陳怡然 Chen, Yi-Jan
- Distinguished Professor, Department of Electrical Engineering, National Taiwan University
- Ph.D. Georgia Institute of Technology, 2001
- M.S. University of California, Santa Barbara, 1991
- B.S. National Taiwan University, 1987
- Office : EE2 338
- TEL : +886-2-33665882
- FAX : 02-3366-5882
- Email :
- Office Hour : Mon. 13:00 ~ 15:00
- Website : http://cc.ee.ntu.edu.tw/~emery
Major Research Areas
Research Summary
Dr. Chen's research focuses on the technology development of RFIC, RF power amplifier, System-in-Package (SiP), LCD driver / LED driver IC, power management IC, green engergy power IC, high-speed I/O, sensing and radar circuits to meet the challenge of emerging wireless and broadband applications.
Yi-Jan Emery Chen (M’01–SM’07-F'18) received the B.S. degree in electrical engineering from National Taiwan University, Taipei, Taiwan, R.O.C., in 1987, the M.S. degree in electrical and computer engineering from the University of California at Santa Barbara, CA, in 1991, and the Ph.D. degree in electrical engineering from the Georgia Institute of Technology, Atlanta, in 2001.
From 1992 to 1993, he was a Software Engineer with Siemens Telecommunication, where he was involved with synchronous optical network (SONET) equipment development. From 1993 to 1996, he was with Tektronix, where he was responsible for electronic test and measurement solutions. From 2000 to 2002, he was with National Semiconductor, where he was involved with radio-frequency (RF) transceiver and RF power amplifier (PA) design. In 2002, he was with the Georgia Institute of Technology as a Member of the Research Faculty. Since 2003, he has been with National Taiwan University, where he is currently a Professor. He has authored or coauthored over 100 refereed journal and conference papers. His recent research focuses on the design of RF integrated circuits (RFICs), RF power amplifiers, LCD/LED drivers, power management ICs, and sensing/radar circuits.
Dr. Chen served as an Associate Editor of the IEEE Microwave and Wireless Components Letters from 2009 to 2015. He has been serving on the Technical Program Committees of the IEEE MTT-S International Microwave Symposium (IMS), and the IEEE Radio and Wireless Symposium (RWS) since 2008. He was the co-recipient of the 2000 IEEE MTT-S IMS Best Student Paper Award and the co-recipient of the 2008 University Team Award for Contribution to Industrial Economics from the Ministry of Economic Affairs, Taiwan. He has been the advisor of several student award recipients including the Chi-Mei Award, Macronix Golden Silicon Award, Paper Award from the Institute of Chinese Electrical Engineering, and Master Thesis Award from Taiwan IC Design Society. He is an IEEE Fellow.
Journal articles & book chapters
1. Y.-C. Chang, Y.-H. Chen, J.-H. Chen and Y.-J. E. Chen, “A Direct Digital Synthesis Transmitter for 5G Applications with Low-Resolution DACs” , IEEE Transactions on Circuits and Systems II: Express Briefs , Vol. vol. 71, no. 9 , Sep. 2024
2. Z. -Y. Huang and Y.-J. E. Chen, “A 2.4-GHz CMOS Efficiency-Enhanced Rectifier With a Differential-Feed Patch Antenna” , IEEE Microwave and Wireless Technology Letters , Vol. vol. 34, no. 2 , 229-232, Feb. 2024
3. H. -T. Chou, B. -A. Liu, S. -C. Chen and Y. -J. E. Chen, “Dual-Band Dual-Polarized Microstrip Patch Antenna With Parasitic Elements for 5G Antenna-in-Package Design at Millimeter-Wave Frequencies” , IEEE Transactions on Components, Packaging and Manufacturing Technology , Vol. vol. 13, no. 11 , 1778-1789, Nov. 2023
4. C.-H. Kuo, J. -T. Yeh, J. -H. Chen and Y. -J. E. Chen, “A Dual-Phase Center-Aligned 7-Bit Digital Pulsewidth Modulator for Polar Transmitters” , IEEE Transactions on Microwave Theory and Techniques , Vol. vol. 70, no. 11 , 5205-5212, Nov. 2022
5. K.-P. Hsieh, Y.-T. Lin, Y.-C. Lu and Y.-J. E. Chen, “A Fast-Settling Frequency Synthesizer Using Statistical Frequency Measurement Method” , IEEE Transactions on Instrumentation and Measurement , Vol. vol. 71 , 1-9, Aug. 2022
6. PJ. Wang, YH. Pang, SY. Huang, JT. Fang, SY. Chang, SR. Shih, TW. Huang, YJ. Chen and CK. Sun, “Microwave Resonant Absorption of SARS-CoV-2 Viruses” , Sci Rep , Vol. 12 , 12596-, 2022
