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Home → Faculty → Dr. Zuo-Min Tsai Associate Professor
Dr. Zuo-Min Tsai
Dr. Zuo-Min Tsai
Associate Professor
Group:
EM Technology
Office:
ED704
Phone:
E-mail:
zuomintsai@gmail.com
Website:
Research:
Antenna Designs, Electromagnetic Theory, RF Circuit Designs
  • Biography
    Zuo-Min Tsai (Senior Member, IEEE) was born in Miaoli, Taiwan in 1979. He received the B.S. degree and the Ph.D. degree in communication engineering from the Department of Electrical Engineering from National Taiwan University, Taipei, Taiwan, in 2001 and 2006, respectively. From 2006 to 2011, he was a Postdoctoral Research Fellow with the Graduate Institute of Communication Engineering, National Taiwan University. In February 2019, he joined the faculty of the College of Electrical and Computer Engineering, Institute of Communications Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan, where he is currently an Associate Professor. His research interests include the design of microwave integrated circuits and microwave systems.

    Personal Information:

    o NYCU Academic Hub: https://scholar.nycu.edu.tw/zh/persons/zuo-min-tsai

     

  • Experience, Honors and Awards
    • 2022     Poster Presentation Award in the Telecommunications Discipline, Ministry of Science and Technology
    • 2021    Future Technology Award
    • 2020    Mr. Wu Ta-You Memorial Award, Ministry of Science and Technology
    • 2017    Youth Scholar Award, Taiwan Comprehensive University System
    • 2017    IEEE Senior Member

  • Research Highlights

    • Millimeter RFIC

     

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    Fig. 1 Frequency reconfigurable LNA

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     Fig. 2 Low error phase shifter

    The Electromagnetic Systems Laboratory focuses on developing crucial electromagnetic-related technologies. With the rapid advancements in millimeter-wave communication and radar systems in recent years, this laboratory primarily innovates in the architecture of phased-array systems. Additionally, it specializes in the development of autonomous key Radio Frequency Integrated Circuit (RFIC) components.

    Millimeter-wave phased array antennas are currently widely employed in fifth-generation mobile communication and satellite communication systems. Consequently, the development of crucial chips suitable for large-scale millimeter-wave array antennas has become a significant research focus. Our laboratory's circuit research spans various types, including power amplifiers, low-noise amplifiers, mixers, and phase shifters. The processes primarily involve CMOS or GaN fabrication. Fig. 1 illustrates a switchable low-noise amplifier. This amplifier utilizes switchable inductor technology to achieve input matching at minimal loss. The graph demonstrates excellent gains at both 28/39 GHz frequencies. Fig. 2 displays a low-error phase shifter. Employing a low-pass/high-pass architecture, this phase shifter controls amplitude errors within 0.2 dB in switchable phase shifters and boasts an impressive operational bandwidth. Additional relevant publications are detailed below.
    1. Hao-Hsuan Chen,  Zuo-Min Tsai, “Ka-/K-Band Frequency-Reconfigurable Single-Input Differential-Output Low-Noise Amplifier for 5G Applications” IEEE Microwave and Wireless Components Letters, vol. 33, no. 9, pp. 1297-1300, Sept. 2023. (Link)
    2. Yu-Hsiang Chang, Cheng-Hung Hsieh, Shi-Peng Cheng, Yiming Li, Seiji Samukawa, Tzong-Lin Wu, and Zuo-Min Tsai, "A 0.6-dB Low Loss and 3–165 GHz Wideband Phase Difference Sub-THz Coupler in 0.18-μm CMOS," IEEE Microwave and Wireless Components Letters, vol. 32, no. 6, pp. 531-534, June 2022. (Link)
    3. Hao-Hsuan Chen, Wei-Chung Cheng, Cheng-Hung Hsieh, and Zuo-Min Tsai, "Design and Analysis of High-Gain and Compact Single-Input Differential-Output Low Noise Amplifier for 5G Applications," IEEE Microwave and Wireless Components Letters, vol. 32, no. 6, pp. 535-538, June 2022. (Link)
    4. Yen Heng Lin, Zuo-Min Tsai  , “A wideband compact 5-Bit phase shifter with low loss and RMS errors for 5G applications  ,” IEEE Microwave and Wireless Components Letters, vol.31, issue.10, pp. 1134 - 1137, Aug. 2021. (Link)
    5. Yen Heng Lin, Zuo-Min Tsai, “Frequency-reconfigurable phase shifter based on a 65-nm CMOS process for 5G applications  ,”  IEEE Transactions on Circuits and Systems II: Express Briefs, vol.68, issue.8, pp. 2825 - 2829, March 2021. (Link)
     

    • Phased Array System Architecture Development

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    In the architecture of phased arrays, there exist numerous innovative possibilities. Our research stems from the concept of vector-synthesized phase shifters. Expanding on the 90-degree coupler required for vector-synthesized phase shifters, theoretical analysis suggests that coupling this circuit with amplitude adjustment circuits can grant functionalities akin to those of phased array antennas. Moreover, it allows for beamwidth adjustment and synthesis of other beam shapes. Importantly, this architecture significantly reduces the use of active components, achieves higher gains, and enhances the precision of beam steering angles. Relevant publications regarding this research are listed below.
    1. Yi-Ting Lin, Zuo-Min Tsai, Jen-Ming Wu, "High-Accuracy, High-Gain Phased Array Utilizing Matrix-Sum and Tunable Amplifier Techniques," in IEEE Access, vol. 11, pp. 103377-103393, September 2023. (Link to be provided)

