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Where there is light, there must be shadow, and vice versa. --- Haruki Murakami

 

maorunShau-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.

 

Publication List

  • Journal Paper
    1. 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. 65, no. 11, pp. 4657, Nov. 2017.
    2. C.-Y. Liou, C.-J. Kuo, and S.-G. Mao, “Wireless Power Transfer System Using Near-Field Capacitively Coupled Resonators,” IEEE Trans. on Circuit and Systems II, 2016.
    3. 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. 63, no. 2, pp. 614 - 624, Feb. 2015.
    4. C.-Y. Liou and S.-G. Mao, “Triple-Band Marchand Balun Filter Using Coupled-Line Admmittance Inverter Technique,” IEEE Trans. on Microwave Theory Tech., vol. 61, no.  11, pp. 3846 - 3852, Nov. 2013.
    5. 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. 61, no. 1, pp. 616-624, Jan. 2013
    6. 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
    7. 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.
    8. 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.
    9. 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.
    10. M.-S. Wu, Y.-Z. Chueh, J.-C. Yeh, and S.-G. Mao, "Synthesis of triple-band and quad-band bandpass filters using lumped-element coplanar waveguide resonators," Progress In Electromagnetics Research B, Vol. 13, 433-451, 2009.
    11. 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.
    12. M.-S. Wu, Y.-Z. Chueh, and S.-G. Mao, “Characteristics of the composite right/left-handed and electromagnetic bandgap coplanar waveguide stubs with applications to dual-passband filter,” International Journal of Electrical Engineering, 15:1 2008.
    13. S.-G. Mao, S.-L. Chen, J.-C. Yeh, and T.-M. Lin, “Series-fed circularly polarized microstrip antennas with broad bandwidth,” Radio Sci., 42, RS4016, 2007. doi:10.1029/2006RS003562 .
    14. 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.
    15. 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.
    16. 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.
    17. S.-G. Mao, S.-L. Chen, and J.C. Yeh, “Broadband series-fed printed dipole arrays with mutual coupling,” Microw. Opt. Techno. Lett., vol. 49, pp 1044-1047, May 2007.
    18. 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.
    19. 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.
    20. S.-G. Mao and S.-L. Chen, “Time-domain characteristics of ultra-wideband tapered loop antennas,” Electron. Lett., vol. 42, pp 1262-1263, Oct. 2006.
    21. 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.
    22. 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.
    23. 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.
    24. 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.
    25. 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.
    26. 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.
    27. 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.
    28. 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.
    29. 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.
    30. 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.
    31. 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.
    32. 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.
    33. 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.
  • Conference Paper
    1. W.-T. Tsai, and Y.-Y. Chen, C.-Y. Liou, K.-G. Ning, Z.-L. Tsai, and S.-G. Mao “Fully-automatic Object Detection Vehicle with Object Following Characteristic Based on Multi-antenna Bluetooth Low Energy Telematics System,” Progress in Electromagnetics Research Symposium (PIERS), Nov. 2017.
    2. Z.-M. Tsai, R.-B. Wu, T.-L. Wu, S.-Y. Chen, S.-G. Mao, and T.-G. 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), pp. 86-88, 2017.
    3. C.-Y. Liou, and S.-G. Mao “Robust optimization of printed spiral coil resonators for wireless powering system with proximal metal plates,” 2017 IEEE Wireless Power Transfer Conference (WPTC), pp. 1-3, 2017.
    4. C.-Y. Liou, and S.-G. Mao “Miniaturized shark-fin rooftop antenna with integrated DSRC communication module for connected vehicles,” 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), pp. 1-4, 2017.
    5. C.-Y. Liou, and S.-G. Mao “Printed spiral metamaterial resonators for ferrite-less wireless powering system with proximal metal plates,” 2016 IEEE Wireless Power Transfer Conference (WPTC), pp. 1-4, 2016.
    6. C.-Y. Liou and S.-G. Mao, “Triple-Band Microstrip Wilkinson Power Dividers with Controllable Frequency Responses,” IEEE MTT-S Int. Microwave Symp,. June, 2014.
    7. C.-Y. Liou, X.-S. Lin, C.-H. Tai, and S.-G. Mao, “Microwave near-field capacitive coupling system for wireless powering applications,” 2014 IEEE Wireless Power Transfer Conference (WPTC), Page 56-59, 2014.
