Major Research Areas

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Research Summary

    Shau-Gang Mao received the Ph.D. degree in electrical engineering in 1998 from the National Taiwan University, Taipei, Taiwan, R.O.C. From 1998 to 2000, he fulfilled military service with the Coast Guard Administration, where he conducted projects on coastal surveillance and communication systems. From 2000 to 2002, he was with Da-Yeh University. He has been a professor at National Taipei University of Technology from 2002 to 2012. Since August 2012, he is a professor with the Department of Electrical Engineering and Graduate Institute of Communication Engineering, National Taiwan University, Taiwan. His research interests are in the areas of metamaterial, antenna, and active and passive circuits in RF front-end system. Dr. Mao was the secretary of the IEEE MTT-S Taipei Chapter in 2001 and the Electronic Communications in Taipei Section from 2007-2009. He received the Best Paper Award in 2001 Asia-Pacific Microwave Conference and the URSI Young Scientist Award in 2004. From 2012-2015 he was sponsored by National Science Council Outstanding Young Scholar Research Project. He has been the advisor of many student awards, including the First Place of 2015 Macronix Golden Silicon Award and the Thesis Awards from the Institute of Chinese Electrical Engineering, CTCI Foundation and Metamorphose Network of Excellence. Dr. Mao is IEEE senior member since 2006.

     

     

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Journal articles & book chapters

1. T.-Y. Lo, J.-Y. Chang, Tan Z. W., P.-Y. Chen, S.-P. Huang, W.-T.Tsai, C.-Y. Liou, S.-G,. Mao, “GPS-Free Wireless Precise Positioning System for Automatic Flying and Landing Application of Shipborne Unmanned Aerial Vehicle” , Sensors , 2024

2. T.-Y. Lo, J.-Y. Chang, Tan Z. W., P.-Y. Chen, S.-P. Huang, W.-T.Tsai, C.-Y. Liou, S.-G,. Mao, “GPS-Free Wireless Precise Positioning System for Automatic Flying and Landing Application of Shipborne Unmanned Aerial Vehicle” , Sensors , 2024

3. J.-Y. Chang, T.-Y. Lo, P.-Y. Chen, Tan Z. W., S.-P. Huang, W.-T.Tsai, C.-Y. Liou, S.-G,. Mao, “Ka-Band Miniaturized 90 nm CMOS Wideband Rat-Race Coupler Using Left-Handed and Right-Handed Transmission Lines” , Electronics , 2024

4. Z.-A. Peng, C.-B. Chen, T.-Y. Lo, J.-Y. Chang, W.-T. Tsai, C.-Y. Liou, and S.-G. Mao, “Bandwidth and Stability Improvements of Wideband Receiver Front End Using Inductorless Low Noise Amplifier” , IEEE Transactions on Circuits and Systems II: Express Briefs , Mar. 2023

5. S.-P. Huang, C.- Chen, Tan Z. W., W.-T. Tsai, C.-Y. Liou, Y.-M. Mao, W.-H. Sheng, S.-G. Mao, “Range-Extension Algorithms and Strategies for TDOA Ultra-Wideband Positioning System” , Sensors , 2023

6. C.-B Chen., T.-Y. Lo, J.-Y. Chang, S.-P. Huang, W.-T. Tsai, C.-Y. Liou, S.-G. Mao, “Precision Enhancement of Wireless Localization System Using Passive DOA Multiple Sensor Network for Moving Target” , Sensors , 2022

7. Z.-A. Peng; Y.-Y. Chen, C.-B. Chen, S.-P. Huang, W.-T. Tsai, C.-Y. Liou and S.-G. Mao, “Ferrite-Less Frequency-Tuned Printed-coil Resonator with Rear Metallic Plate for RFID Applications” , IEEE Journal of Radio Frequency Identification , Mar. 2021

8. S.-P. Huang, J.-F. Neo, Y.-Y. Chen, C.-B. Chen, T.-Y. Wu, Z.-A. Peng, W.-T. Tsai, C.-Y. Liou, W.-H. Sheng, S.-G. Mao, “Ultra-Wideband Positioning Sensor with Application to an Autonomous Ultraviolet-C Disinfection Vehicle” , Sensors , 2021

9. Y. -Y. Chen, S. -P. Huang, T. -W. Wu, W. -T. Tsai, C. -Y. Liou and S. -G. Mao, “UWB System for Indoor Positioning and Tracking With Arbitrary Target Orientation, Optimal Anchor Location, and Adaptive NLOS Mitigation” , IEEE Transactions on Vehicular Technology , Sep. 2020

