Admissions
ProfDU

Disala Uduwawala

Senior Professor
Room: WS 06
☎: +94 239 3422
✉: disala AT ee.pdn.ac.lk
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Biography

Prof. D. N. Uduwawala received his B.Sc.Eng. degree with first class honours from the University of Peradeniya, Sri Lanka in 1999. He received his Technical Licentiate and Ph.D. degrees in electromagnetic theory from the Royal Institute of Technology (KTH), Sweden in 2004 and 2006 respectively. At present he is a Senior Professor attached to the Dept. of Electrical and Electronic Engineering, University of Peradeniya. Prof. Uduwawala is a corporate member of the Institution of Engineers, Sri Lanka (IESL) and a senior member of the Institute of Electrical and Electronics Engineers (IEEE), USA. He has served the IEEE Microwave Theory and Techniques Society (MTT-s), Sri Lanka Chapter and IEEE Sri Lanka Central Region Subsection in various capacities and chaired MTT-s, Sri Lanka Chapter in 2014. He was the coordinator of the postgraduate program in Electrical and Electronic Engineering at the University of Peradeniya during 2007-2013. He served as the Director of Electrical and Electronics workshop, University of Peradeniya during 2013-2016 and the Director of Centre for Engineering Research and Postgraduate Studies (CERPS) during 2017-2020. Prof. Uduwawala’s research areas include antennas and computational electrodynamics. He has been the co-author of numerous peer reviewed international journal and conference papers. He was a recipient of the Presidential awards for scientific research publications in 2010. He is an editorial board member of the International Journal of Practical Electronics (IJPE) and the Journal of High-Frequency Communication Technologies. Further he is a reviewer of several international journals and conferences including IEEE Transactions on Geoscience and Remote Sensing, Journal of Electromagnetic Waves and Applications (JEMWA) and Progress in Electromagnetic Research (PIER).

 
 

 

⮚  Microstrip Antennas

⮚  Use of optimizing techniques to improve performance of antennas

⮚   Design of broadband and high directivity antennas

⮚   Design of antennas for radars

⮚   Inteligent reflecting surfaces

⮚   Complex impedance transformers

 

⮚  Ph.D., Royal Institute of Technology, Sweden, 2006.

⮚  Technical Licentiate, Royal Institute of Technology, Sweden, 2004.

⮚  B.Sc.Eng. in Electrical and Electronic Engineering, University of Peradeniya, 1999.

⮚  Senior Member IEEE (SMIEEE)

⮚  Member Institute of Engineers, Sri Lanka (IESL)

⮚ Charter, IESL (C.Eng.)

   

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PUBLICATIONS

 

