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AWARDS

  • NSERC Postgraduate Scholarship - Doctorate Level - (2007-2011).

  • University of Waterloo President’s Scholarship - (2007-2011).

  • University of Waterloo Special Graduate Student Entrance Award (2007).

  • Association of Professional Engineers, Geologists, and Geophysicists of Alberta (APEGGA) Gold Medal in Electrical Engineering (2007).

PUBLICATIONS

Refereed Journal Publications

  • X. Fu, D. T. Bespalko, and S. Boumaiza, “Novel Dual-Band Matching Network for Effective Design of Concurrent Dual-Band Power Amplifiers, IEEE Transactions on Circuits and Systems I, vol. 61, no. 1, pp. 293-301, Jan. 2014. 

  • L. Betts, D. T. Bespalko and S. Boumaiza, “Application of Agilent’s PNA-X NVNA and X-Parameters in Power Amplifier Design,” Microwave Journal, pp.1–16, May 2011. 

  • D. T. Bespalko and S. Boumaiza, “Concurrent Dual-Band GaN Power Amplifier with Compact Microstrip Matching Network,” Microwave and Optical Technology Letters, vol. 51, no. 6, pp.1604–1607, Jun. 2009. 

Refereed Conference Publications

  • D. T. Bespalko, B. Ivira, “Rugged high-power mismatch characterization of a high-performance band 41 FBAR filter designed for HPUE applications,” I2017 IEEE MTT-S International Microwave Symposium (IMS), Jun. 2017.

  • D. T. Bespalko, A. Amini, and S. Boumaiza, “A High-Order Model Looking Beyond the First-Order Harmonic Superposition Assumption,” IEEE Radio Wireless Week, Jan. 2016. 

  • D. T. Bespalko, and S. Boumaiza, “Enhanced PHD Model Extraction by Improving Harmonic Response Superposition During Extraction,” 86th ARFTG Conference, Atlanta, GA, USA, Dec. 2015. 

  • A. Amini, D. Bespalko, and S. Boumaiza,“On the Poly-Harmonic Distortion Modeling Framework and its Practical Realization,” IEEE Topical Symposium on Power Amplifiers for Wireless Communications, Sep. 2012. 

  • X. Fu, D. T. Bespalko, and S. Boumaiza, “Novel dual-band matching network topology and its application for the design of dual-band Class J power amplifiers,” IEEE MTT-S International, Jun. 2012. 

  • D. Bespalko, and S. Boumaiza, “Nonlinear Device Characterization and Model- ing for High Power Amplifier Design,” 12th annual IEEE Wireless and Microwave Technology (WAMI) Conference, Apr. 2011. 

  • D. T. Bespalko and S. Boumaiza, “X-parameter Measurement Challenges for Un- Matched Device Characterization,” Microwave Measurements Conference (ARFTG), 2010 75th ARFTG. IEEE, Jun. 2010. 

INVITED PRESENTATIONS

  • D. T. Bespalko, S. Boumaiza, “Systematic Improvement of PHD Model Prediction by Improving Harmonic Source Superposition During Model Extraction,” ARFTG NVNA Open Forum, Nov. 2015. 

  • D. T. Bespalko, S. Boumaiza, “Evolution from Nonlinear Device Characterization Test-bench to Behavioural Model Extraction of High Power Transistors,” ARFTG NVNA Open Forum, Nov. 2011. 

  • L. Betts, D. T. Bespalko, S. Boumaiza, “Power Amplifier Design Utilizing the NVNA and X-Parameters,” Micro-Application, International Microwave Symposium, Jun. 2011. 

  • D. T. Bespalko, D. Wu, and S. Boumaiza, “Load-Pull based X-Parameter for Waveform Engineered High Efficiency Power Amplifiers,” Focus Microwave Annual User Seminar Nonlinear and Noise Device Characterization, Jun. 2009. 

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