7. Y.-H. Chen, S.-C. Lin, J.-H. Hung, H.-S. Yang, J.-H. Chen and Y.-J. E. Chen, “A Low-Resolution Direct Digital Synthesis Transmitter Architecture Using Dithering for Multiband 5G NR Mobile Applications” , IEEE Microwave and Wireless Components Letters , Vol. vol. 32, no. 11 , 1359-1362, Nov. 2022
8. H.-C. Lee, Y.-C. Lu, Y.-C. Lin, W.-L. Lai, H.-Y. Hsieh, B.-Y. Jaw, C.-T. Chuang, Y.-C. Chen, Y.-J. E. Chen, “A High Voltage Driving Chiplet in Standard 0.18-μm CMOS for Micro-Pixelated LED Displays Integrated with LTPS TFTs” , IEEE Transactions on Circuits and Systems for Video Technology , Vol. vol. 32, no. 10 , 7204-7211, Oct. 2022
9. Y.-C. Lin and Y.-J. E. Chen, “A CMOS Envelope Tracking Supply Convertor for RF Power Amplifiers of 5G NR Mobile Terminals” , IEEE Transactions on Power Electronics , Vol. vol. 36, no. 6 , 6814-6823, Jun. 2021
10. Y.-C. Lu, C.-H. Wu and Y.-J. E. Chen, “A 65-nm CMOS Statistical Frequency Ratio Calculator For Frequency Measurement” , IEEE Transactions on Industrial Electronics , Vol. vol. 68, no. 4 , 3558-3566, Apr. 2021
11. You-Huei Chen, Tzu-Han Wang, Shu-Chen Lin, Jau-Horng Chen, Yi-Jan Emery Chen, “A Pulse-Modulated Polar Transmitter Using Direct Digital Synthesis for 5G NR Mobile Applications” , IEEE Transactions on Circuits and Systems, Part-II, Express Briefs , Vol. vol. 67, no. 10 , 1894-1898, Oct. 2020
12. Shu-Chen Lin, Shuo-Heng Xu, You-Huei Chen, Chun-Wei Chang, Yi-Jan Emery Chen, and Jau-Horng Chen, “Gibbs-Phenomenon-Reduced Digital PWM for Power Amplifiers Using Pulse Modulation” , IEEE Access , Vol. vol. 7 , 178788-178797, Dec. 2019
13. Shan-En Chang and Yi-Jan Emery Chen, “A CMOS OOK Modulator with Fast Envelope Transient” , IET Electronics Letters , Vol. vol. 55, no. 17 , 927-928, Aug. 2019
14. Chi-Kuang Sun, Yi-Chun Tsai, Yi-Jan E. Chen, Tzu-Ming Liu, Hui-Yuan Chen, Han-Ching Wang, and Chu-Fang Lo, “Resonant Dipolar Coupling of Microwaves with Confined Acoustic Vibrations in a Rod-shaped Virus” , Scientific Reports , Vol. 7 , 4611-, 2017
15. Yueh-Hua Yu and Yi-Jan Emery Chen, “A wideband low-spur 0.18-μm CMOS phase-locked loop with bandwidth calibration” , International Journal of Circuit Theory and Applications , Vol. 44 , 476-491, Feb. 2016
16. Li-Fan Tsai, Jau-Horng Chen, and Yi-Jan Emery Chen, “A CMOS Full-Cycle Mixing Vector Modulator” , IEEE Microwave and Wireless Components Letters , Vol. 26 , 825-827, Oct. 2016
17. Hao-Shun Yang, Janu-Horng Chen, and Yi-Jan Emery Chen, “A wideband and highly symmetric multi-port parallel combining transformer technology” , IEEE Transactions on Microwave Theory and Techniques , Vol. 63 , 3671-3680, Nov. 2015
18. Chien-Chia Ling, Hao-Shun Yang, Jau-Horng Chen, and Yi-Jan Emery Chen, “A 1.9 GHz CMOS High Isolation Absorptive OOK Modulator” , IEEE Microwave and Wireless Components Letters , Vol. 25 , 190-192, Mar. 2015
19. Hao-Shun Yang, Jau-Horng Chen, and Yi-Jan Emery Chen, “A 1.2-V 90-nm Fully Integrated Compact CMOS Linear Power Amplifier Using the Coupled L-shape Concentric Vortical Transformer” , IEEE Transactions on Microwave Theory and Techniques , Vol. 62 , 2689-2699, Nov. 2014
20. Yang-Wen Chen, Tang-Nian Luo, Hugo Cruz, and Yi-Jan Emery Chen, “A W-band Harmonically Enhanced CMOS Divide-by-three Frequency Divider” , EEE Microwave and Wireless Components Letters , Vol. vol.24, No.4 , pp.257-259-, Apr. 2014
21. Ken-Fu Liang, Jau-Horng Chen, and Yi-Jan Emery Chen, “A Quadratic-Interpolated LUT-Based Digital Pre-distortion Technique for Cellular Power Amplifiers” , IEEE Transactions on Circuits and Systems , Vol. vol.61, No.3 , pp.133-137-, Mar. 2014
22. Tang-Nian Luo, Chi-Hung Evelyn Wu, and Yi-Jan Emery Chen, “A 77-GHz CMOS FMCW Frequency Synthesizer With Reconfigurable Chirps” , IEEE Transactions on Microwave Theory and Techniques , Vol. vol. 61, no. 7 , pp. 2641-2647-, Jul. 2013
23. Yang-Wen Chen, Yueh-Hua Yu, and Yi-Jan Emery Chen, “A 0.18-um CMOS Dual-Band Frequency Synthesizer With Spur Reduction Calibration” , IEEE Microwave and Wireless Components Letters , Vol. vol. 23, no. 10 , pp. 551-553-, Oct. 2013
24. Tang-Nian Luo, Chi-Hung Evelyn Wu, and Yi-Jan Emery Chen, “A 77-GHz CMOS Automotive Radar Transceiver With Anti-interference Function” , IEEE Transactions on Circuits and Systems , Vol. vol. 60, no. 12, , pp. 3247-3255-, Dec. 2013