  • Journals
    • Cheng-Hung Hsieh; Tzu-Chieh Hong; Chiung-Yi Yang; Yi-Ho Chen; Xin-Ren Yu; Wen-Hsiang Lu; Ricky W. Chuang; Zuo-Min Tsai; Yao-Jen Lee; Yiming Li; Wen-Fa Wu; Tien-Sheng Chao; Seiji Samukawa; Yeong-Her Wang; Wen-Kuan Yeh; Jenn-Hwan Tarng , “A Harmonic Radar Tag With High Detection Range Utilizing Ge FinFETs CMOS Technology,” IEEE Electron Device Letters, Vol.43, issue: 11, pp. 1798 - 1801, November 2022. (Impact Factor: 4.816, Citation: 0)
    • H.-C. Yen, L.-Y. Ou Yang and Z.-M. Tsai, "3-D indoor localization and identification through rssi-based angle of arrival estimation with real Wi-Fi signals," in IEEE Transactions on Microwave Theory and Techniques, vol. 70, no. 10, pp. 4511-4527, Oct. 2022, doi: 10.1109/TMTT.2022.3194563.
    • Yu-Hsiang Chang, Cheng-Hung Hsieh, Shi-Peng Cheng, Yiming Li, Seiji Samukawa, Tzong-Lin Wu, and Zuo-Min Tsai, "A 0.6-dB Low Loss and 3–165 GHz Wideband Phase Difference Sub-THz Coupler in 0.18-μm CMOS," IEEE Microwave and Wireless Components Letters, vol. 32, no. 6, pp. 531-534, June 2022. (Impact Factor: 2.719, Citation: 0)
    • Hao-Hsuan Chen, Wei-Chung Cheng, Cheng-Hung Hsieh, and Zuo-Min Tsai, "Design and Analysis of High-Gain and Compact Single-Input Differential-Output Low Noise Amplifier for 5G Applications," IEEE Microwave and Wireless Components Letters, vol. 32, no. 6, pp. 535-538, June 2022. (Impact Factor: 2.719, Citation: 0)
    • Wei Chung Cheng, Yi Qi Lin, Wern Ho Sheen, Cheng Hung Hsieh, Jeen Hwan Tarng, and Zuo Min Tsai, “Measurement-based delay, angular dispersion and propagation loss characteristics of outdoor propagation in beam domain and multi-beam operation at 38 GHz for 5-G communication systems,” IET Microwaves, Antennas & Propagation, vol. 16, pp. 257-271, March 2022. (Impact Factor: 1.824, Citation: 0)
    • Yen Heng Lin, Zuo-Min Tsai, “A wideband compact 5-Bit phase shifter with low loss and RMS errors for 5G applications,” IEEE Microwave and Wireless Components Letters, vol.31, issue.10, pp. 1134 - 1137, Aug. 2021. (Impact Factor: 2.719, Citation: 3) 
    • Y.-H. Lin and Z.-M. Tsai, "Frequency-reconfigurable phase shifter based on a 65-nm CMOS process for 5G applications," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 68, no. 8, pp. 2825-2829, Aug. 2021, doi: 10.1109/TCSII.2021.3070051.
    • Cheng-Hung Hsieh, and Zuo-Min Tsai, “Design of an ultra-compact lowpass filter with ultra-sharp roll-off for UHF application,” IEICE Electronics Express, Vol.16, No.17, pp. 1-6, Aug. 2019. (Impact Factor: 0.578, Citation: 1) 
    • Cheng-Hung Hsieh, Yi-Ting Lin, Hsaing-Chieh Jhan, and Zuo-Min Tsai, “Application of a two-dimensional Butler matrix antenna array for tile-based beamforming,” IEICE Electronics Express, Vol.16, No.11, pp. 1-6, Aug. 2019.  (Impact Factor: 0.578, Citation: 2, 2019 IEICE Electronics Express Best Paper Award)
    • Zuo-Min Tsai, and Yu-Syuan Wang, “Hardware-based courseware for teaching the theory of transmission lines,” IEEE Antennas and Propagation Magazine, pp. 112-122, Feb. 2019. (Impact Factor: 3.179, Citation: 0)
    • T.-H. Liu, M.-L. Hsu, and Z.-M. Tsai, "High ranging accuracy and wide detection range interferometry based on frequency-sweeping technique with vital sign sensing function," in IEEE Transactions on Microwave Theory and Techniques, vol. 66, no. 9, pp. 4242-4251, Sept. 2018, doi: 10.1109/TMTT.2018.2854177.
    • Jhe-Hao Hu, Chau-Ching Chiong, Yuh-Jing Hwang, and Zuo-Min Tsai, "E-mand mixer with IP1dB design consideration for radio astronomical instrumentation," IEEE Microwave and wireless components letters, vol. 28, pp. 452-454, May, 2018. (Impact Factor: 2.719, Citation: 3)
    • Chih-Yuan Hsu, Shih-Cheng Lin, and Zuo-Min Tsai, “Quadband rectifier using resonant matching networks for enhanced harvesting capability," IEEE Microw. Wireless Compon. Lett, vol. 27, issue 7, pp. 669-671, July 2017. (Impact Factor: 2.719, Citation: 32)
    • T.-M. Tseng et al., "An efficient two-phase ilp-based algorithm for precise CMOS RFIC layout generation," in IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 36, no. 8, pp. 1313-1326, Aug. 2017, doi: 10.1109/TCAD.2016.2629445.
    • M. -L. Hsu et al., "Bee searching radar with high transmit–receive isolation using pulse pseudorandom code," in IEEE Transactions on Microwave Theory and Techniques, vol. 64, no. 12, pp. 4324-4335, Dec. 2016, doi: 10.1109/TMTT.2016.2613531.