    8. C.-Y. Liou, C.-J. Kuo, M.-L. Lee, and S.-G. Mao, “Wireless Charging System of Mobile Handset Using Metamaterial-Based Cavity Resonator,” IEEE MTT-S Int. Microwave Symp,. June 2012.
    9. C.-Y. Liou, C.-J. Kuo, J.-C. Yeh, Y.-Z. Chueh, and S.-G. Mao, “Broadband and strong coupling metamaterial-based cavity resonator using artificial magnetic surfaces,” in Proc. 2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications (IMWS), pp.119-121, May 2011.
    10. J.-C. Yeh, C.-Y. Liou, Y.-Z. Chueh, M.-S. Wu, and S.-G. Mao, “Novel compact metamaterial-based cavity resonator with broad bandwidth,” in Proc. IEEE AP-S. Int. Symp., Jul. 2010 [CD ROM].
    11. M.-S. Wu and S.-G. Mao, “Design method for artificial lumped-element dual-passband filter by using compensation technology,” in Second International Congress on Advanced Electromagnetic Materials in Microwaves and Optics in Spain, Sept. 21-26, 2008.
    12. M.-S. Wu and S.-G. Mao, “Modeling of composite right/left-handed and electromagnetic bandgap coplanar waveguide stubs with compact size,” 2007 National Symposium on Telecommunications in Taiwan, R.O.C., Nov. 23-24, 2007.
    13. M.-S. Wu and S.-G. Mao, “Dispersion characteristics of compact composite right/left-handed and electromagnetic bandgap coplanar waveguide stubs,” in First International Congress on Advanced Electromagnetic Materials in Microwaves and Optics in Rome, Oct. 22-26, 2007.
    14. M.-S. Wu and S.-G. Mao, “Characteristics of the composite right/left-handed and electromagnetic bandgap coplanar waveguide stubs,” 2007 URSI National Radio Science Conference in Taiwan, R.O.C, Mar. 8-9, 2007.
    15. S.-L. Chen and S.-G. Mao, “Frequency- and time-domain modeling of tapered loop antenna in ultra-wideband radio systems,” in IEEE APS/URSI Int. Symp. Dig., Albuquerque New Mexico, U.S.A., Jul. 8-14, 2006. [CD ROM]
    16. S.-G. Mao and M.-S. Wu, “Composite right/left-handed coplanar waveguide filters with arbitrary passband and stopband responses,” in IEEE MTT-S Int. Microwave Symp. Dig., CD ROM, Jun. 2006.
    17. S.-G. Mao and S.-L. Chen, “Broadband series-fed printed dipole array and its impulse response characterization,” Asia-Pactific Symposium on EMC, Taipei, Taiwan, Dec. 6-9, 2005. [CD ROM].
    18. S.-G. Mao and S.-L. Chen, “Broadband series-fed printes dipole arrays with conductor-backed coplanar waveguide-to-coplanar stripline transitions,” in IEEE APS/URSI Int. Symp. Dig., Washington, D.C., U.S.A., Jul. 3-8, 2005. [CD ROM].
    19. S.-L. Chen and S.-G. Mao, “Broadband conductor-backed coplanar waveguide-to-coplanar stripline transitions,” 2004 Cross Strait Tri-regional Radio Science and Wireless, Hsin Chu, Taiwan, Sept. 19-25, 2004. [CD ROM]
    20. S.-G. Mao and S.-L. Chen, “Broadband series-fed printed dipole arrays in uniplanar configuration,” 2004 URSI International Symposium on Electromagnetic Theory Dig., Pisa, Italy, May 23-27, 2004. [CD ROM] (Young Scientist Award)
    21. S.-G. Mao, “Advanced studies in planar microwave circuits,” 2002 Taiwan-Japan symposium on SQUID & Communication Electronics Dig., Changhua, Taiwan [CD ROM]. (Invited)
    22. S.-G. Mao, C.-M. Chen, and D.-C. Chang, “Slow-wave characteristics of EBG structures and their phase shifter applications,'' 2002 International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM 2002) Dig., pp. 105--108, Canadian Space Agency Saint-Hubert, QC, Canada, 2002. (Invited)
    23. S.-G. Mao and M.-Y. Chen, “Guiding characteristics of 1-D periodically loaded finite-width conductor-backed coplanar waveguide,” Taiwan EMC Conference 2001 ( EMC 2001) Dig. , pp. 163--166, Taipei, Taiwan, R.O.C.
    24. S.-G. Mao and M.-Y. Chen, “Slow-wave characteristic of 1-D electromagnetic bandgap structure for finite-width conductor-backed coplanar waveguide,” International Symposium on Communications 2001 (ISCOM 2001) Dig., Tainan, Taiwan, R.O.C [CD ROM].
    25. S.-G. Mao, C.-H. Chan, C.-I. G. Hsu, and D.-C. Chang, “A series-fed printed-strip dipole antenna with broad-band characteristics and end-fire radiation,” Asia-Pacific Microwave Conference 2001 (APMC 2001) Dig., pp. 926--929, Taipei, Taiwan, R. O. C. (Best Paper Award)
    26. S.-G. Mao and M.-I. Chen, “Modeling of coplanar line tapered structures,” Progress in Electromagnetics Research Symposium 2001 (PIERS 2001) Dig., pp. 367, Osaka, Japan.
    27. S.-G. Mao, C.-W. Chiu, R.-B. Wu, and C. H. Chen, “Equivalent inductances of coplanar-stripline step discontinuities,” 1997 Asia-Pacific Microwave Conference, vol. 2, pp. 613--616.
    28. S.-G. Mao, J.-Y. Ke, and C. H. Chen, “Modified spectral-domain analysis of superconducting coplanar waveguides,” 1995 International Symposium on Communications (ISCOM), Taipei, Taiwan, vol. 2, pp. 1113--1117, Dec. 1995.
  • Book Chapter
    S.-G. Mao and S.-L. Chen, “Planar Tapered Loop Antennas for Ultra-Wideband Radio Systems,” in Ultra Wideband, Short Pulse Electromagnetics 8, KLUWER ACADEMIC/PLENUM PUBLISHERS, 2007.
     