25. Chao-An Yu, Tang-Nian Luo, Yi-Jan Emery Chen, “A V-Band Divide-by-Four Frequency Divider With Wide Locking Range and Quadrature Outputs” , IEEE Microwave and Wireless Components Letters , Vol. vol. 22, no. 2 , pp. 82-84-, Feb. 2012
26. Pang-Jung Liu, Wei-Shan Ye, Jia-Nan Tai, Hsin-Shu Chen, Jau-Horng Chen, Yi-Jan Emery Chen, “A High-Efficiency CMOS DC-DC Converter With 9-us Transient Recovery Time” , IEEE Transactions on Circuits and Systems , Vol. vol. 59, no. 3 , pp. 575-583-, Mar. 2012
27. Pang-Jung Liu and Yi-Jan Emery Chen, “A 10-bit CMOS DAC with Current Interpolated Gamma Correction for LCD Source Drivers” , IEEE Transactions on Circuits and Systems for Video Technology , Vol. vol. 22, no. 6, , pp. 958-965-, Jun. 2012
28. Pang-Jung Liu, Jia-Nan Tai, Hsin-Shu Chen, Jau-Horng Chen, Yi-Jan Emery Chen, “Spur-Reduction Design of Frequency-Hopping DC-DC Converters” , IEEE Transactions on Power Electronics , Vol. vol. 27, no. 11 , pp. 4763 – 4771-, Nov. 2012
29. Chun-Wei Chang, Yi-Jan Emery Chen, and Jau-Horng Chen, “A Power-Recycling Technique for Improving Power Amplifier Efficiency Under Load Mismatch” , IEEE Microwave and Wireless Components Letters , Vol. vol. 21, no. 10 , pp. 571-573-, Oct. 2011
30. Kai-Yu Tsai, Hao-Shun Yang, Jau-Horng Chen, Chen, and Yi-Jan Emery Chen, “A Miniaturized 3 dB Branch-Line Hybrid Coupler With Harmonics Suppression” , IEEE Microwave and Wireless Components Letters , Vol. vol. 21, no. 10 , pp. 537-539-, Oct. 2011
31. Hao-Shun Yang, Jau-Horng Chen, Chen, and Yi-Jan Emery Chen, “A Polar Transmitter Using Interleaving Pulse Modulation for Multimode Handsets” , IEEE Transactions on Microwave Theory and Techniques , Vol. vol. 59, no. 8 , pp. 2083-2090-, Aug. 2011
32. Jau-Horng Chen, Hao-Shun Yang, Hou-Chung Lin, and Yi-Jan Emery Chen, “A Polar-Transmitter Architecture Using Multiphase Pulsewidth Modulation” , IEEE Transactions on Circuits and Systems Part-I Regular Papers , Vol. vol. 58, no. 2 , pp. 244-252-, Feb. 2011
33. Yueh-Hua Yu, Wei-Hong Hsu, and Yi-Jan Emery Chen, “A Ka-Band Low Noise Amplifier Using Forward Combining Technique” , IEEE Microwave and Wireless Components Letters , Vol. vol. 20, no. 12 , pp. 672-674-, Dec. 2010
34. Jaeyoung Jung, Siqi Zhu, Peng Liu, Yi-Jan Emery Chen, and 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. vol. 58, no. 12 , pp. 4102-4111-, Dec. 2010
35. Yi-Jan Emery Chen, Yuan-Jiang Lee, and Yueh-Hua Yu, “Investigation of Polysilicon Thin-Film Transistor Technology for RF Applications” , IEEE Transactions on Microwave Theory and Techniques , Vol. vol. 58, no. 12 , pp. 3444-3451-, Dec. 2010
36. Jau-Horng Chen, Hao-Shun Yang, and Yi-Jan Emery Chen, “A Technique for Implementing Wide Dynamic Range Polar Transmitters” , IEEE Transactions on Microwave Theory and Techniques , Vol. vol. 58, no. 9 , pp. 2368-2374-, Sep. 2010
37. Jau-Horng Chen, Pang-Jung Liu, Yu-Ling Hung, Hao-Shun Yang, and Yi-Jan Emery Chen, “A Spur-Reduced Multimode Power-Level Tracking Power Amplifier Using a Frequency-Hopping DC–DC Converter” , IEEE Transactions on Microwave Theory and Techniques , Vol. vol. 58, no. 5 , pp. 1333-1338-, May 2010
38. Jau-Horng Chen, Hao-Shun Yang, and Yi-Jan Emery Chen, “A Multi-Level Pulse Modulated Polar Transmitter Using Digital Pulse-Width Modulation” , IEEE Microwave and Wireless Components Letters , Vol. vol. 20, no. 5 , pp. 295-297-, May 2010
39. Yueh-Hua Yu, Yong-Sian Yang, and Chen, Yi-Jan Emery Chen, “A Compact Wideband CMOS Low Noise Amplifier With Gain Flatness Enhancement” , IEEE Journal of Solid-State Circuits , Vol. vol. 45, no. 3 , pp. 502-509-, Mar. 2010
40. Tzu-Ming Liu, Hung-Ping Chen, Li-Tzu Wang, Jen-Ren Wang, Tang-Nian Luo, Yi-Jan Chen, Shen-Iuan Liu, and Chi-Kuang Sun, “Microwave resonant absorption of viruses through dipolar coupling with confined acoustic vibrations” , Appl. Phys. lett. , Vol. 94 , 043902-, Jan. 2009
41. Tzu-Ming Liu, Hung-Pin Chen, Shih-Chia Yeh, Chih-Yu Wu, Chung-Hsiung Wang, Tang-Nian Luo, Yi-Jan Chen, Shen-Iuan Liu, and Chi-Kuang Sun, “Effects of hydration levels on the bandwidth of microwave resonant absorption induced by confined acoustic vibrations” , Applied Physics Letters , Vol. 95 , 173702-, Oct. 2009
