Short Bio.

In 2000, he won an award in the National URSI Student Paper competition at the 2000 National Radio Science Meeting in Boulder, Colorado. During 2004 to 2009, he invented generalized Smith charts, called Meta-Smith charts (visit http://www.meta-smithcharts.org/), for solving problems associated with conjugately characteristic-impedance transmission lines (CCITLs) and bi-characteristic-impedance transmission lines (BCITLs). His research interests are in the areas of fast computational electromagnetics, rough surface scattering, propagation modeling, electromagnetic wave theory, microwave theory and techniques, antennas and sensors. He is currently a senior member of the IEEE and a member of the Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Association of Thailand (ECTI).

Education

• Ph.D. (Electrical Engineering), The Ohio State University, USA
• M.S. (Electrical Engineering), The Ohio State University, USA
• B.Eng. (Electrical Engineering) with 2nd class honour, Chulalongkorn University, Thailand

Research Areas

• Fast computational electromagnetics
• Rough surface scattering
• Propagation modeling
• Electromagnetic wave theory
• Microwave theory and techniques
• Antennas
• Electromagnetic sensors

Research Grants

• Won a research grant of 1,489,390 baht for a research project under Contract Number 02/2549 from the National Electronics and Computer Technology Center (NECTEC), Thailand.
• Won a research grant of 1,362,112 baht for a research project under Contract Number 09/2551 from the National Electronics and Computer Technology Center (NECTEC), Thailand.
• Won a research grant of 50,000 baht for a research project under Contract Number DIG54D0002 from the Thailand Research Fund (TRF) in 2010.
• Participated in the “Antenna Technology” project as a group member, where this project is supported by the Thailand Research Fund (TRF) under the grant number RTA 4880002.
• Participated in the “Electromagnetic Wave Technology for Sustainable Agriculture” project as a group member, where this project is supported by the Thailand Research Fund (TRF) under the grant number RTA 5180002.

Industrial Experiences

• Worked as an engineer at Loxley Public Company Limited, Bangkok, Thailand in 1993.
• Worked as a senior engineer at Tech-Knowledge Advancement, Inc., Camarillo, CA, USA in 2001.
• Have collaborated with industrial people from both national and international companies for electromagnetic projects.

Academic and Research Experiences

• Have been employed at Asian University, Chon Buri, Thailand since 2002, where the current positions are the director of graduate programs and the head of the electrical and electronic
  engineering (EE) department.
• Had worked as a graduate research associate (GRA) at ElectroScience Laboratory, The Ohio State University, Columbus, Ohio, USA during 1995-2000.

Honours and Awards

• Won an award of National URSI Student Paper competition at the 2000 National Radio Science Meeting in Boulder, Colorado.
• Won an excellent paper award in the area of communications of the 26th Electrical Engineering Conference (EECON-26), Petchaburi, Thailand.
• Have become a senior member of the IEEE (since February 2006).
• Won the best paper award in the area of communication systems of the 2008 ECTI International Conference, Krabi, Thailand.
• Received Asian University research achievement award in the 2007-2008 academic year.
• Received an ICT Award 2010 for research on hardware for the research project entitled “Design and Development of Radio Frequency Identification (RFID) Antennas for Animal Identification”.
• Received Asian University outstanding-researcher award in the 2011-2012 academic year.