10. W.-T. Tsai, C.-Y. Liou, Z.-A. Peng and S.-G. Mao, “Wide-Bandwidth and High-Linearity Envelope- Tracking Front-End Module for LTE-A Carrier Aggregation Applications” , IEEE Trans. on Microwave Theory Tech. , Vol. vol. 65, no. 11 , 4657-4668, Nov. 2017

11. Chong-Yi Liou, Chi-Jung Kuo, and Shau-Gang Mao, “Wireless Power Transfer System Using Near-Field Capacitively Coupled Resonators” , IEEE Transactions on Circuits and Systems II , Jan. 2016

12. M.-L. Lee, C.-Y. Liou, W.-T. Tsai, C.-Y. Lou, H.-L. Hsu, and S.-G. Mao, “Fully Monolithic BiCMOS Reconfigurable Power Amplifier for Multi-Mode and Multi-Band Applications” , IEEE Trans. on Microwave Theory Tech. , Vol. vol. 63, no. 2 , pp. 614 - 624-, Feb. 2015

13. C.-Y. Liou and S.-G. Mao, “Triple-Band Marchand Balun Filter Using Coupled-Line Admmittance Inverter Technique” , IEEE , Nov. 2013

14. C.-Y. Liou and S.-G. Mao, “Triple-Band Marchand Balun Filter Using Coupled-Line Admittance Inverter Technique” , IEEE Trans. on Microwave Theory Tech. , Vol. vol. 61, no. 11 , 3846-3852, Nov. 2013

15. C.-Y. Liou, M.-L. Lee, S.-S. Huang, and S.-G. Mao,, “High-Power and High-Efficiency RF Rectifiers Using Series and Parallel Power Dividing Networks and Their Applications to Wirelessly Powered Devices” , IEEE Trans. Microwave Theory Tech. , Vol. vol. 61, no. 1 , pp. 616-624-, Jan. 2013

16. W.T. Tsai, Z.-A. Peng, C.-Y. Liou and S.-G. Mao, “Linearity and Noise Improvements of Driver-Stage Envelope-Injection Power Amplifier With Amplitude and Phase Shaping Functions for 5G New Radio Application” , IEEE Access , 0000

17. Y.-C. Lai, C.-H. Yu, T.-Y. Huang, S.-P. Huang, W.-T. Tasi, Y.-W. Wu, and S.-G. Mao, “Medical PPG Sensor for Cardiovascular Disease Diagnosis Using Personalized Hemodynamics Model and Pulse Wave Analysis” , IEEE Sensors Letters , 0000

18. S.-G. Mao, J.-Y. Ke, and C. H. Chen, “Propagation characteristics of superconducting microstrip lines” , IEEE Trans. Microwave Theory Tech., vol. 44, pp. 33-44, Jan. 1996. , Jan. 0

19. S.-G. Mao, H.-K. Chiou, and C. H. Chen, “Modeling of lumped-element coplanar-stripline low-pass filter” , IEEE Microwave Guided Wave Lett., vol. 8, pp. 141-143, Mar. 1998. , Jan. 0

20. C.-T. Hwang, S.-G. Mao, R.-B. Wu, and C. H. Chen, “Partially prism-gridded FDTD analysis for layered structures of transversely curved boundary” , IEEE Trans. Microwave Theory Tech., vol. 48, pp. 339-346, March 2000. , Jan. 0

21. S.-G. Mao, C.-T. Hwang, R.-B. Wu, and C. H. Chen, “Analysis of coplanar waveguide-to-coplanar stripline transitions” , IEEE Trans. Microwave Theory Tech., vol. 48, pp. 23-29, Jan. 2000. , Jan. 0

22. S.-G. Mao, H.- K. Chiou, and C. H. Chen, “Design and modeling of uniplanar double balanced mixer” , IEEE Microwave Guided Wave Lett., vol. 8, pp. 354-356, Oct. 1998. , Jan. 0

23. S.-G. Mao and Y.-Z. Chueh, “Coplanar waveguide bandpass filters with compact size and wide spurious-free stopband using electromagnetic bandgap resonators” , IEEE Microw. Wireless Comp. Lett., vol. 17, pp 181-183, Mar. 2007. , Jan. 0

24. S.-G. Mao and S.-L. Chen, “ime-domain characteristics of ultra-wideband tapered loop antennas” , Electron. Lett., vol. 42, pp 1262-1263, Oct. 2006. , Jan. 0

25. S.-G. Mao, M.-S. Wu, and Y.-Z. Chueh, “Design of composite right/left-handed coplanar waveguide bandpass and dual-passband filters” , IEEE Trans. Microwave Theory Tech., vol. 54, pp 3543-3549, Sept. 2006. , Jan. 0

