Electrical Engineering and Computer Science

Dr. Mohammad Almalkawi

Prestige Faculty

Contact Information

EECS Department
The University of Toledo
Toledo,OH 43606 
Tel: (419) 530-8260 
Office: NI 2051 
E-mail: Mohammad.Almalkawi@utoledo.edu 

Recent Courses

• EECS 6980 - Computer Aided Modeling & Design of Circuits
• EECS 3720 - Electromagnetics II

Current Students

• PhD: Khair Al-Shamaileh (Co-Advisor), Srikanth Itapu (Co-Advisor), Abhishek Sahu (Co-Advisor)

Research Interests

• Design and modeling of passive and active RF/microwave circuits including (but not limited to): Filters; Power combiners/splitters; Matching circuits; Amplifiers; Circulators; Multi-band circuits; Reconfigurable circuits.
• Microwave filter syntheses
• Implementation of microwave circuits in various technologies including (but not limited to): Planar; Coplanar WG; Ridge WG; Substrate integrated waveguide (SIW); Stripline & suspended stripline; Dielectric resonators.
• Computational electromagnetic methods (FDTD).
• Reconfigurable and broadband antennas.
• Electromagnetic compatibility and signal integrity including (but not limited to): Shielding effectiveness of metallic enclosures; Crosstalk reduction techniques in PCB interconnects.
• RF parameter extraction techniques
• Plasma applications to RF/microwave tunable circuits
• Machine learning algorithms (e.g., ANN) and their applications
• Free space optical (FSO) communications
• Medical image processing.

Biography

Dr. Mohammad Almalkawi received his B.Sc. (Hons) in Telecommunications Engineering from Yarmouk University, Jordan, in 2007, his M.Sc. in Electrical Engineering from South Dakota School of Mines & Technology, SD, USA, in 2009, and his Ph.D. in Engineering from the University of Toledo, OH, USA, in 2011. In the summer of 2011, he joined Freescale Semiconductor, Tempe, AZ as an RF Modeling Engineer-Intern. From Jan. 2012 to May 2012, he was appointed as a Postdoctoral Research Associate in the EECS Department at the University of Toledo and from May 2012 to Oct. 2013 as a Research Assistant Professor with the same department. From Nov. 2013 to Jan. 2015, he joined Directed Energy Incorporated as a Senior Research Scientist. Currently, Dr. Almalkawi is with Qorvo (previously TriQuint) as a development Engineer. Dr. Almalkawi was the recipient of the best Ph.D. dissertation award of the year 2012. His biography has been selected for inclusion in the 30th edition of Who’s Who in the World. He served as a Track Chair for the "Microwave Devices and Circuits Track" of the 2013 IEEE AEMC conference. Currently serving as a member of the editorial board for the RFMiCAE Journal and as an associate editor for the IET Electronics letters. He is also a reviewer for several IEEE journals and international conferences.