    • Po-Jui Chiu, Wei-Chung Cheng, Dong-Chen Tsai, Zuo-Min Tsai, “Robust and fast near-field antenna measurement technique,” International Journal of Microwave and Wireless Technologies, vol. 8, pp. 777-784, April, 2016. (Impact Factor: 1.09, Citation: 2)
    • Wen-Jiao Liao, Ruey-Beei Wu, Tzong-Lin Wu, Tzyh-Ghuang Ma, Yi-Hsin Pang, Zuo-Min Tsai, Hui-Hung Yu, Kuo-Ming Tu, Hsi-Ching Lin, Song Tsuen Peng, “Promoting effective education in electromagnetics: Taiwan's school of accessible and visualized electromagnetics formed [education corner],” IEEE Antennas and Propagation Magazine, vol. 58, pp. 99-129, Feb., 2016. (Impact Factor: 3.179, Citation: 5)
    • D.-C. Tsai, Z.-M. Tsai, and H. H. Chen, "A simulation model for continuous autofocus design," in IEEE Transactions on Consumer Electronics, vol. 59, no. 4, pp. 731-737, November 2013, doi: 10.1109/TCE.2013.6689683.
    • Y.-H. Hsiao, Z.-M. Tsai, H.-C. Liao, J.-C. Kao, and H. Wang, "Millimeter-Wave CMOS Power Amplifiers With High Output Power and Wideband Performances," in IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 12, pp. 4520-4533, Dec. 2013, doi: 10.1109/TMTT.2013.2288223.
    • P.-H. Tsai, Y.-H. Lin, J.-L. Kuo, Z.-M. Tsai, and H. Wang, "Broadband balanced frequency doublers with fundamental rejection enhancement using a novel compensated marchand balun," in IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 5, pp. 1913-1923, May 2013, doi: 10.1109/TMTT.2013.2255618.
    • Pei-Hung Jau, Zuo-Min Tsai, Nai-Chung Kuo, Jui-Chi Kao, Kun-You Lin, Fan-Ren Chang, En-Cheng Yang and Huei Wang, “Signal processing for harmonic pulse radar based on spread spectrum technology,” IET Radar, Sonar & Navigation, Aug. 2013.
    • Z.-M. Tsai, H.-C. Liao, Y.-H. Hsiao, and H. Wang, ”V-band high data-rate I/Q modulator and demodulator with a power-locked loop LO source in 0.15-µm GaAs pHEMT technology,” IEEE Transactions Microwave and Tech., vol. 61, pp. 2670 – 2684, July 2013. (Impact Factor: 4.381, Citation: 15)
    • Z.-M. Tsai, Y.-C. Wu, S.-Y. Chen, T. Lee, and H. Wang, "A V-band on-wafer near-field antenna measurement system using an IC probe station," in IEEE Transactions on Antennas and Propagation, vol. 61, no. 4, pp. 2058-2067, April 2013, doi: 10.1109/TAP.2012.2237091.
    • Z.-M. Tsai et al., "A high-range-accuracy and high-sensitivity harmonic Radar using pulse pseudorandom code for bee searching," in IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 1, pp. 666-675, Jan. 2013, doi: 10.1109/TMTT.2012.2230020.
    • J.-C. Kao, Z.-M. Tsai, K.-Y. Lin, and H. Wang, "A modified Wilkinson power divider with isolation bandwidth improvement," in IEEE Transactions on Microwave Theory and Techniques, vol. 60, no. 9, pp. 2768-2780, Sept. 2012, doi: 10.1109/TMTT.2012.2206402.
    • J.-J. Kuo et al., "Design and analysis of down-conversion gate/base-pumped harmonic mixers using novel reduced-size 180° hybrid with different input frequencies," in IEEE Transactions on Microwave Theory and Techniques, vol. 60, no. 8, pp. 2473-2485, Aug. 2012, doi: 10.1109/TMTT.2012.2202039.
    • N.-C. Kuo, J.-C. Kao, Z.-M. Tsai, K.-Y. Lin, and H. Wang, "A 60-GHz frequency tripler with gain and dynamic-range enhancement," in IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 3, pp. 660-671, March 2011, doi: 10.1109/TMTT.2010.2103086.
    • J.-J. Kuo, Z.-M. Tsai, K.-Y. Lin, and H. Wang, "Design and analysis of novel linearization technique of cascode cell in a 60-GHz CMOS demodulator," in IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 2, pp. 456-465, Feb. 2011, doi: 10.1109/TMTT.2010.2095424.
    • N.-C. Kuo et al., "DC/RF Hysteresis in microwave pHEMT amplifier induced by gate current—diagnosis and elimination," in IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 11, pp. 2919-2930, Nov. 2011, doi: 10.1109/TMTT.2011.2160966.
    • P.-C. Huang, Z.-M. Tsai, K.-Y. Lin, and H. Wang, "A high-efficiency, broadband CMOS power amplifier for cognitive radio applications," in IEEE Transactions on Microwave Theory and Techniques, vol. 58, no. 12, pp. 3556-3565, Dec. 2010, doi: 10.1109/TMTT.2010.2086351.
    • Jhe-Jia Kuo, Zuo-Min Tsai, Ping-Chen Huang, Chau-Ching Chiong, Kun-You Lin and Huei Wang, “A wide tuning range voltage controlled oscillator using common-base configuration and inductive feedback,” IEEE Microw. Wireless Compon Lett, vol. 19, no. 10, pp. 653-655, Oct. 2009. (Impact Factor: 2.719, Citation: 10)