26. S.-G. Mao and S.-L. Chen, “Characterization and modeling of left-handed microstrip lines with application to loop antennas” , IEEE Trans. Antennas and Propag., vol. 54, pp. 1084-1091, Apr. 2006. , Jan. 0

27. S.-G. Mao and Y.-Z. Chueh, “Broadband composite right /left-handed coplanar waveguide power splitters with arbitrary phase responses and balun and antenna applications” , IEEE Trans. Antennas and Propag., vol. 54, pp. 243-250, Jan. 2006. , Jan. 0

28. S.-G. Mao, M.-S. Wu, Y.-Z. Chueh, and C. H. Chen, “Modeling of symmetric composite right/left-handed coplanar waveguides with applications to compact bandpass filters” , IEEE Trans. Microwave Theory Tech., vol. 53, pp 3460-3466, Nov. 2005. , Jan. 0

29. S.-G. Mao, S.-L. Chen, and C.-W. Huang, “Effective electromagnetic parameters of novel distributed left-handed microstrip lines” , IEEE Trans. Microwave Theory and Tech., vol. 53, pp. 1515-1521, Apr. 2005. , Jan. 0

30. S.-G. Mao, C.-M. Chen, and D.-C. Chang, “Modeling of slow-wave EBG structure for printed-bowtie antenna array” , IEEE Antennas and Wireless Propagation Lett., vol. 1, no. 6, pp. 124-127, 2002. , Jan. 0

31. S.-G. Mao and M.-Y. Chen,, “Propagation characteristics of finite-width conductor-backed coplanar waveguides with periodic electromagnetic bandgap cells” , IEEE Trans. Microwave Theory Tech., vol. 50, pp. 2624-2628, Nov. 2002. , Jan. 0

32. S.-G. Mao and M.-Y. Chen, “A novel periodic electromagnetic bandgap structure for finite-width conductor-backed coplanar waveguides” , IEEE Microwave Wireless Components Lett., vol. 11, pp. 261-263, June 2001. , Jan. 0

33. C.-Y. Liou, C.-J. Kuo, M.-L. Lee and S.-G. Mao, “Coupling Enhancement Between Monopole-Type Resonators Using Metamaterial Cavity” , Appl. Phys. Lett. 100, 244101 (2012); http://dx.doi.org/10.1063/1.4728989 , Jan. 0

34. C.-Y. Liou, M.-S. Wu, J.-C. Yeh, Y.-Z. Chueh, and S.-G. Mao, “A novel triple-band microstrip branch-line coupler with arbitrary operating frequencies” , IEEE Microw. Wireless Comp. Lett., vol. 19, pp 683-685, Nov. 2009. , Jan. 0

35. S.-G. Mao, J.-C. Yeh, and S.-L. Chen, “Ultrawideband circularly polarized spiral antenna using integrated balun with application to time-domain target detection” , IEEE Trans. Antennas and Propag., vol. 57, pp. 1914 - 1920, Jul. 2009. , Jan. 0

36. S.-G. Mao, Y.-Z. Chueh, C.-H. Chen, and M.-C. Hsieh, “Compact ultra-wideband conductor-backed coplanar waveguide bandpass filter with a dual band-notched response” , IEEE Microw. Wireless Comp. Lett., vol. 19, pp 149-121, Mar. 2009. , Jan. 0

37. S.-G. Mao and M.-S. Wu, “Design of artificial lumped-element coplanar waveguide filters with controllable dual-passband responses” , IEEE Trans. Microwave Theory Tech., vol. 57, pp 1684-1692, Jul. 2008. , Jan. 0

38. S.-G. Mao and S.-L. Chen, “Frequency- and time-domain characterizations of ultrawideband tapered loop antennas” , IEEE Trans. Antennas and Propag., vol. 55, pp. 3698 – 3701, Dec. 2007. , Jan. 0

39. S.-G. Mao and Y.-Z. Chueh, “Compact dual-passband filter using lumped-element coplanar waveguide resonators” , Electron. Lett., vol. 43, pp 873-875, Aug. 2007. , Jan. 0

40. S.-G. Mao, Y.-Z. Chueh, and M.-S. Wu, “Asymmetric dual-passband coplanar waveguide filters using periodic composite right/left-handed and quarter-wavelength stubs” , IEEE Microw. Wireless Comp. Lett., vol. 17, pp 418-420, Jun. 2007. , Jan. 0

41. S.-G. Mao and M.-S. Wu, “A novel 3-dB directional coupler with broad bandwidth and compact size using composite right/left-handed coplanar waveguides” , IEEE Microw. Wireless Comp. Lett., vol. 17, pp 331-333, May 2007. , Jan. 0

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