  1. Disala Uduwawala, Martin Norgren, Peter Fuks, and Aruna W. Gunawardena, “A   Deep Parametric Study of Resistor-Loaded Bow-Tie Antennas for Ground Penetrating Radar Applications using FDTD,” IEEE Trans. Geosci. Remote Sensing, Vol. 42, No. 4, pp 732-742, April 2004.
  2.  
  3. D. Uduwawala, M. Norgren, P. Fuks, and A. Gunawardena, “A Complete FDTD Simulation of a Real GPR Antenna System Operating above Lossy and Dispersive Grounds,” Progress in Electromagnetic Research, PIER 50, pp 209-229, 2005.
  4.  
  5. D. Uduwawala, “Modeling and Investigation of Planar Parabolic Dipoles for GPR Applications: A Comparison with Bow-Tie using FDTD,” Journal of Electromagnetic Waves and Applications, JEMWA, Vol. 20, No 2, pp 227-236, 2006.
  6.  
  7. D. Uduwawala and M. Norgren, "An Investigation of Some Geometrical Shapes and Selection of Shielding and Lumped Resistors of Planar Dipole Antennas for GPR Applications Using FDTD," IEEE Trans. Geosci. Remote Sensing, Vol. 44, No. 12, pp 3555-3562, Dec. 2006.
  8.  
  9. J. M. J. W. Jayasinghe, D. N. Uduwawala, and J. Anguera, “Design of Dual Band Patch Antennas for Cellular Communications by Genetic Algorithm Optimization,” International Journal of Engineering and Technology, 1(1) (2012), pp 26-43, 2012.
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  11. J. M. J. W. Jayasingh and D. N. Uduwawala, “Novel Quad-Band Patch Antenna Design for Wireless Communications in 2.4, 5.2, 5.6 and 5.8 GHz Bands using Genetic Algorithm Optimization,”  International Journal of Engineering and Technology, 1(4) (2012), pp 466-471, 2012.
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  13. J. W. Jayasinghe, J. Anguera, and  Disala N. Uduwawala, “A Simple Design Of Multi Band Microstrip Patch Antennas Robust to Fabrication Tolerances for GSM, UMTS, LTE, and Bluetooth Applications by using Genetic Algorithm Optimization,” Progress in Electromagnetic Research M, PIER M, Vol. 27, pp 255-269, 2012.
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  15. Jeevani W. Jayasinghe, Jaume Anguera, and Disala N. Uduwawala “A High-Directivity Microstrip Patch Antenna Design by using Genetic Algorithm Optimization,” Progress in Electromagnetic Research C, PIER C, Vol. 37, pp 131-144, 2013.
  16.  
  17. J. M. J. W. Jayasinghe and D. N. Uduwawala, "Optimization of the Performance of Patch Antennas using Genetic Algorithms", J.Natn.Sci. Foundation Sri Lanka 2013 41(2):115-122.
  18.  
  19. Jeevani Jayasinghe, Jaume Anguera, and Disala Uduwawala, “Genetic Algorithm Optimization of a High-Directivity Microstrip Patch Antenna having a Rectangular Profile,” Radioengineering, Vol. 22, No. 3, pp 700-707, Sept. 2013.
  20.  
  21. Jeevani Jayasinghe, Disala Uduwawala, and Jaume Anguera, “Design of a Genetic Microstrip Patch Antenna with Broadside Radiation for GSM Applications,” International journal of Scientific world, Vol. 2, No. 2, pp 84-87, 2014.
  22.  
  23. J. W. Jayasinghe, D. N. Uduwawala, and J. Anguera, “A High-directivity Microstrip Patch Array Designed by using Genetic Algorithm Optimization,” Accepted for publication, J.Natn.Sci. Foundation Sri Lanka, 2014.
  24.  
  25. J. M. Jeevani W. Jayasinghe, Jaume Anguera, Disala N. Uduwawala, and Aurora Andújar, “Nonuniform Overlapping Method in Designing Microstrip Patch Antennas Using Genetic Algorithm Optimization,” International Journal of Antennas and Propagation, Volume 2015, Article ID 805820, 8 pages.
  26.  
  27. Jeevani Jayasinghe, Jaume Anguera, and Disala Uduwawala, “On the Behavior of Several Fitness Functions for Genetically Optimized Microstrip Antennas,” International Journal of Scientific World, Vol. 3, No. 1, pp 53-58, 2015.
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  29. J. W. Jayasinghe, D. N. Uduwawala, and J. Anguera, “Increasing the directivity of a microstrip patch array by genetic optimization,” J.Natn.Sci.Foundation Sri Lanka 2015 43 (1):83-89.
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  31. J. M. J. W. Jayasinghe, J. Anguera, D. N. Uduwawala, and A. Andújar, “High-Directivity Genetic Microstrip Patch Antenna,” International Journal of Electronics Letters, DOI: 10.1080/21681724.2015.1034189, April 2015.
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  33. J. M. Jeevani W. Jayasinghe and Disala Uduwawala, “A Novel Multiband Miniature Planar Inverted F Antenna Design for Bluetooth and WLAN Applications,” International Journal of Antennas and Propagation, Volume 2015, Article ID 970152, 6 pages.
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  35. Jeevani W. Jayasinghe, Jaume Anguera, Disala N. Uduwawala and Aurora Andújar, “Multipurpose Genetically Engineered Microstrip Patch Antennas: Bandwidth, Gain, and Polarization,” Microwave and Optical Technology Letters, Vol. 59, No. 4, pp 941-949 April 2017. 
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  37. Devisowjanya Potti, Gulam Nabi Alsath Mohammed,  Kirubaveni Savarimuthu, Malathi Kanagasabai, Venkata Ramana Rao Yeragudipati,  Jeevani W. Jayasinghe and Disala N. Uduwawala, “An optically transparent circularly polarized ultrahigh-frequency radio frequency identification reader antenna,” International journal of RF and Microwave Computer-Aided Engineering, Vol. 32, No.8 , Aug. 2022.