    • Jing-Lin Kuo, Zuo-Min Tsai, Kun-You Lin, and Huei Wang, “A 50 to 70 GHz power amplifier using 90 nm CMOS technology," IEEE Microw. Wireless Compon. Lett, vol. 19, no. 1, pp. 45-47, Jan. 2009. (Impact Factor: 2.719, Citation: 40)
    • Huei Wang, Kun-You Lin, Zuo-Min Tsai, Liang-Hung Lu, Hsin-Chia Lu, Chi-Hsueh Wang, Jeng-Han Tsai, Tian-Wei Huang, and Yi-Cheng Lin, “MMICs in the millimeter-wave regime: current status and future trends for system on chip (SOC) and system in package (SIP) applications," IEEE Microwave Magazine, vol. 10, no. 1, pp. 99-117, Feb. 2009. (Impact Factor: 3.062, Citation: 43)
    • Yu-Sian Jiang, Zuo-Min Tsai, Jeng-Han Tsai, Hsien-Te Chen, and Huei Wang “A 86 to 108 GHz amplifier in 90 nm CMOS," IEEE Microw. Wireless Compon. Lett., vol. 18, no. 2, pp. 124-126, Feb. 2008. (Impact Factor: 2.719, Citation: 43)
    • R.-B. Lai, S.-F. Chao, Z.-M. Tsai, J. Lee, and H. Wang, "Topology analysis and design of passive HEMT millimeter-wave multiple-port switches," in IEEE Transactions on Microwave Theory and Techniques, vol. 56, no. 7, pp. 1545-1554, July 2008, doi: 10.1109/TMTT.2008.924352.
    • T.-P. Wang, Z.-M. Tsai, K.-J. Sun, and H. Wang, "Phase-noise reduction of X-band push–push oscillator with second-harmonic self-injection techniques," in IEEE Transactions on Microwave Theory and Techniques, vol. 55, no. 1, pp. 66-77, Jan. 2007, doi: 10.1109/TMTT.2006.886912.
    • Zuo-Min Tsai, Chin-Shen Lin, C.F.Huang, John G.J.Chern, and Huei Wang, “A fundamental 90-GHz CMOS VCO using new ring-coupled quad," IEEE Microwave and Wireless Component Letters, vol. 17, no. 3, pp. 226-228, March 2007. (Impact Factor: 3.1792.719, Citation: 26)
    • Z.-M. Tsai, Y.-S. Jiang, J. Lee, K.-Y. Lin, and H. Wang, "Analysis and design of bandpass single-pole–double-throw FET filter-integrated switches," in IEEE Transactions on Microwave Theory and Techniques, vol. 55, no. 8, pp. 1601-1610, Aug. 2007, doi: 10.1109/TMTT.2007.901132.
    • Hong-Yeh Chang, Ming-Fong Lei, Chin-Shen Lin, Yi-Hsien Cho, Zuo-Min Tsai, and Huei Wang, “A 46-GHz direct wide modulation bandwidth ASK modulator in 0.13-μm CMOS technology," IEEE Microwave and Wireless Component Letters, vol. 17, no. 9, pp.691-693, Sept. 2007. (Impact Factor: 2.719, Citation: 20)
    • M.-F. Lei, Z.-M. Tsai, K.-Y. Lin, and H. Wang, "Design and analysis of stacked power amplifier in series-input and series-output configuration," in IEEE Transactions on Microwave Theory and Techniques, vol. 55, no. 12, pp. 2802-2812, Dec. 2007, doi: 10.1109/TMTT.2007.909147.
    • S.-F. Chao, C.-C. Kuo, Z.-M. Tsai, K.-Y. Lin, and H. Wang, "40-GHz MMIC SPDT and multiple-port bandpass filter-integrated switches," in IEEE Transactions on Microwave Theory and Techniques, vol. 55, no. 12, pp. 2691-2699, Dec. 2007, doi: 10.1109/TMTT.2007.909142.
    • M.-C. Yeh, Z.-M. Tsai, R.-C. Liu, K.-Y. Lin, Y.-T. Chang, and H. Wang, "Design and analysis for a miniature CMOS SPDT switch using body-floating technique to improve power performance," IEEE Transactions on Microwave Theory and Tech, vol. 54, no. 1, pp. 31-39, Jan. 2006. (Impact Factor: 4.381, Citation: 172)
    • K.-J. Sun, Z.-M. Tsai, K.-Y. Lin, and H. Wang, "A noise optimization formulation for CMOS low-noise amplifiers with on-chip low-Q inductors,” IEEE Transactions on Microwave Theory and Tech., vol. 54, no. 4, part 1, pp. 1554-1560, April 2006. (Impact Factor: 4.381, Citation: 36)
    • Z.-M. Tsai, K.-J. Sun, George D. Vendelin, and H. Wang, "A new feedback method for power amplifier with unilateralization and improved output return loss,” IEEE Transactions. on Microwave Theory and Tech., vol. 54, no. 4, part 1, pp. 1590-1597, April 2006. (Impact Factor: 4.381, Citation: 12)
    • Z.-M. Tsai, M.-C. Yeh, H.-Y. Chang, M.-F. Lei, K.-Y. Lin, C.-S. Lin, and H. Wang, "FET-integrated CPW and the application in filter synthesis design method on traveling-wave switch above 100 GHz,” IEEE Transactions on Microwave Theory and Tech., vol. 54, no. 5, pp. 2090-2097, May 2006. (Impact Factor: 4.381, Citation: 25)
    • S.-F. Chao, C.-H. Wu, Z.-M. Tsai, H. Wang and C. H. Chen, "Electronically switchable bandpass filters using loaded stepped-impedance resonators," in IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 12, pp. 4193-4201, Dec. 2006, doi: 10.1109/TMTT.2006.885898.
    • Kang-Wei Fan, Ching-Chih Weng, Zuo-Min Tsai, Huei Wang and Shyh-Kang Jeng, “K-Band MMIC active band-pass filters," IEEE Microwave and Wireless Component Letters, vol. 15, no. 1, pp. 19-21, Jan. 2005. (Impact Factor: 2.719, Citation: 20)

