80. E. Chen, D. Heo, M. Hamai, and J. Laskar, “0.24-um CMOS Technology for Bluetooth Power Application,” Microwave Journal, pp. 142-152, February 2001.
  81. A. Sutono, D. Heo, E. Chen, J. Laskar, “High-Q LTCC-based passive library for wireless system-on-package (SOP) module development,” IEEE Transactions on Microwave Theory and Tech., pp. 1715-1724, October 2001.)
  82. D. Heo, A. Sutono, E. Chen, Y. Suh, and J. Laskar, “1.9 GHz DECT CMOS Power Amplifier with Fully Integrated Multi-layer LTCC Passives,” IEEE Microwave and Wireless Components Letters, vol. 11, No. 6, pp. 249-251, June 2001.
  83. M. Farahmand, K. F. Brennan, E. Gebara, D. Heo, Y. Suh, and J. Laskar, “Theoretical Study of RF-Breakdown in bulk GaN and GaN MESFETs,” IEEE Transactions on Electronic Devices, Vol. 48, Issue 9, pp. 1844-1849, September 2001.
  84. S. Yoo, M. R. Murti, D. Heo and J. Laskar, “A C-band Low Power High Dynamic Range GaAs MESFET Low Noise Amplifier,” Microwave Journal, pp. 90-106, February 2000.
  85. D. Heo, E. Gebara, E. Chen, S. Yoo, M. Hamai, Y. Suh, and J. Laskar, “An Improved Deep Sub-micron MOSFET RF Nonlinear Model with New Breakdown Current Model and Drain-to-Substrate Nonlinear Coupling,” IEEE Transactions on Microwave Theory and Tech., vol. MTT-48, pp. 2361-2369, December 2000.