42. Pang-Jung Liu and Yi-Jan Emery Chen, “A linearly adaptive gate drive technique for light-load efficiency improvement of DC–DC converters” , Int. J. Circ. Theory Appl. , Vol. vol. 37, no. 10 , pp. 1063-1073-, Dec. 2009
43. Chih-Wei Chang and Yi-Jan Emery Chen, “A CMOS True Single-Phase-Clock Divider With Differential Outputs” , IEEE Microwave and Wireless Components Letters , Vol. vol. 19, no. 12 , Dec. 2009
44. Y.-H. Yu and Y.-J. E. Chen, “Divide-by-four frequency divider in poly-Si thin film transistor technology” , IET Electronics Letters , Vol. vol. 45, no. 22 , pp. 1122-1124-, Oct. 2009
45. Pang-Jung Liu, Yu-Kang Lo, Huang-Jen Chiu, and Yi-Jan Emery Chen, “A Fast Transient Recovery Module for DC-DC Converters” , IEEE Trans. Ind. Electron. , Vol. vol. 56, no. 7 , pp. 2522-2529-, Jul. 2009
46. Yueh-Hua Yu, Yuan-Jiang Lee, Yu-Hsuan Li, Chung-Hung-Kuo, Chun-Huai Li, Yao-Jen Hsieh, Chun-Ting Liu, and Yi-Jan Emery Chen, “A LTPS TFT Demodulator for RFID Tags Embeddable on Panel Displays” , IEEE Trans. Microw. Theory Tech. , Vol. vol. 57, no. 5 , pp. 1356-1361-, May 2009
47. Pang-Jung Liu, Yu-Kang Lo, Huang-Jen Chiu, and Yi-Jan Emery Chen, “Dual-Current Pump Module for Transient Improvement of Step-down DC-DC Converters” , IEEE Trans. Power Electronics , Vol. vol. 24, no. 4 , pp. 985-990-, Apr. 2009
48. T.-N. Luo, S.-Y. Bai, and Y.-J. E. Chen, “A 77 GHz CMOS Injection-locked Miller frequency divider” , IET Electronics Letters , Vol. vol. 45, no. 1 , pp. 57-59-, Jan. 2009
49. Yueh-Hua Yu and Yi-Jan Emery Chen, “Ring-Based Direct Injection-Locked Frequency Divider in Display Technology” , IEEE Microwave and Wireless Components Letters , Vol. vol. 18, no. 11 , pp. 752-754-, Nov. 2008
50. Tang-Nian Luo, Shuen-Yin Bai, and Yi-Jan Emery Chen, “A 60-GHz 0.13-µm CMOS Divide-by-Three Frequency Divider” , IEEE Trans. Microw. Theory Tech , Vol. vol. 56, no. 11 , pp. 2409-2415-, Nov. 2008
51. Tang-Nian Luo and Yi-Jan Emery Chen, “A Millimeter-Wave 90-nm CMOS Self-Mixing Frequency Divider” , IEEE Microwave and Wireless Components Letters , Vol. vol. 18, no. 8 , pp. 563-565-, Aug. 2008
52. Tang-Nian Luo and Yi-Jan Emery Chen, “A 0.8mW 55GHz Dual-Injection Locked CMOS Frequency Divider” , IEEE Trans. Microw. Theory Tech , Vol. vol. 56, no. 3 , pp. 620-625-, Mar. 2008
53. Li-YuanYang, Hsin-Shu Chen, and Yi-Jan Emery Chen, “A 2.4 GHz Fully Integrated Cascode-Cascade CMOS Doherty Power Amplifier” , IEEE Microwave and Wireless Components Letters , Vol. vol. 18, no. 3 , pp. 197-199-, Mar. 2008
54. Yi-Jan Emery Chen, Li-Yuan Yang, and Wei-Chinh Yeh, “An Integrated Wideband Power Amplifier for Cognitive Radio” , IEEE Trans. Microwave Theory Techniques , Vol. vol. 55, no. 10 , pp. 2053-2058-, Oct. 2007
55. Yi-Jan Emery Chen and Yao-I Huang, “Development of Integrated Broad-Band CMOS Low-Noise Amplifiers” , IEEE Trans. Circuits Syst. Part-I Regular Papers , Vol. vol. 54, no. 10 , pp. 2120-2127-, Oct. 2007
56. Yueh-Hua Yu, Yi-Jan Emery Chen, and Deukhyoun Heo, “A 0.6V Low Power UWB CMOS LNA” , IEEE Microwave and Wireless Components Letters , Vol. vol. 17, no. 3 , 229-231-, Mar. 2007
57. Yi-Jan Emery Chen, Chih-Yun Liu, Tang-Nian Luo, and Deukhyoun Heo, “A High-Efficient CMOS RF Power Amplifier with Automatic Adaptive Bias Control” , IEEE Microwave and Wireless Components Letters , Nov. 2006
58. W.-M. L. Kuo, J. D. Cressler, Y.-J. E. Chen, and A. J. Josep, “An Inductorless Ka-Band SiGe HBT Rring Oscillator” , IEEE Microwave and Wireless Components Letters , Vol. vol. 15, no. 10 , pp. 682-684-, Oct. 2005
59. Yi-jan Emery Chen, Wei-Min Lance Kuo, Zhenrong Jin, Jongsoo Lee, Y. V. Tretiakov, J. D. Cressler, J. Laskar, G. Freeman, “A low-power ka-band Voltage-controlled oscillator implemented in 200-GHz SiGe HBT technology” , IEEE Trans Microwave Theory Techniques , Vol. vol. 53, no. 5 , pp. 1672-1681-, May 2005
60. B. Banerjee, S. Venkataraman, Y. Lu, Q. Liang, C.-H. Lee, S. Nuttinck, D. Heo, Y.-J. E. 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 Trans. Electron Devices , Vol. vol. 52, no. 4 , 585-593-, Apr. 2005
61. Wei-Min Lance Kuo, John D. Cressler, Yi-Jan Emery Chen, and Alvin J. Josep, “A compact 21 GHz inductorless differential quadrature ring oscillator implemented in SiGe HBT technology” , Materials Science in Semiconductor Processing , Vol. vol. 8, issues 1-3 , pp. 445-449-, Feb. 2005