  • Conference Papers
    • Zuo-Min Tsai, Yu-Hsiang Chang, Kai-Cheng Sie, Cheng-Hung Hsieh, Alex Yang, "Multiple-Input Multiple-Output-Beam Mixing Radar for Fast Sweeping Applications," 2022 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), Busan, Korea, 29-31 August, 2022, pp. 228-230. (Citation: 0)
    •  Yu-Jen Huang, Cheng-Hung Hsieh, and Zuo-Min Tsai, “Design of microstrip sextaplexer based on coupled band-pass filters with common feedline technique,” 2021 Asia-Pacific Microwave Conference (APMC), Brisbane, Australia, 28 November - 01 December, 2021.  (Citation: 0)
    •  Cheng-Hung Hsieh, Yu-Jen Huang, and Zuo-Min Tsai, “An UHF Sharp Roll-Off and Wide Rejection Band Compact Low-Pass Filter with The Highest Figure of Merit for Merchandise,” 2021 Asia-Pacific Microwave Conference (APMC), Brisbane, Australia, 28 November - 01 December, 2021.  (Citation: 0)
    •  Zuo-Min Tsai, Shiang-Jie Jan, and Wei-Jin Chen, ”Millimeter-wave real time radar based on sliding correlation technique,” 2020 Asia-Pacific Microwave Conference (APMC), Hong Kong, 08-11 December, 2020.  (Citation: 0)
    •  Chao-Hsuan Chen, Ya-Shu Yang, Chieh-Yang Chen, Yun-Che Hsieh, Zuo-Min Tsai, Yiming Li, “Circuit-Simulation-Based Design Optimization of 3.5 GHz Doherty Power Amplifier via Multi-Objective Evolutionary Algorithm and Unified Optimization Framework,” 2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), Hiroshima, Japan, 02-04 September, 2020.  (Citation: 1)
    •  Yi-Hsin Pang, Tzyh-Ghuang Ma, Zuo-Min Tsai, Ruey-Beei Wu, “An Interactive Web-based Learning Module for Metallic Rectangular Waveguides,” 2019 IEEE MTT-S International Microwave and RF Conference (IMARC), Mumbai, India,13-15 December, 2019.  (Citation: 0)
    •  Tzu-Yu Hsia, Xin-Yi Li, Liang-Yu Ou Yang, Zuo-Min Tsai, Shih-Yuan Chen, “Differential Low Noise Amplifier for S-Band Phased-Array Radar in 0.18-µm CMOS Technology,” 2019 IEEE Asia-Pacific Microwave Conference (APMC), Singapore, 10-13 December, 2019. (Citation: 0)
    •  Wen-Tron Shay, Kuan-Ju Shen, Yu-Rong Chen, Ying-Ying Lin, Zuo-Min Tsai, Jenn-Hwen Tarng, “Millimeter-wave Channel Modelling and Ray-tracing Method Validation,” 2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall), Xiamen, China, 17-20 December, 2019. (Citation: 0)
    •  Niraj Man Shrestha, Chao-Hsuan Chen, Zuo-Min Tsai, Yiming Li, Jenn-Hawn Tarng, Seiji Samukawa, “Barrier Engineering of Lattice Matched AlInGaN/ GaN Heterostructure Toward High Performance E-mode Operation,” 2019 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD), Udine, Italy, 04-06 September, 2019. (Citation: 0)
    •  Cheng-Hung Hsieh, Yi-Ting Lin, Hsiang-Chieh Jhan and Zuo-Min Tsai, "A Novel Concept for 2D Butler Matrix with Multi-Layers Technology," 2018 Asia-Pacific Microwave Conference (APMC), Kyoto, Japan, 06-09 November, 2018, pp. 533-535. (Citation: 4)
    •  Zuo-Min Tsai, Ting-Wei Cheng, Huei Wang, Kun-You Lin, Feng-Li Lian, Chieh Ting, En-Cheng Yang, "A Light Weight Transponder for Bee Searching Harmonic Radar," 2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP), Auckland, New Zealand, 05-08 August, 2018, pp. 498-500. (Citation: 3)
    •  Huei Wang, Jung-Lin Lin, Zuo-Min Tsai, "Review of Millimeter-Wave CMOS Power Amplifiers," 2018 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), Melbourne, Australia, 15-17 August, 2018. (Citation: 1)
    •  Feifei Chen, Yunshan Wang, Jung-Lin Lin, Zuo-Min Tsai, Huei Wang, "A 24-GHz High Linearity Down-conversion Mixer in 90-nm CMOS," 2018 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), Melbourne, Australia, 15-17 August, 2018. (Citation: 3)
    •  Marcus Comiter, Michael Crouse, H. T. Kung, Jenn-Hwan Tarng, Zuo-Min Tsai, Wei-Ting Wu, Ta-Sung Lee, M. C. Frank Chang, and Yen-Cheng Kuan, "Millimeter-wave Field Experiments with Many Antenna Configurations for Indoor Multipath Environments, " 2017 IEEE Global Communications Conference (GLOBECOM) , Singapore, 4-8 Dec., 2017. (Citation: 5)
    •  Yu-Jen Huang, Cheng-Hung Hsieh, Zuo-Min Tsai, “A compact, high-selectivity, and wide passband semi-lumped 70 MHz high-pass filter,” 2017 IEEE Asia Pacific Microwave Conference (APMC), Kuala Lumper, Malaysia, 13-16 Nov., 2017. (Citation: 1)
    •  Cheng-Hung Hsieh, and Zuo-Min Tsai, "A K-band linear/normal/efficient tri-mode power amplifier in 0.18-um CMOS with body bias adoption," 2017 Asia Pacific Microwave Conference (APMC), Kuala Lumper, Malaysia, 13-16 Nov., 2017. (Citation: 2)
    •  Cheng-Hung Hsieh, and Zuo-Min Tsai, "A K-band ultra-compact transformer combined power amplifier with total chip size 0.2 mm2 in 0.18-um CMOS process," 2017 Asia Pacific Microwave Conference (APMC), Kuala Lumper, Malaysia, 13-16 Nov., 2017. (Citation: 1)
    •  Yi-Qi Lin, Wei-Chung Cheng, Tsung-Hsin Liu, Yu Rong Chen, Wern-Ho Sheen, Zuo-Min Tsai, “Accurate synchronization method of 38-GHz 5G channel measurement system,” 2017 47th European Microwave Conference (EuMC), Nuremberg, Germany, 10-12 October, 2017. (Citation: 5)
