招生需求：
歡迎有誌於模擬/射頻/毫米波/高速集成電路研究與設計🤦♂️、勇於創新的碩士🩱、博士研究生及博士後加入😇。
實驗室提供開放的科研環境👨🏫，與工業界接軌的項目和實習機會。
研究方向：
模擬/射頻/毫米波/高速集成電路設計
無線收發機芯片與系統
相控陣芯片與系統
AI輔助集成電路設計
教育背景👩🏼🎤：
2010年08月-2013年08月美國愛荷華州立大學，電子工程🥖，博士
2005年08月-2008年02月韓國信息通信大學(現韓國科學技術院)👴🏼，電子工程🧑🏻🎄，碩士
2001年09月-2005年07月上海理工大學，電子信息工程， 學士
工作學術經歷😮💨：
2023年07月-至今沐鸣娱乐💠，研究員，博士生導師
2013年07月-2023年07月三星半導體(美國)，高級工程師/主管工程師/資深主管工程師/首席工程師
2008年02月-2010年06月韓國電子通信研究院(ETRI)👱🏻🧑🏻🦯，研發工程師
代表性論文、著作及專利：
1. Y. Chen, X. Yu, S. Dey, V. Bhagavatula, C. Kuo, T. Chang, I. S.-C. Lu, and S. Son, A Phased-Array Receiver Front-End Using a Compact High Off-Impedance T/R Switch for n257/n258/n261 5G FR2 Cellular, 2023 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), San Diego, CA, USA, 2023, pp. 53-56, doi: 10.1109/RFIC54547.2023.10186152.
2. A. Verma, V. Bhagavatula, A. Singh, W. Wu, H. Nagarajan, P.-K. Lau, X. Yu, O. Elsayed, A. Jain, A. Sarkar, F. Zhang, C.-C. Kuo, P. McElwee, P.-Y. Chiang, C. Guo, Z. Bai, T. Chang, A. Mann, A. Rydin, X. Zhao, J. Lee, D. Yoon, C.-W. Yao, S. I. Lu, S. Son, T. B. Cho, A 16-Channel, 28/39GHz Dual-Polarized 5G FR2 Phased-Array Transceiver IC with a Quad-Stream IF Transceiver Supporting Non-Contiguous Carrier Aggregation up to 1.6GHz BW, 2022 IEEE International Solid- State Circuits Conference (ISSCC), San Francisco, CA, USA, 2022, pp. 1-3, doi: 10.1109/ISSCC42614.2022.9731664.
3. V. Bhagavatula, F. Zhang, C. Kuo, A. Sarkar, A. Verma, T. Chang, X. Yu, D.-Y. Yoon, I. S.-C. Lu, S. Son, T. B. Cho, A 5G FR2 Power-Amplifier With an Integrated Power-Detector for Closed-Loop EIRP Control, in IEEE Journal of Solid-State Circuits, vol. 57, no. 5, pp. 1257-1266, May 2022, doi: 10.1109/JSSC.2022.3146872.
4. C. Kuo, H. Zhang, A. Sarkar, X. Yu, V. Bhagavatula, A. Verma, T. Chang, S. I. Lu, D. Yoon, S. Son, T. B. Cho, A 5G FR2 (n257/n258/n261) Transmitter Front-End with a Temperature-Invariant Integrated Power Detector for Closed-Loop EIRP Control, 2021 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Atlanta, GA, USA, 2021, pp. 175-178, doi: 10.1109/RFIC51843.2021.9490447.
5. X. Yu, A. Jain, A. Singh, O. Elsayed, C. Kuo, H. Nagarajan, D. Yoon, V. Bhagavatula, I. S. Lu, S. Son, T. B. Cho, A 17.3-mW 0.46-mm2 26/28/39GHz Phased-Array Receiver Front-End with an I/Q-Current-Shared Active Phase Shifter for 5G User Equipment, 2021 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Atlanta, GA, USA, 2021, pp. 107-110, doi: 10.1109/RFIC51843.2021.9490463.
6. X. Yu, A. El-Gouhary and N. M. Neihart, A Transformer-Based Dual-Coupled Triple-Mode CMOS LC-VCO, in IEEE Transactions on Microwave Theory and Techniques, vol. 62, no. 9, pp. 2059-2070, Sept. 2014, doi: 10.1109/TMTT.2014.2332498.
7. N. M. Neihart, A. El-Gouhary, Y. Li, K. Sessou and X. Yu, Techniques for realizing reconfigurable RF building blocks for cognitive radio, 2013 IEEE 56th International Midwest Symposium on Circuits and Systems (MWSCAS), Columbus, OH, USA, 2013, pp. 876-879, doi: 10.1109/MWSCAS.2013.6674789.
8. X. Yu and N. M. Neihart, Analysis and Design of a Reconfigurable Multimode Low-Noise Amplifier Utilizing a Multitap Transformer, in IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 3, pp. 1236-1246, March 2013, doi: 10.1109/TMTT.2012.2237037.
9. X. Yu and N. M. Neihart, Design and characterization of symmetric multi-tap transformers, 2012 IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea (South), 2012, pp. 954-957, doi: 10.1109/ISCAS.2012.6272203.
10. X. Yu and N. M. Neihart, A 2–11 GHz reconfigurable multi-mode LNA in 0.13µm CMOS, 2012 IEEE Radio Frequency Integrated Circuits Symposium, Montreal, QC, Canada, 2012, pp. 475-478, doi: 10.1109/RFIC.2012.6242325.
11. N. M. Neihart, J. Brown and X. Yu, A Dual-Band 2.45/6 GHz CMOS LNA Utilizing a Dual-Resonant Transformer-Based Matching Network, in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 59, no. 8, pp. 1743-1751, Aug. 2012, doi: 10.1109/TCSI.2011.2180436.
12. X. Yu and N. M. Neihart, Integrated multi-tap transformer for reconfigurable multimode matching networks, 2011 IEEE International Symposium of Circuits and Systems (ISCAS), Rio de Janeiro, Brazil, 2011, pp. 1395-1398, doi: 10.1109/ISCAS.2011.5937833.
13. X. Yu, “Design of Reconfigurable Multi-Mode RF Circuits”, Ph.D. dissertation, Iowa State University, 2013.
14. X. Yu, “Ultra-Low Power Wake-up Receiver Front-End Design”, M.S. thesis, Information and Communications University (now KAIST), 2008.
15. 24 to 30GHz wide band CMOS power amplifier with turn-off mode high impedance, US Patent 11,689,162, granted in Jun. 2023.
16. Method of synchronizing the H and V phase in a dual-polarized phase array system, US Patent App. 17/695,460, filed in Oct. 2022.
17. “Band switching balun”, US Patent 11,245,426, granted in Feb. 2022.
18. Method and circuit for power consumption reduction in active phase shifters, US Patent 11,183,973, granted in Nov. 2021.
19. Low noise amplifier topology that simultaneously supports carrier aggregation and non-carrier aggregation, US Patent 93,62,975, granted in Jun. 2016.
20. “Wake-up receiver and wake-up method using duty-cycling and power off technique”, US Patent 8,285,243, granted in Oct. 2012.
21. “Super regenerative receiver and method for saving power of the same”, US Patent 8,170,523, granted in May 2012.