62. S. Chakraborty, K. Lim, A. Sutono, E. Chen, S. Yoo, A. Obatoyinbo, S. -W, Yoon, M. Maeng, M. F. Davis, S. Pinel, and J. Laskar,, “A 2.4-GHz Radio Front End in RF System-on-Package Technology” , IEEE Microwave Magazine, , Vol. vol. 3, issue 2, , pp. 94-104,-, Jun. 2002
63. Albert Sutono, Deukhyoun Heo, Yi-Jan Emery Chen, and Joy Laskar,, “High Q LTCC-based Passive Library for Wireless System-on-Package (SOP) Module Development” , IEEE Transactions on Microwave Theory and Techniques, , Vol. vol. 49, no. 10, part-1, , pp. 1715-1724,-, Oct. 2001
64. D. Heo, A. Sutono, E. Chen, Y. Suh, and J. Laskar,, “A 1.9-GHz DECT CMOS Power Amplifier with Fully Integrated Multilayer LTCC Passives” , IEEE Microwave and Wireless Components Letters, , Vol. vol. 11, no. 6, , pp. 249-251,-, Jun. 2001
65. E. Chen, D. Heo, J. Laskar, and D. Bien,, “0.24-um CMOS Technology and BSIM RF Modeling for Bluetooth Power Applications” , Microwave Journal, , Vol. vol. 44, no. 2, , pp. 142-152,-, Feb. 2001
66. Deukhyoun Heo, Edward Gebara, Yi–Jan Emery Chen, Seung-yup Yoo, Mikchael Hamai, Youngsuk Suh, and Joy Laskar,, “An Improved Deep Submicrometer MOSFET RF Nonlinear Model with New Breakdown Current Model and Drain-to-Substrate Nonlinear Coupling” , IEEE Transactions on Microwave Theory and Techniques, , Vol. vol. 48, no. 12, , pp. 2361-2369,-, Dec. 2000
Conference & proceeding papers:
1. [2] Yun-Chih Lu, Yen-Yu Pan, and Yi-Jan Emery Chen, “A Wide-range 130-nm CMOS Statistic-based Frequency Ratio Calculator” , IEEE MTT-S International Microwave Conference , Philadelphia, PA , Jun. 2018
2. [1] Yueh-Hua Yu, Jau-Horng Chen, and Yi-Jan Emery Chen, “A Wideband 90-nm CMOS Phase-Locked Loop with Current Mismatch Calibration for Spur Reduction” , IEEE Asia-Pacific Microwave Conference , Kyoto, Japan , Nov. 2018
3. Hsin-Shu Chen, Jia-Nan Tai, Yi-Jan Emery Chen, Jau-Horng Chen, “A Current Average Control Method for Transient-Glitch Reduction in Variable Frequency DC-DC Converters” , IEEE International Symposium on Circuits & Systems ISCAS , May 2017
4. Hugo Cruz and Yi-Jan Emery Chen, “A 1mW Direct Conversion Receiver for the 2.4 GHz ISM Band” , IEEE Radio and Wireless Symposium , Austin, Tx, , Jan. 2016
5. Hao-Shun Yang, Yi-Jan Emery Chen, and Jau-Horng Chen, “A Pulse-Mode CMOS Power Amplifier for Multi-Band LTE Femtocell Base Station” , IEEE MIT-S International Microwave Symposium , San Francisco, CA , May 2016
6. Hao-Shun Yang, Yi-Jan Emery Chen, and Jau-Horng Chen, “A Pulse-Mode CMOS Power Amplifier for Multi-Band LTE Femtocell Base Stations” , IEEE MTT-S International Microwave Symposium , San Francisco, CA , May 2016
7. Chi-Kuang Sun, Yi-Chun Tsai, Chuan-Liang Kao, Han-Ching Wang, Chu-Fang Lo, and Yi-Jan Chen, “Structure resonance energy transfer from EM wave to rod-like virus” , 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) , Sep. 2016
8. Hao-Shun Yang, Chun-Wei Chang, Yi-Jan Emery Chen, and Jau-Horng Chen, “A Dual-Phase Pulse-Modulated Polar Transmitter with High Efficiency and Linearity Using Power Recycling” , 2015 IEEE MTT-S International Microwave Symposium , Phoenix, AZ , Mar. 2015
9. Yun-Rong Chung, Yueh-Hua Yu, Yun-Chih Lu, Yi-Jan Emery Chen, “A V-band CMOS 90nm PLL” , 2014 Asia-Pacific Microwave Conference , Sendai, Japan , Nov. 2014
10. Yi-Jan Emery Chen, Hao-Shun Yang, and Jau-Horng Chen, “Pulse-Modulated Polar Transmitters for Spectrum-Efficient Wireless Applications” , IEEE International Wireless Symposium , Xi’an , Apr. 2014
11. Hugo Cruz, Yang-Wen Chen, Yun-Chih Lu, and Yi-Jan Emery Chen, “A Harmonic-Boosted V-Band divide-by-3 frequency divider in 65nm CMOS” , IEEE International Wireless Symposium , Xi’an , Apr. 2014
12. Yun-Chih Lu, Tang-Nian Luo, Jau-Horng Chen, and Yi-Jan Emery Chen, “A 77-GHz LNA for Automotive Radar Application” , IEEE International Wireless Symposium , Beijing , Apr. 2013
13. Hao-Shun Yang, Li-Wei Lin, and Yi-Jan Emery Chen, “A pHEMT Power Amplifier with an On-off Modulator” , IEEE Radio and Wireless Symposium , Austin, TX , Jan. 2013
14. Yueh-Hua Yu, Jau-Horng Chen, and Yi-Jan Emery Chen, “A 90 nm CMOS Wideband Low Noise Amplifier using Bandwidth Extension Technique” , Asia-Pacific Microwave Conference , Melbourne, Australia , Dec. 2011