    •  Zuo-Min Tsai, Ruey-Beei Wu, Tzong-Lin Wu, Shih-Yuan Chen, Shau-Gang Mao, Tzyh-Ghuang Ma, “The competitions of electromagnetic for undergraduate students in Taiwan: Taiwan creative electromagnetic implementation competition T-CEIC,” 2017 IEEE International Conference on Computational Electromagnetics (ICCEM), Kumamoto, Japan, 08-10 March, 2017. (Citation: 0)
    •  Zuo-Min Tsai, "38-GHz CMOS TRx and Channel Model for 5G Systems," Workshop of 2017 IEEE MTT-S International Microwave Symposium, Hawaii, USA, 4-9 June, 2017.
    •  Cheng-Hung Hsieh, and Zuo-Min Tsai, "A K-band 16-way combined high power amplifier in 0.18-um CMOS," 5th IEEE Global Conference on Consumer Electronics (GCCE), Kyoto, Japan, 11-14 Oct., 2016. (Citation: 0)
    •  Tsung-Hsin Liu, and Zuo-Min Tsai, "Mutual interference of pseudorandom noise radar in automotive collision avoidance application at 24 GHz," 5th IEEE Global Conference on Consumer Electronics (GCCE), Kyoto, Japan, 11-14 Oct., 2016. (Citation: 8)
    •  Cheng-Hung Hsieh, Zuo-Min Tsai, “A K-band to Ka-band CPW-like low loss transmission line in 0.18-um CMOS,” 2016 URSI Asia-Pacific Radio Science Conference (URSI AP-RASC), Seoul, Korea (South), 21-25 August, 2016. (Citation: 1)
    •  Zuo-Min Tsai, Kun-You Lin, and Huei Wang, "An X-Band MMIC HBT high efficiency power amplifier with lossless feedback technique," 2016 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), Taipei, Taiwan, 24-26 Aug., 2016. (Citation: 4)
    •  Yuh-Jing Hwang, Chau-Ching Chiong, Shou-Shien Weng, Yau-De Huang, Yue-Fang Kuo, Hong-Yeh Chang, Yo-Shen Lin, Zuo-Min Tsai, and Huei Wang, "Broadband radio-frequency integrated circuits and modules for astronomical instruments in Taiwan," 2016 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), Taipei, Taiwan, 24-26 Aug., 2016. (Citation: 0)
    •  Zuo-Min Tsai, and Po-Shien Li, "Butler matrix for harmonic radar applications," International Symposium on Fundamentals of Electrical Engineering (ISFEE), Bucharest, Romania, 30 June-2 July, 2016. (Citation: 1)
    •  Zuo-Min Tsai, Fan-Ren Chang, Kun-You Lin, En-Cheng Yang, Feng-Li Lian and Huei Wang, "Application of harmonic radar on the research of bees’ behavior," International Symposium on Fundamentals of Electrical Engineering (ISFEE), Bucharest, Romania, 30 June-2 July, 2016. (Citation: 1)
    •  Yu-Ting Liu, Miao-Lin Hsu, Huei Wang, and Zuo-Min Tsai, "A differential miniature transponder for 9.4/18.8 GHz harmonic bee searching radar with low gain degradation from bee’s body," 2016 IEEE International Microwave Symposium (IMS2016), San Francisco, USA, 22-27 May, 2016. (Citation: 0)
    •  Chung-Ping Lin, Beng-Meng Chen, and Zuo-Min Tsai, "A multiple-band matching network using bypass circuits concept applying on active filter," 2015 Asia Pacific Microwave Conference (APMC2015), Nanjing, China, 6-9 Dec., 2015. (Citation: 1)
    •  Wei-Chung Cheng, Tsung-Hsin Liu, Miao-Lin Hsu, Zuo-Min Tsai, Wern-Ho Sheen, “15 GHz propagation channel measurement at a university campus for the 5G spectrum” 2015 Asia Pacific Microwave Conference (APMC2015), Nanjing, China, 6-9 Dec., 2015. (Citation: 6)
    •  Beng-Meng Chen, and Zuo-Min Tsai, "160 GHz Parametric Passive Frequency Doubler in CMOS 180nm Technology," 2015 International Workshop on Electromagnetics and R&S Student Competition (iWEM 2015), Hsinchu, Taiwan, Nov. 16-18, 2015. (Citation: 0)
    •  Cheng-Hung Hsieh, and Zuo-Min Tsai, " A K Band High Power Amplifier in 180-nm CMOS," 2015 International Workshop on Electromagnetics and R&S Student Competition (iWEM 2015), Hsinchu, Taiwan, 16-18 Nov., 2015. (Citation: 0)
    •  Beng-Meng Chen, Chung-Ping Lin, and  Zuo-Min Tsai, "A wide-band matching network using SIR concept applying on amplifier for LTE/ISM/Wi-Fi/Bluetooth application," International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-Bio 2015), Taipei, Taiwan, 21-23 Sept., 2015. (Citation: 0)
    •  Cheng-Hung Hsieh, Da-Wei Pan, and Zuo-Min Tsai, "A 60 GHz Single-Chip CMOS Transceiver for High-Definition Video Transmission System Application," 2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT2015), Sendai, Japan, 26-28 Aug. 2015. (Citation: 1)
    •  Zuo-Min Tsai, Guan-Lin Chen, Yu-Ying Li, and Yu-Xuan Wang, "Transmission line teaching aids using slow-wave transmission line technique," IEEE 4th Asia-Pacific Conference on Antennas and Propagation (APCAP), Bali Island, Indonesia, 30 June-3 July, 2015. (Citation: 0)
    •  Po-Jui Chiu, Dong-Chen Tsai, and Zuo-Min Tsai, "Fast Near-Field Antenna Measurement Technique," 45th European Microwave Conference (EuMC), Paris, France, 7-10 Sept. 2015. (Citation: 3)
    •  Miao-Lin Hsu, Shiang-Jie Jan, Huei Wang, Fan-Ren Chang, Pei-Hung Jau, Kun-You Lin and Zuo-Min Tsai, "Portable 9.4/18.8 GHz harmonic radar system using PRN code principle," 45th European Microwave Conference (EuMC), Paris, France, 7-10 Sept. 2015. (Citation: 7)