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  39. Shanmathi Shanmuganathan, Malathi Kanagasabai, Gulam Nabi Alsath Mohammed,  Ramana Rao Yeragudipati, Shini Ramadoss, Jeevani W. Jayasinghe & Disala N. Uduwawala, “Miniaturized wideband 5G millimeter-wave antenna with two-port positioning analysis for vehicular communication,” Applied Physics A volume 128, Article number: 823 (2022).   
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  41.  Disala Uduwawala, Roshan Weerasekera, and Aruna Gunawardena, “Complex   Impedance Transformation Using Symmetric Coupled Microstrip Lines of   adjusted Electrical Lengths,” IEEE Transactions on Components, Packaging   and Manufacturing Technology, Vol. 14, No. 3, pp. 461-470, March 2024.
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  43. Disala Uduwawala and Roshan Weerasekera, “Incident and Load Power Relations in a Mismatched Lossless Transmission Line,” Circuits, Systems and      Signal  Processing, June, 2024.

 

 

 

 

 

 

   

  

   

 

  1. D. N. Uduwawala, Peter Fuks, and M. Norgren, and A.U.A.W. Gunawardena, “FDTD Simulation of a Resistively Loaded Bow-Tie Antenna for Detection of Buried Metal Objects,” Proceedings of the Annual Research Sessions, University of Peradeniya, pp 92, October, 2002.
  1. Disala Uduwawala, Martin Norgren, Peter Fuks, and Aruna Gunawardena, “An FDTD Simulation of a GPR Detecting Buried Pipes in Lossy and Dispersive Grounds,” Proc. 13th International Symposium on Antennas (JINA), Nice, France, pp 352-353, Nov. 2004.
  1. Disala Uduwawala, “A Study of Some Shapes of Resistor-loaded Planar Dipoles for GPR Applications using FDTD,” Proc. 11th International Conference on Ground Penetrating Radar, Columbus, Ohio, USA, Jun. 2006.
  1. Disala Uduwawala, “Gaussian Vs Differentiated Gaussian as the Input Pulse for Ground Penetrating Radar Applications,” Proc. 2nd IEEE International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka, pp 199-202, Aug. 2007.
  1. D. Uduwawala, “Design and Fabrication of an RF Energy Meter Part 3: Antenna for Power Density Measurements,” Proc. Peradeniya University Research Sessions (PURSE), Peradeniya Sri Lanka, pp 519-521, Dec. 2009.
  1. C. S. R. Fernando and D. Uduwawala, “A Parametric Study of Equiangular Spiral Antenna (Arm type),” Proc. 4th IEEE International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka, pp 89-93, Dec. 2009.
  2. J. M. J. W. Jayasinghe and D. Uduwawala, “Design of Broadband Patch Antennas using Genetic Algorithm Optimization,” Proc. 5th IEEE International Conference on Industrial and Information Systems (ICIIS), Mangalore, India, pp 60-65, Aug. 2010.
  1. J. M. J. W. Jayasinghe and D. Uduwawala, “Genetic Algorithm Optimization of Designing Patch Antennas,” Proc. 3rd Symposium on Applied Science, Business & Industrial Research, ASBIRES 2011, Wayamba University of Sri Lanka, pp 142-145, April 2011.
  1. J. M. J. W. Jayasinghe and D. Uduwawala, “Design of a Dual Band Antenna for Bluetooth and HIPERLAN2 Applications using Genetic Algorithm Optimization,” Proc. 2011 6th IEEE International Conference on Industrial and Information Systems (ICIIS), Peradeniya Sri lanka, pp 283-287, Aug. 2011.
  1. J. M. J. W. Jayasinghe and D. Uduwawala, “A Broadband Triple-Frequency Patch Antenna for WLAN Applications using Genetic Algorithm Optimization,” Proc. 2012 7th IEEE International Conference on Industrial and Information Systems (ICIIS), Madras, India, 978-1-4673-2605-6/12/$31.00/© 2012 IEEE, Aug. 2012.
  1. H. M. P. B. Ranasinghe, S. M. P. Senanayake, U. I. P. Senaratne, A. U. A. W. Gunawardena, and Disala Uduwawala, “Design of a Low Cost Cavity Backed Wideband Bow-tie Antenna for Ground Penetrating Radar Systems,” Proc. 2013 IEEE 8th  International Conference on Industrial and Information Systems (ICIIS), Peradeniya Sri lanka, pp 370-375, Dec. 2013.
  1. Jeevani W. Jayasinghe and Disala Uduwawala, “A Novel Miniature Multi-Frequency Broadband Patch Antenna for WLAN Applications,” Proc. 2013 IEEE 8th International Conference on Industrial and Information Systems (ICIIS), Peradeniya Sri lanka, pp 361-363, Dec. 2013.
  1. D. K. Wijewardena, J. N. N. Shereen K. M. D. E. Karunarathna, M. A. R. M. Fernando, J. R. S. S. Kumara and  D. N. Uduwawala, “PD Signature Identification using RF Antenna for Condition Monitoring in Power Transformers,” Proc. Peradeniya University International Research Sessions (iPURSE), Peradeniya Sri Lanka, pp 105, Nov. 2015.
  1. B. M. S. Basnayake, L. W. Dilrukshi, K. M. M. H. Samarakoon, M. A. R. M. Fernando, J. R. S. S. Kumara and  D. N. Uduwawala, “RF Antenna for Discharge Detection of Salt-Polluted HV Insulators,” Proc. Peradeniya University International Research Sessions (iPURSE), Peradeniya Sri Lanka, pp 114, Nov. 2015.
  1. T. D. M. P. T. Bandara, G. K. W. K. N. B. Basnayaka, M. L. Silva, M. A. R. M. Fernando, J. R. S. S. Kumara and  D. N. Uduwawala, “Voltage and Current Sensors for 33 kV EM Field Based Fault Indicators,” Proc. Peradeniya University International Research Sessions (iPURSE), Peradeniya Sri Lanka, pp 117, Nov. 2015.
  1.  K. T. D. Priyankara and D. N. Uduwawala,  “Low Cost Antenna Ranging System,” Proc. Peradeniya University International Research Sessions (iPURSE), Peradeniya Sri Lanka, pp 126, Nov. 2015.
  1. Jeevani Jayasinghe, Disala Uduwawala and Jaume Anguera, “Design of a Linearly-polarized High-Directivity Microstrip Patch Antenna,” Proc. 2015 IEEE 10th International Conference on Industrial and Information Systems (ICIIS), Peradeniya Sri lanka, pp 210-213, Dec. 2015.
  1. Jaume Anguera, Aurora Andújar, Jeevani Jayasinghe, Disala Uduwawala, Muhammad K Khattak and Sungtek Kahng, “Nature-Inspired High-Directivity Microstrip Antennas: Fractals and Genetics,” Proc. 2016 8th International Conference on Computational Intelligence and Communication Networks (CICN), Tehri, India, pp 204-207, 2016.