15. Kai-Yu Tsai, Hao-Shun Yang, Jau-Horng Chen, and Yi-Jan Emery Chen, “A Miniaturized Branch-Line Coupler Using Finger-Shape Distributed Capacitor” , Asia-Pacific Microwave Conference , Yokohama, Japan , Dec. 2010
16. Peng Liu, Parag Upadhyaya, Jaeyoung Jung, Tang-Nian Luo, Yi-Jan Chen, and Deukhyoun Heo, “Low Phase Noise Load Independent Switched LC VCO” , IEEE MTT-S International Microwave Symposium , Anaheim, CA , May 2010
17. Jaeyoung Jung, Siqi Zhu, Peng Liu, Le Wang, Tang-Nian Luo, Yi-Jan Chen, and Deukhyoun Heo, “Energy Efficient 136 Mb/s OOK Implantable Transmitter for Wireless Brain Computer Interface” , IEEE MTT-S International Microwave Symposium , Anaheim, CA , May 2010
18. Hao-Shun Yang, Hung-Lung Shih, Jau-Horng Chen, and Yi-Jan Emery Chen, “A Pulse Modulated Polar Transmitter for CDMA Handsets” , IEEE MTT-S International Microwave Symposium , Anaheim, CA , May 2010
19. Yi-Jan Emery Chen, Yuan-Jiang Lee, Yueh-Hua Yu, and Shu-Mei Huang, “On the Development of RFID Tags in TFT Technology” , IEEE Asia Pacific Microwave Conference , Dec. 2009
20. Pang-Jung Liu, Yi-Jan Chen, “A Self-scaling Gate Drive Technique for Efficiency Improvement of DC-DC Converters” , Proc. IEEE Int. Symp. Ind. Electron. , Jul. 2009
21. Jau-Horng Chen, Bang-Rong Liu, and Yi-Jan Emery Chen, “A Spurious Emission Reduction Technique for Power Amplifiers Using Frequency Hopping DC-DC Converters” , Proc. IEEE RFIC Symp. , Jun. 2009
22. Y.-H. Yu, W.-H. Hsu, Y.-J. E. Chen, and C. F. Kuo, “A 1V CMOS Up-Converter for Dual-Band GPS/Galileo Receivers” , Proc. IEEE Asia-Pacific Microw. Conf. , Dec. 2008
23. Tang-Nian Luo, Yen-Chia Chen, Yueh-Hua Yu, and Yi-Jan Emery Chen, “A 1-V 900-MHz CMOS Cascaded Even-Harmonic Mixer” , Proc. IEEE Asia-Pacific Microw. Conf. , Dec. 2008
24. Y. Zhang, P. Liu, T.-N. Luo, Y.-J. E. Chen, and D. Heo, “A low-voltage low-phase-noise bottom-series LC QVCO using capacitor tapping technique” , IEEE MTT-S Int. Microw. Symp. Dig. , Jun. 2008
25. T.-N. Luo, Y.-J. E. Chen, and D. Heo, “A V-band Wide Locking Range CMOS Frequency Divider” , IEEE MTT-S Int. Microw. Symp. Dig. , Jun. 2008
26. Tang-Nian Luo, Shuen-Yin Bai, Yi-Jan Emery Chen, Chun-Lin Ko, Chin-Fong Chiu, and Ying-Zong Juang, “A 43 GHz 0.13µm CMOS Prescaler” , Proc. IEEE Radio and Wireless Symp. , Jan. 2008
27. Tang-Nian Luo and Yi-Jan Emery Chen, “A Sub-1V Low Power V-Band CMOS VCO With Self-Body-Bias” , Proc. IEEE APMC Asia-Pacific Microwave Conference , Dec. 2007
28. Yueh-Hua Yu, Feng-Kuan Su, Yi-Jan Emery Chen, and Deukhyoun Heo, “A 1V Wide Tuning Range VCO for UHF DTV Tuner” , Proc. IEEE APMC Asia-Pacific Microwave Conference , Dec. 2007
29. Parag Upadhyaya, Deukhyoun Heo, David M. Rector, and Yi-Jan Emery Chen, “A 1.1V Low Phase Noise CMOS Quadrature LC VCO with 4-Way Center-tapped Inductor” , IEEE MTT-S Int. Microw. Symp. Dig. , Jun. 2007
30. Tang-Nian Luo, Shuen-Yin Bai, and Yi-Jan Emery Chen, “A 44 GHz 0.18μm CMOS Superharmonic Frequency Divider” , IEEE MTT-S Int. Microw. Symp. Dig. , Jun. 2007
31. Yen-Chia Chen, Tang-Nian Luo, Yueh-Hua Yu, Yi-Jan Emery Chen, and Deukhyoun Heo, “A Low Power 0.18μm CMOS Even-Harmonic Mixer” , IEEE Asia-Pacific Microwave Conference , Yokohama, Japan , Dec. 2006
32. Shuen-Yin Bai, Tang-Nian Luo, and Yi-Jan Emery Chen, “A 1V 50 GHz Digital-Controlled CMOS Frequency Divider” , IEEE Asia-Pacific Microwave Conference , Yokohama, Japan , Dec. 2006
33. Yueh-Hua Yu, Yi-Jan Emery Chen, and Deukhyoun Heo, “An Ultra-low Voltage UWB CMOS Low Noise Amplifier” , IEEE Asia-Pacific Microwave Conference , Yokohama, Japan , Dec. 2006
34. P. Upadhyaya, D. Heo, and Y.-J. E. Chen, “A 1.3V Low Phase Noise 2-GHz CMOS Quadrature LC VCO” , IEEE EuMW2006 European Conference on Wireless Technology , Manchester UK , Sep. 2006
35. Chih-Yun Liu, Tang-Nian Luo, Yi-Jan Emery Chen, and Deukhyoun Heo, “A 2.4 GHz CMOS Doherty Power Amplifier” , IEEE MTT-S Int. Microwave Symp. , San Francisco, CA , Jun. 2006
36. Yao-I Huang and Yi-Jan Emery Chen, “A Fully-Integrated UWB CMOS LNA Using Network Synthesis Approach” , IEEE MTT-S Int. Microwave Symp. , San Francisco, CA , Jun. 2006
37. Yi-Jan Emery Chen, Shuen-Yin Bai, Tang-Nian Luo, Yueh-Hua Yu, and Deukhyoun Heo, “A Wide Operation Range CMOS Frequency Divider for 60GHz Dual-Conversion Receiver” , IEEE RFIC Symp. , San Francisco, CA , Jun. 2006