    •  Hong-Yu Hsu, Pang-Meng Chen, Yen-Heng Lin, Yung-Ysiang Chiang, Mao-Ching Chiu, and Zuo-Min Tsai, "Harmonic radar using multiple receivers and angle of arrival positioning technique for environment with obstacles," 45th European Microwave Conference (EuMC), Paris, France, 7-10 Sept. 2015. (Citation: 2)
    •  Zuo-Min Tsai, “Lego approach to electromagnetic laboratory,” 2013 Asia-Pacific Radio Science Conference (APRASC), Taipei, Taiwan, 3-7 Sept., 2013. (Citation: 0)
    •  Yuh-Jing Hwang, and Zuo-Min Tsai, “Broadband GaAs PHEMT MMIC cascode mixer module for 31 – 50 GHz application,” 2013 Asia-Pacific Radio Science Conference (APRASC), Taipei, Taiwan, 3-7 Sept., 2013. (Citation: 0)
    •  Zuo-Min Tsai, Yuan-Hong Hsiao, and Huei Wang, “A 90-GHz power amplifier with 18-dBm output power and 26 GHz 3-dB bandwidth in standard RF 65-nm CMOS technology,” 2013 IEEE MTT-S International Microwave Symposium (IMS2013), Seattle, WS, USA, 2-7 June, 2013. (Citation: 9)
    •  Miaw-Lin Sheu, Cheng-Hong Shie, and Zuo-Min Tsai, “Wideband and miniaturized branch line,” 2012 Asia Pacific Microwave Conference (APMC), Kaohsiung, Taiwan, 4-7 Dec., 2012. (Citation: 0)
    •  Zuo-Min Tsai, Pei-Hung Jau, Nai-Chung Kuo, Jui-Chi Kao, Kun-You Lin, Fan-Ren Chang, En-Cheng Yang, and Huei Wang, “A High range resolution 9.4/18.8 GHz harmonic radar for bees searching,” 2012 IEEE MTT-S International Microwave Symposium (IMS2012), Montreal, Canada, 17-22 June, 2012. (Citation: 3)
    •  Zuo-Min Tsai, Hsin-Chiang Liao, Yuan-Hong Hsiao, Huei Wang, Jenny Yi-Chun Liu, Mau-Chung Frank Chang, Yu-Ming Teng, and Guo-Wei Huang, “A 1.2V Broadband D-band Power Amplifier with 13.2-dBm Output Power in Standard RF 65-nm CMOS,” 2012 IEEE MTT-S International Microwave Symposium (IMS2012), Montreal, Canada, 17-22 June, 2012.  (Citation: 11)
    •  Zuo-Min Tsai, Kun-You Lin, and Huei Wang, “A 71-80 GHz Medium Power Amplifier Using 4-mil 0.15-μm GaAs-PHEMT Technology,” 2011 Asia Pacific Microwave Conference (APMC), Melbourne, Australia, 5-8 Dec., 2011. (Citation: 0)
    •  Yi-Ching Wu, Shi-Kai Lin, Chau-Ching Chiong, Zuo-Min Tsai, and Huei Wang, “A W-band image-rejection mixer for astronomical observation system,” 2011 IEEE MTT-S International Microwave Symposium, Taoyuan (IMS2011), Baltimore, MD, USA, 5-10 June, 2011. (Citation: 2)
    •  Pei-Hung Jau, Zuo-Min Tsai, Fan-Ren Chang and Huei Wang, “The Specialized Positioning System for Bees,” 2010 International Symposium on GPS/GNSS, Taipei, Taiwan, 26-28 Oct., 2010. (Citation: 0)
    •  Wei-Je Tseng, Zuo-Min Tsai, and Huei Wang, “Ku-band phase shifter based on injection locked voltage control oscillator,” 2010 IEEE International Conference on Wireless Information Technology and Systems (ICWITS2010), Honolulu, HI, USA, 28 Aug.-3 Sept., 2010. (Citation: 2)
    •  Chi-Cheng Hung, Chau-Ching Chiong, Pin Chen, Yi-Chien Tsai, Zuo-Min Tsai, and Huei Wang, “A 72-114 GHz fully integrated frequency multiplier chain for astronomical applications in 0.15-μm mHEMT process,” 40th European Microwave Conference (EuMC), Paris, France, 28-30 Sept., 2010. (Citation: 1)
    •  Nai-Chung Kuo, Zuo-Min Tsai, Klaus Schmalz, Johann Christoph Scheytt, and Huei Wang, “A 52-75 GHz frequency quadrupler in 0.25-μm SiGe BiCMOS process,” 5th European Microwave Integrated Circuit Conference (EuMIC), Paris, France, 27-28 Sept., 2010. (Citation: 3)
    •  Ping-Song Chi, Zuo-Min Tsai, Jing-Lin Kuo, Kun-You Lin, and Huei Wang, “An X-band, 23.8-dBm fully integrated power amplifier with 25.8% PAE in 0.18-μm CMOS technology,” 5th European Microwave Integrated Circuit Conference (EuMIC), Paris, France, 27-28 Sept., 2010. (Citation: 0)
    •  Pin-Cheng Huang, Jing-Lin Kuo, Zuo-Min Tsai, Kun-You Lin, and Huei Wang, “A 22-dBm 24-GHz power amplifier using 0.18-μm CMOS technology,” 2010 IEEE MTT-S International Microwave Symposium (2010IMS), Anaheim, CA, USA, 23-28 May, 2010. (Citation: 8)
    •  Chi-Cheng Hung, Jing-Lin Kuo, Zuo-Min Tsai, Kun-You Lin, and Huei Wang, “A 22.5-dB gain, 20.1-dBm output power K-band power amplifier in 0.18-μm CMOS,” 2010 IEEE RFIC Symposium, Anaheim, CA, USA, 23-25 May, 2010. (Citation: 15)
    •  Zuo-Min Tsai, Jui-Chi Kao, Kun-You Lin, and Huei Wang, “A compact low dc consumption 24-GHz cascode HEMT VGA,” 2009 Asia Pacific Microwave Conference (APMC), Singapore, 7-10 Dec., 2009. (Citation: 3)
    •  Wei-Je Tseng, Chin-Shen Lin, Zuo-Min Tsai, and Huei Wang, “A miniature switching phase shifter in 0.18-μm CMOS,” 2009 Asia Pacific Microwave Conference (APMC), Singapore, 7-10 Dec., 2009. (Citation: 7)
    •  Zuo-Min Tsai, Jui-Chih Kao, Kun-You Lin, and Huei Wang, “A 24-48 GHz cascode mixer with dc to 15 GHz IF bandwidth for astronomy radio telescope applications,” 2009 European Microwave Integrated Circuit Conference (EuMIC), Rome, Italy, 28-29 Sept., 2009. (Citation: 1)