Publications

• [J32] C. Pakasiri and D. Torrungrueng, “Forward-backward Method with a
  Spectral Acceleration Algorithm for Capacitance Extraction of Planar
  Structures on a Single-Layered Medium,” Microwave and Optical
  Technology Letters, vol. 56, no. 3, pp. 694-700, March 2014.
• [J31] S. Eardprab, C. Phongcharoenpanich and D. Torrungrueng,
  “ Improvement of a Circular Microstrip Antenna Excited by Four Feeds
  and Suspended with Artificial Magnetic Conductors,” International
  Journal of Antennas and Propagation, vol. 2013, pp. 1-10, 2013
  (http://dx.doi.org/10.1155/2013/310686).
• [J30] D. Torrungrueng and V. Sanphuang, “ Effective Analysis of Terminated
  Lossless Planar Multilayer Periodic EBG Structures Using an Equivalent
  Transmission-Line Model with Meta-Smith Charts,” Microwave and
  Optical Technology Letters, vol. 55, no. 9, pp. 2222-2228, September
  2013.
• [J29] R. Suwalak, C. Phongcharoenpanich, D. Torrungrueng and
  M. Krairiksh, “ Determination of Dielectric Property of Construction
  Material Products Using a Novel RFID Sensor,” PIER, vol. 130,
  pp. 601-617, 2012.
• [J28] S. Lamultree and D. Torrungrueng, “ Physical Interpretation of
  Negative Characteristic Resistances Associated with Lossless Periodic
  Transmission Line Structures,” Microwave and Optical Technology
  Letters, vol. 54, no. 5, pp. 1180-1183, May 2012.
• [J27] R. Silapunt and D. Torrungrueng, “ Theoretical Study of Microwave
  Transistor Amplifier Design in the Conjugately Characteristic-Impedance
  Transmission Line (CCITL) System Using a Bilinear Transformation
  Approach,” PIER, vol. 120, pp. 309-326, 2011.
• [J26] S. Kawdungta, C. Phongcharoenpanich and D. Torrungrueng, “A Novel
  Analysis of Planar Dipole Antenna Arrays in Free Space with the
  Multiple-Sweep Method of Moments,” Electromagnetics, vol. 31,
  pp. 258-272, 2011.
• [J25] S. Kawdungta, C. Phongcharoenpanich and D. Torrungrueng, “An
  Analysis of Electrically Large Planar Dipole Antenna Arrays with an
  Efficient Hybrid MSMM/CG Method,” J. of Electromagn. Waves and
  Appl., vol. 25, pp. 189-202, 2011.
• [J24] J. Mearnchu, T. Limpiti, D. Torrungrueng, P. Akkaraekthalin and
  M. Krairiksh, “A Handheld Moisture Content Sensor Using Coupled-
  Dipole Antennas,” Latin American Applied Research, vol. 40, pp. 199-
  206, 2010.
• [J23] S. Kawdungta, C. Phongcharoenpanich and D. Torrungrueng, “ Design
  of a Novel Dual-Loop Gate Antenna for Radio Frequency Identification
  (RFID) Systems at Low Frequency Band,” Progress In Electromagnetics
  Research C, vol. 12, pp. 1-14, 2010.
• [J22] C. Lertsirimit and D. Torrungrueng, “Fast Capacitance Extraction for
  Finite Planar Periodic Structures Using the Generalized Forward-
  Backward and Novel Spectral Acceleration Method,” PIER, vol. 96,
  pp. 251-266, 2009.
• [J21] K. Vudhivorn, D. Torrungrueng, and C. Thimaporn, “Non-Uniqueness
  of T-Charts for Solving CCITL Problems with Passive Characteristic
  Impedances,” Progress In Electromagnetics Research M, vol. 7,
  pp. 193-205, 2009.
• [J20] D. Torrungrueng, S. Lamultree, C. Phongcharoenpanich and
  M. Krairiksh, “In-Depth Analysis of Reciprocal Periodic Structures of
  Transmission Lines,” IET Microwaves, Antennas & Propagation, vol. 3,
  pp. 591-600, June 2009.
• [J19] D. Torrungrueng and S.Lamultree, “ Equivalent Graphical Solutions of
  Terminated Conjugately Characteristic-Impedance Transmission Lines
  with Non-Negative and Corresponding Negative Characteristic
  Resistances,” PIER, vol. 92, pp. 137-151, 2009.
• [J18] K. Vudhivorn and D. Torrungrueng, “ A Modified Extended ZY
  T-Chart for Conjugately Characteristic-Impedance Transmission Lines
  with Active Characteristic Impedances,” Microwave and Optical
  Technology Letters, vol. 51, no. 3, pp. 621-625, March 2009.
• [J17] D. Torrungrueng and S.Lamultree, “ Analysis of Planar Multilayer
  Structures at Oblique Incidence Using an Equivalent BCITL Model,”
  Progress In Electromagnetics Research C, vol. 4, pp. 13-24, 2008.
• [J16] D. Torrungrueng, C. Thimaporn, S.Lamultree, and M. Krairiksh,