38. Le Wang, P. Upadhyaya, Pinping Sun, Yang Zhang, Deukhyoun Heo, Yi-Jan Emery Chen,and DongHo Jeong, “A 5.3GHz low-phase-noise LC VCO with harmonic filtering resistor” , Proc. IEEE ISCAS , May 2006
39. Wei-Min Lance Kuo, Yi-Jan Emery Chen, John D. Cressler, and Greg Freeman, “Effects of Emitter Scaling and Device Biasing on Millimeter-Wave VCO Performance in 200 GHz SiGe HBT Technology” , in proc. IEEE Asia-Pacific Microwave Conference , Dec. 2005
40. Tang-Nian Luo , Shuen-Yin Bai, Yi-Jan Emery Chen, Hsin-Shu Chen, and Deukhyoun Heo, “A 1-V CMOS VCO For 60-GHz Applications” , in proc. IEEE Asia-Pacific Microwave Conference , Dec. 2005
41. Parag Upadhyaya, Mallesh Rajashekharaiah, Deukhyoun Heo, David M. Rector, and Yi-Jan Emery Chen, “Low Power and Low Phase Noise 5.7 GHz LC VCO in OOK Transmitter for Neurosensory Application” , in 2005 IEEE MTT-S Int. Microwave Symp. Dig. , Jun. 2005
42. Parag Upadhyaya, Mallesh Rajashekharaiah, Deukhyoun Heo, and Yi-Jan Emery Chen, “A High IIP2 Doubly Balanced Sub-harmonic Mixer in 0.25μm CMOS for 5-GHz ISM Band Direct Conversion Receiver” , IEEE RFIC Symp. Tech. Dig. , Jun. 2005
43. M. Rajashekharaiah, P. Upadhyaya, D. Heo, E. Chen, “A New Gain Controllable On-Chip Active Balun for 5GHz Direct Conversion Receiver” , Proceedings, IEEE ISCAS , May 2005
44. Chih-Yun Liu, Yi-Jan Emery Chen, Deukhyoun Heo, “Impact of Bias Schemes on Doherty Power Amplifiers” , Proceedings, IEEE ISCAS , May 2005
45. P. Upadhyaya, M. Rajashekharaiah, D. Heo, D. M. Rector, Yi-Jan Emery Chen, “100 Mbs OOK transmitter with low power and low phase noise LC VCO for neurosensory application” , Proceedings, IEEE SoutheastCon , Apr. 2005
46. Yi-Jan Emery Chen, Kai-Hong Wang, Tang-Nian Luo, Shuen-Yin Bai, Deukhyoun Heo, “Investigation of CMOS technology for 60-GHz applications” , Proceedings, IEEE SoutheastCon , Apr. 2005
47. P. Upadhyaya, M. Rajashekharaiah, Yang Zhang, Deukhyoun Heo, Yi-Jan Emery Chen, “A 5 GHz novel 0.18μm inductor-less CMOS sub-harmonic mixer” , IEEE Workshop on Microelectronics and Electron Devices WMED Dig. , Apr. 2005
48. M. Rajashekharaiah, P. Upadhyaya, Deukhyoun Heo, and Yi-Jan Emery Chen, “A new 0.25um CMOS on-chip active balun with gain controllability for 5GHz DCR” , Proc. IEEE SoutheastCon , Apr. 2005
49. Parag Upadhyaya, Mallesh Rajashekharaiah, Deukhyoun Heo, Yi-Jan Emery Chen, “A New 0.25-µm CMOS Doubly Balanced Sub-Harmonic Mixer for 5-GHz ISM Band Direct Conversion Receiver” , Proceeding, IEEE International Conference on Solid-State and Integrated Circuits Technology , Oct. 2004
50. Mallesh Rajashekharaiah, Parag Upadhyaya, Deukhyoun Heo, Yi-Jan Emery Chen, “A 5GHz LNA with New Gain Controllable On-Chip Active Balun for ISM Band Applications” , International Conference on Soli-State and Integrated Circuits Technology , Beijing, China , Oct. 2004
51. Parag Upadhyaya, Mallesh Rajashekharaiah, Deukhyoun Heo, Yi-Jan Emery Chen, “A New 5-GHz ISM Band CMOS Doubly Balanced Sub-Harmonic Mixer for Direct Conversion Receiver” , IEEE European Conference on Wireless Technology , Oct. 2004
52. A. Raghavan, U. Jalan, S. Chakraborty, Chang-Ho Lee, J. Laskar, Yi-Jan Emery Chen, JongSoo Lee, J. D. Cressler, G. Freeman, and A. Joseph, “A millimeter-wave linear low noise amplifier in sige HBT technology with substrate parasitic model” , Proc. IEEE 34th European Microwave Conference , Oct. 2004
53. Yi-Jan Emery Chen, Wei-Min Lance Kuo, Jongsoo Lee, John D. Cressler, Joy Laskar, and Greg Freeman, “A Low Power Ka-Band SiGe HBT VCO Using Line Inductors” , IEEE RFIC Sympostim , Fort Worth , Jun. 2004
54. Wei-Min Lance Kuo, John D. Cressler, Yi-Jan Emery Chen, Alvin J. Joseph, “A 21-GHz Inductor-less Quadrature Ring Oscillator Implemented in SiGe HBT Technology” , ISTDM , Frankfurt, Germany , May 2004
55. Bhaskar Banerjee, Sunitha Venkataraman, Yuan Lu, Sebastien Nuttinck, Deukhyoun Heo, Yi-Jan Emery Chen, John D. Cressler, Joy Laskar, Greg Freeman, and Dave Ahlgren,, “Cryogenic Performance of a 200 GHz SiGe HBT Technology” , Proceedings, 2003 IEEE Bipolar/BiCMOS Circuits and Technology Meeting, , Sep. 2003