    •  Jhe-Chia Kuo, Wei-Heng Lin, Che-Chun Kuo, Jeffery Ronald Tseng, Zuo-Min Tsai, and Huei Wang, “A 71-76 GHz chip set for wireless communication in 65-nm CMOS technology,” 2009 IEEE MTT-S International Microwave Symposium (IMS2009), Boston, MA, USA, 7-12 June, 2009. (Citation: 6)
    •  Chi-Hsueh, Zuo-Min Tsai, Kun-You Lin, and Huei Wang, “A 60-GHz single-chip transceiver for WPAN applications,” 2008 Global Symposium on Millimeter Waves (GSMM’2008), pp. 245-248, Nanjing, China 21-24 April, 2008. (Citation: 5)
    •  Che-Chung Kuo, Zuo-Min Tsai, Jeng-Han Tsai, and Huei Wang, “A 71-76 GHz CMOS variable gain amplifier using current steering technique,” 2008 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Atlanta, GA, USA, 15-17, June, 2008. (Citation: 14)
    •  Jin-Lin Kuo, Zuo-Min Tsai, and Huei Wang, “A 19.1-dBm fully-integrated 24 GHz power amplifier using 0.18-μm CMOS technology,” 38th European Microwave Conference (EuMC) Proceedings, Netherlands, 27-31 Oct. 2008. (Citation: 0)
    •  Bo-Jiun Haung, Zuo-Min Tsai, Bo-Jr Huang, Kun-You Lin, Huei Wang and Chau-Ching Chiong, "A GaAs-based HBT 31-GHz frequency doubler with an on-chip voltage source,” 2008 Asia Pacific Microwave Conference (APMC), Hong Kong/Macau, China, 16-20 Dec. 2008. (Citation: 5)
    •  Jing-Lin Kuo, Zuo-Min Tsai, Kun-You Lin, and Huei Wang, "A V-band power amplifier in 0.13-μm CMOS,” 2008 Asia Pacific Microwave Conference (APMC), Hong Kong/Macau, China, 16-20 Dec. 2008. (Citation: 0)
    •  Kuo-Jung Sun, Zuo-Min Tsai, Kun-You Lin, and Huei Wang, “A 10.8-GHz CMOS low-noise amplifier using parallel-resonant inductor,” 2007 IEEE MTT-S International Microwave Symposium (IMS2007), Honolulu, HI, USA, 3-8 June 2007. (Citation: 14)
    •  Zuo-Min Tsai, Ming-Fong Lei, and Huei Wang, “An HBT 4-Cell monolithic stacked power amplifier,” 2007 IEEE MTT-S International Microwave Symposium (IMS2007), Honolulu, HI, USA, 3-8 June 2007. (Citation: 5)
    •  Shi-Fong, Che-Chung Kuo, Zuo-Min Tsai, and Huei Wang, “A 40-GHz MMIC SPDT bandpass filter integrated switch,” 2007 IEEE MTT-S International Microwave Symposium (IMS2007), Honolulu, HI, USA, 3-8 June 2007. (Citation: 2)
    •  Jeffery Lee, Zuo-Min Tsai, and Huei Wang, “A band-pass filter-integrated switch using MESFET and its power analysis,” 2006 IEEE MTT-S International Microwave Symposium (IMS2006), San Francisco, CA, 11-16 June 2006. (Citation: 12)
    •  Wen-Ren Lee, Shi-Fong Chao, Zuo-Min Tsai, Pin-Cheng Huang, Chun-Hsien Lien, Jeng-Han Tsai, and Huei Wang, "A high-efficiency, broadband and high output power PHEMT balanced K-Band doubler with integrated balun,” 2006 Asia Pacific Microwave Conference (APMC), vol. 2, pp. 763-766, Yokohama, Japan, 12-15 Dec. 2006. (Citation: 2)
    •  Mei-Chao Yeh, Zuo-Min Tsai, Kun-You Lin, Huei Wang, Chia-Yi Su, and Chih-Ping Chao, “A millimeter-wave wideband SPDT switch with traveling-wave concept using 0.13-μm CMOS process,” 2005 IEEE MTT-S International Microwave Symposium (IMS), Long Beach, CA, USA, 17-22 June 2005. (Citation: 0)
    •  Zuo-Min Tsai, Mei-Chao Yeh, Ming-Fong Lei, Hong-Yeh Chang, Chin-Shen Lin, and Huei Wang, “DC-to-135 GHz SPST and 15-to-135 GHz SPDT traveling wave switches using FET-integrated CPW line structure,” 2005 IEEE MTT-S International Microwave Symposium (IMS), Long Beach, CA, USA, 17-22 June 2005. (Citation: 7)
    •  Mei-Chao Yeh, Ren-Chieh Liu, Zuo-Min Tsai, and Huei Wang, “A miniature low-insertion-loss, high-power CMOS SPDT switch using floating-body technique for 2.4- and 5.8-GHz applications,” 2005 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), pp. 451-454, Long Beach, CA, USA, 12-14 June, 2005. (Citation: 9)
    •  Mei-Chao Yeh, Zuo-Min Tsai, and Huei Wang, “A miniature dc-to-50-GHz CMOS SPDT distributed switch,” 35th European Microwave Conference (EuMC), Paris, France, 4-6 Oct., 2005. (Citation: 2)
    •  Ching-Chih Weng, Zuo-Min Tsai, and Huei Wang, “A K-band miniature, high output power HBT MMIC balanced doubler with integrated balun,” 35th European Microwave Conference (EuMC), Paris, France, 4-6 Oct., 2005. (Citation: 6)
    •  Shih-Fong Chao, Zuo-Min Tsai, Kun-You Lin, Huei Wang, “Compact W-band SPQT switch using traveling wave concept,” European GAAS Conference Proceedings, Paris, France, 4-6 Oct., 2005. (Citation: 2)
    •  Mei-Chao Yeh, Zuo-Min Tsai, and Huei Wang, "A miniature singly balanced mixer using seven-symmetric-coupled-line marchand balun," 16th Asia Pacific Microwave Conference (APMC2004), New Dehli, India, 15-18 Dec., 2004. (Citation: 0)
    •  Ping-Yu Chen, Zuo-Min Tsai, Shey-Shi Lu, and Huei Wang, “An ultra low phase noise W-Band GaAs-based PHEMT MMIC CPW VCO,” 33rd European Microwave Conference (EuMC), vol. 2, pp. 503-507, Munich, German, 7-9 Oct., 2003. (Citation: 2)

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