 

  1. Slawomir Koziel, Jeevani W Jayasinghe, J Anguera, Qingsha S Cheng and Disala N Uduwawala, “Optimization of high-directivity fan-beam antennas,” Proc. 2017 International Applied Computational Electromagnetics Society Symposium (ACES), Suzhou, China, 2017.
  1. Slawomir Koziel, Omar Saraereh, Jeevani W Jayasinghe and Disala Uduwawala, “Local optimization of a Sierpinski carpet fractal antenna,” Proc. 2017 IEEE International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka, 2017.
  1. D. N. Uduwawala and J. W. Jayasinghe, “Performance Improvement of Patch Antennas using Modified Fractals,” Proc. Peradeniya University International Research Sessions (iPURSE), Peradeniya, Sri Lanka, Vol. 22, pp 13, Sept. 2019.

  1. D. Uduwawala, J. Jayasinghe and N. Narampanawe, “Genetically Designed High Gain Sierpinski Carpet Fractal Antenna,” Proc. 2019 IEEE 14th International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka, pp. 11-14, Dec. 2019.

  1. HMSM Herath, JMJW Jayasinghe, DN Uduwawala, “Performance Improvement of Printed Log Periodic Dipole Array Antennas,” Proc. 2021 IEEE 16th International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka, pp. 52-57, Dec. 2021.
  1. Aruna Gunawardena, Disala Uduwawala, Anil Pradeep Kumara, Assajie Bandara, “A Low Cost Yagi Log-periodic Antenna for 4G/LTE,” Proc.  2021 From Innovation To Impact (FITI).
  1. H Herath, J Jayasinghe, DN Uduwawala, 202“m-Segment Printed Log Periodic Dipole Array Antennas,”  Proc.2023 IEEE 17th  International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka, pp 97-102, Aug. 2023.
  1. G. Liyanage, K. Gimhana, S. Rathnayake, AUAW Gunawardena, DN Uduwawala, “Beamforming in Intelligent Reflecting Surfaces: Simulation, Prototype Design and Field Measurements,” Proc. 2023 IEEE 17th International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka, pp 97-102, Aug. 2023.

   

 

 

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  1. HMCJ Herath, HMGGJG Herath, KMUI Ranaweera, DN Uduwawala, PRP Hoole, “5/6G, Smart Antennas and Coding the Algorithms: Linear ANN, Non-linear ANN, and LMS,” Smart Antennas and Electromagnetic Signal Processing in Advanced Wireless Technology,  pp 361-383, River Publishers, New York, ISBN 9788770222068, 2022.

   

 

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