56. S. Chakraborty, K. Lim, A. Sutono, E. Chen, S. Yoo, A. Obatoyinbo, and J. Laskar, “Development of An Integrated Bluetooth RF Transceiver Module Using Multi-layer System on Package Technology” , Proceedings, 2001 IEEE Radio and Wireless Conference , Aug. 2001
57. Yong-Kyu Yoon, Emery Chen, Mark G. Allen, and Joy Laskar, “Embedded Solenoid Inductors for RF CMOS Power Amplifiers” , Proceedings of the 11th International Conference on Solid-State Sensors and Actuators, TRANSDUCERS’01/EUROSENSORS XV , Munich, Germany , Jun. 2001
58. Y. E. Chen, D. Bien, D. Heo, and J. Laskar, “Q-Enhancement of Spiral Inductors with N+-Diffusion Patterned Ground Shields” , Digest, 2001 IEEE MTT-S Int’l Microwave Symposium , May 2001
59. Y. E. Chen, Y. Yoon, J. Laskar, and M. Allen, “A 2.4-GHz Integrated CMOS Power Amplifier with Micromachined Inductors” , Digest, 2001 IEEE MTT-S Int’l Microwave Symposium , May 2001
60. D. Heo, A. Sutono, E. Chen, E. Gebara, S. Yoo, Y. Suh, J. Laskar, E. Dalton, and M. Tentzeris, “A High Efficiency 0.25-mm CMOS PA with LTCC Multi-layer High-Q Integrated Passives for 2.4 GHz ISM Band” , Digest, 2001 IEEE MTT-S Int’l Microwave Symposium , May 2001
61. A. Sutono, D. Heo, E. Chen, J. Laskar, and W. R. Smith, “Compact Implementation of Component Library in LTCC Technology and Its Application to CMOS RF Power Amplifier Design” , 2000 IEEE-EPEP Digest , Scottsdale, AZ , Oct. 2000
62. E. Chen, D. Heo, M. Hamai, J. Laskar, and D. Bien, “0.24-um CMOS Technology for Bluetooth Power Applications” , Proceedings, 2000 IEEE Radio and Wireless Conference , Sep. 2000
63. Y. J. E. Chen, M. Hamai, D. Heo, A. Sutono, S. Yoo, and J. Laskar, “RF Power Amplifier Integration in CMOS Technology” , Digest, 2000 IEEE MTT-S Int’l Microwave Symposium , Jun. 2000
64. D. Heo, E. Gebara, E. Chen, S. Yoo, M. Hamai, and J. Laskar, “An Improved Deep Sub-micron MOSFET RF Nonlinear Model with New Breakdown Current Model and Drain to Substrate Nonlinear Coupling” , Digest, 2000 IEEE MTT-S Int’l Microwave Symposium , Jun. 2000
65. Yi-Jan E. Chen, Deukhyoun Heo, Joy Laskar, and Thomas Anderson, “Investigation of Q Enhancement for Inductors Processed in BiCMOS Technology” , Proceedings, 1999 IEEE Radio and Wireless Conference , Aug. 1999
66. D. Heo, E. Chen, E. Gebara, S. Yoo, J. Laskar, and T. Anderson, “Temperature Dependent MOSFET RF Large signal Model Incorporating Self Heating Effects” , Digest, 1999 IEEE MTT-S Int’l. Microwave Symposium , Jun. 1999
Patents:
1. Jau-Horng Chen and Yi-Jan Emery Chen, “Multi-Level Pulse Modulated Polar Transmitter and Method of Generating Multi-Level Modulated Envelope Signals Carrying Modulated RF Signal” , United States, US20120002755A1, Jan. 2012
2. Jau-Horng Chen and Yi-Jan Emery Chen, “Multi-phase Pulse Modulation Polar Transmitter and Method of Generating a Pulse Modulated Envelope Signal Carrying Modulated RF Signal” , United States, US20110254636A1, Oct. 2011
3. Yi-Jan Emery Chen and Pang-Jung Liu, “Dual Mode Transient Recovery Control Method of DC-DC Converters” , United States, US007999528B2, Aug. 2011
4. Yi-Jan Emery Chen and Pang-Jung Liu, “Control Device for Transient Recovery of DC-DC Converters” , United States, US007994767B2, Aug. 2011
5. Chih Wei Chang and Yi-Jan Chen, “Signal Source Device” , United States, US20100219873A1, Sep. 2010
6. Yi-Jan Emery Chen, Pang-Jung Liu, Jyun-Ping Jiang, and Tsung-Yu Wu, “Output Buffer Circuit with Enhanced Slew Rate” , United States, US20100171727A1, Jul. 2010
7. Yi-Jan Emery Chen and Pang-Jung Liu, “Non-linear Interpolation Circuit, Interpolation Current Generating Circuit Thereof and Method for Converting Digital Data into Analog Data” , United States, US20100301904A1, Dec. 2010
8. Yi-Jan Emery Chen and Pang-Jung Liu, “Cascode-Cascade Power Amplifier Assembly” , United States, US007843269B2, Nov. 2010
9. Yi-Jan Emery Chen, and Tang-Nian Luo, “Dual-Injection Locked Frequency Dividing Circuit” , United States, US20090184739A1, Jul. 2009
10. Zhi-Yuan Liu, Yi-Jan Chen, “Bias Circuits and Signal Amplifier Circuits” , United States, US20080143444A1, Jun. 2008
Other publication:
1. 羅棠年, 陳怡然, “高速鎖相迴路之CMOS毫米波除頻器” , 零組件雜誌l,vol. 202, pp. 36-43, Aug. 2008
2. 林鴻源, 陳怡然, “半導體在手機射頻前端的趨勢” , 國立台灣大學系統晶片中心通信, no. 15, Sep. 2006
3. 劉致元, 陳怡然, and John D. Cressler, “矽化鍺技術的射頻應用” , 新電子科技雜誌, Apr. 2004
4. 陳怡然, “系統單晶片之外的另一種選擇─SOP” , 新電子科技雜誌，pp. 217-221, Dec. 2003