  “ Theory of Small Reflections for Conjugately Characteristic-Impedance
  Transmission Lines,” IEEE Microwave and Wireless Components Letters,
  vol. 18, no. 10, pp. 659-661, October 2008.
• [J15] D. Torrungrueng, P.Y. Chou, and M. Krairiksh, “ A Graphical Tool for
  Analysis and Design of Bi-Characteristic-Impedance Transmission
  Lines,” Microwave and Optical Technology Letters, vol. 49, no. 10, pp.
  2368-2372, October 2007.
• [J14] D. Torrungrueng, P.Y. Chou, and M. Krairiksh, “ An Extended ZY T-
  Chart for Conjugately Characteristic-Impedance Transmission Lines with
  Active Characteristic Impedances,” Microwave and Optical Technology
  Letters, vol. 49, no. 8, pp. 1961-1964, August 2007.
• [J13] D. Torrungrueng, A. Wongwattanarat, and M. Krairiksh, “ Magnitude
  of the Voltage Reflection Coefficient of Terminated Reciprocal Uniform
  Lossy Transmission Lines,” Microwave and Optical Technology Letters,
  vol. 49, no. 7, pp. 1516-1519, July 2007.
• [J12] D. Torrungrueng, P.Y. Chou, and M. Krairiksh, “A Study of
  Terminated Hermite Lossless Nonuniform Transmission Lines Using
  Mathematica,” Microwave and Optical Technology Letters, vol. 48, no. 5,
  pp. 888-892, May 2006.
• [J11] D. Torrungrueng, C. Thimaporn, and N. Chamnandechakun, “ An
  Application of the T-Chart for Solving Problems Associated with
  Terminated Finite Lossless Periodic Structures,” Microwave and Optical
  Technology Letters, vol. 47, no. 6, pp. 594-597, December 20, 2005.
• [J10] D. Torrungrueng and C. Thimaporn, “ Application of the T-chart for
  Solving Exponentially Tapered Lossless Nonuniform Transmission-Line
  Problems,” Microwave and Optical Technology Letters, vol. 45, no. 5, pp.
  402-406, June 5, 2005.
• [J9] D. Torrungrueng and C. Thimaporn, “Applications of the ZY T-Chart
  for Nonreciprocal Stub Tuners,” Microwave and Optical Technology
  Letters, vol. 45, no. 3, pp. 259-262, May 5, 2005.
• [J8] D. Torrungrueng, B. Ungan, and J. T. Johnson, “The Optical Theorem
  for Electromagnetic Scattering by a Three-Dimensional Scatterer in
  the Presence of a Lossless Halfspace,” IEEE Geosc. Rem. Sens.
  Letters, vol. 1, no. 2, pp. 131-135, April 2004.
• [J7] D. Torrungrueng and C. Thimaporn, “A Generalized ZY Smith Chart
  for Solving Nonreciprocal Uniform Transmission-Line Problems”,
  Microwave and Optical Technology Letters, vol. 40, no. 1, pp. 57-61,
  January 5, 2004.
• [J6] D. Torrungrueng, Joel T. Johnson, and H. -T. Chou, “Some Issues
  Related to the Novel Spectral Acceleration (NSA) Method for the Fast
  Computation of Radiation/Scattering from One-Dimensional Extremely
  Large-Scale Quasi-Planar Structures”, Radio Science, Mar-Apr 2002.
• [J5] D. Torrungrueng and Joel T. Johnson, “An Improved FB/NSA
  Algorithm for the Computation of Scattering from Two-Dimensional
  Large-Scale Rough Surfaces”, J. Electromag. Wave Applic., vol. 15, pp.
  1337-1362, 2001.
• [J4] D. Torrungrueng and Joel T. Johnson, “Numerical Studies of
  Backscattering Enhancement of Electromagnetic Waves from Two-
  Dimensional Random Rough Surfaces Using the Forward-
  Backward/Novel Spectral Acceleration Method”, J. Opt. Soc. Am. A, vol.
  18, pp. 2518-2526, October 2001.
• [J3] D. Torrungrueng and Joel T. Johnson, “The Forward-Backward Method
  with a Novel Acceleration Algorithm (FB/NSA) for the Computation of
  Scattering from Two-Dimensional Large-Scale Impedance Random
  Rough Surfaces”, Microwave and Optical Technology Letters, vol. 29, pp.
  232-236, May 2001.
• [J2] D. Torrungrueng, H. -T. Chou, and J. T. Johnson, “A Novel
  Acceleration Algorithm for the Computation of Scattering from
  Two-Dimensional Large-Scale Perfectly Conducting Random Rough
  Surfaces with the Forward-Backward Method”, IEEE Transactions on
  Geoscience and Remote Sensing, vol. 38, pp. 1656-1668, July 2000.
• [J1] D. Torrungrueng and E. H. Newman, “The Multiple Sweep Method of
  Moments(MSMM) Analysis of Electrically Large Bodies”, IEEE
  Transactions on Antennas and Propagation, vol. 45, pp. 1252-1258, Aug.
  1997.

Contact

• Telephone: +66-38-253-700 (Ext. 2750)
• E-mail: danait at asianust.ac.th