  • Patent
    1. Shau-Gang Mao, “Transmission interface device and system thereof”, US Patent, No. US 9831919.
    2. Shau-Gang Mao, “Rectifying module, electrical apparatus thereof, and rectifying method thereof”, US Patent, No. US 9473039.
    3. Shau-Gang Mao et. al., “Micro-Strip Antenna With L-Shaped Band-Stop Filter”, US Patent, No. US 7889136.
    4. Shau-Gang Mao et. al., “Multi-Band Microstrip Meander-Line Antenna”, US Patent, No. US 2011/0025576 A1.
    5. Shau-Gang Mao et. al., “Antenna Array Method for Enhancing Signal Transmission,” US Patent, No.US 2011/0095958 A1.
    6. Shau-Gang Mao et. al., “Dual-band Planar Micro-Strip Antenna,” US Patent, No. US 2010/0238084 A1.
    7. Shau-Gang Mao, “Wireless Power Transmitting Apparatus,” US Patent, No. US 8184454B2.
    8. Shau-Gang Mao et. al.,“Multi-Band Microstrip Meander-Line Antenna,” US Patent, No. US 2011/0025576 A1
    9. Shau-Gang Mao et. al.,“Antenna Array Method for Enhancing Signal Transmission,” US Patent, No. US 2011/0095958 Al.
    10. Shau-Gang Mao et. al.,“Bulk Acoustic Wave Resonator and Bulk Acoustic Wave Filter and Method of Fabricating Bulk Acoustic Wave Resonator,” US Patent, No. US 2012/0086522 A1.

 

　

Contact information
Dr. Shau-Gang Mao
Professor
Department of Electrical Engineering
National Taiwan University
Taipei 106, Taiwan
Office: EE2-315
Phone: +886-2-33661576
Email: sgmao@ntu.edu.tw