Recent Publications

• M. Almalkawi, “Broadband annular-ring dielectric resonator antenna,” Int. J. of Electrical, Computer, Energetic, Electronic and Communication Engineering, vol. 9, pp. 622-625, Dec. 2015.
• M. Almalkawi, “High gain circularly polarized wire antenna for DSRC applications,” Int. J. of Electrical, Computer, Energetic, Electronic and Communication Engineering, vol. 9, pp. 544-547, Oct. 2015.
• M. Almalkawi, K. Alshamaileh, S. Abushamleh, and H. M. Al-Rizzo, “A new class of compact linear printed antennas," Progress in Electromagnetics Research C (PIERC), vol. 57, pp. 61-69, April 2015.
• S. Itapu, M. Almalkawi, and V. Devabhaktuni, “A 0.8-8GHz multi-section coupled line balun,” Electronics Journal, vol. 4, pp. 274-282, April 2015.
• K. Alshamaileh, M. Almalkawi and V. Devabhaktuni, “Dual band-notched microstrip-fed Vivaldi antenna utilising EBG structures,” International Journal of Antennas and Propagation, pp. 1-7, Feb. 2015.
• K. Alshamaileh, M. Almalkawi, R. Junuthula, V. Devabhaktuni, and P. Aaen, “ANN-based modeling of compact impedance-varying transmission lines with applications to ultra-wideband Wilkinson power dividers,” Int. Journal of RF and Microwave Computer-Aided Engineering, Feb. 2015.
• M. Almalkawi, L. Cross, and K. Alshamaileh, “A transmission line circuit-oriented approach for miniaturization of a log-periodic dipole array (LPDA) antenna,” IEEE 57th International Midwest Symposium on Circuits and Systems, pp. 73-76, College Station, TX, Aug. 2014.
• A. Sahu, B. Grayczyk, M. Almalkawi, V. Devabhaktuni, and P. Aaen, “High-Q spiral inductors with multilayered split ring resonator (SRR) patterned ground shields,” IEEE International Symposium on Antennas and Propagation, pp. 346-347, Memphis, TN, July 2014.
• A. Sahu, M. Almalkawi, and V. Devabhaktuni, “SIW diplexer loaded with complementary stepped impedance S-shaped resonators,” Progress in Electromagnetics Research Letters, vol. 48, pp. 117-121, Aug. 2014.
• A. Madanayake, N. Udayanga, C. Wijenayake, M. Almalkawi, and V. Devabhaktuni, “Directional cyclostationary feature detectors using 2-D IIR RF spiral-antenna beam digital filters,” IEEE International Symposium on Circuits and Systems, Melbourne, Australia, pp. 2499–2502, June 2014.
• M. Almalkawi, X. Li, K. Alshamaileh, and V. Devabhaktuni, “A new miniaturization approach for frequency dependent planar antennas: monopoles and dipoles,” The 30th International Review of Progress in Applied Computational Electromagnetics (ACES), Jacksonville, Florida, March 2014.
• K. Alshamaileh, M. Almalkawi, V. Devabhaktuni, N. Dib, and S. Abushamleh, “Realization of multi-band 3-dB branch-line couplers using Fourier-based transmission line profiles,” Electromagnetics, vol. 34, no. 2, pp. 128-140, Jan. 2014.
• M. Almalkawi, K. Alshamaileh, and V. Devabhaktuni, “Effect of PCB traces with continuous impedance perturbation on crosstalk immunity," Int. Microwave and RF Conference, Delhi, India, Dec. 2013. (Accepted)
• M. Almalkawi, K. Alshamaileh, and S. Abushamleh, “Non-uniform PCB traces with prescribed frequency bands for improved crosstalk immunity," Journal of Electromagnetic Waves and Applications, vol. 28, no. 3, pp. 295-305, Dec. 2013.
• L. Cross and M. Almalkawi, “Scan angle stability of a second-order plasma-switched frequency selective surface,” COMSOL Conference, Boston, MA, Oct. 2013.
• K. Alshamaileh, M. Almalkawi, V. Devabhaktuni, N. Dib, B. Hennen, and A. Abbosh, “Non-uniform transmission line ultra-wideband Wilkinson power divider,” Progress in Electromagnetics Research C, vol. 44, pp. 1-11, 2013.
• A. Madanayake, R. Joshi, C. Wijenayake, M. Almalkawi, L. Belostotski, L. Bruton, and V. Devabhaktuni, “Electronically scanned RF-to-bits beam aperture arrays using 2-D IIR spatially bandpass digital filters,” Elsevier - Multidimensional Systems and Signal Processing, pp. 1-23, Sept. 2013.
• L. Mareddy, M. Almalkawi, S. Vemuru, M. Bakr, and V. Devabhaktuni, “Trust region based optimization of PKI neural models for RF/microwave devices,” Int. Journal of RF and Microwave Computer-Aided Engineering, vol. 23, no. 5, pp. 559-569, Sept. 2013.
• K. Alshamaileh, M. Almalkawi, V. Devabhaktuni, N. Dib, B. Hennen, and A. Abbosh, “Fourier-based transmission line ultrawideband Wilkinson power divider for EARS applications,” IEEE Midwest Symposium on Circuits and Systems, Columbus, OH, Aug. 2013.
• L. Cross, M. Almalkawi, and V. Devabhaktuni, “Development of large-area switchable plasma device for X-band applications,” IEEE Transactions on Plasma Science, vol. 41, no. 4, pp. 948-954, April 2013.
• L. Cross, M. Almalkawi, and V. Devabhaktuni, “Theory and demonstration of narrowband bent hairpin filters integrated with AC-coupled plasma limiter elements,” IEEE Transactions on Electromagnetic Compatibility, no. 99, pp. 1-7, Mar. 2013.
• L. Cross, M. Almalkawi, and V. Devabhaktuni, “Half mode substrate integrated waveguide (HMSIW) loaded evanescent-mode bandpass filter,” Int. Journal of RF and Microwave Computer-Aided Engineering, vol. 23, no. 2, pp. 172-177, Mar. 2013.
• M. Westrick, M. Almalkawi, V. Devabhaktuni, and C. Bunting, “A low-profile, low-cost antenna system with improved gain for DSRC vehicle-to-vehicle communications,” Int. Journal of RF and Microwave Computer-Aided Engineering, vol. 23, no. 1, pp. 111-117, Jan. 2013.
• M. Almalkawi, M. Westrick, and V. Devabhaktuni, “Compact super wideband monopole antenna with switchable dual band-notched characteristics,” Asian-Pacific Microwave Conference, pp. 723-725, Kaohsiung, Taiwan, Dec. 2012.
• K. Alshamaileh, M. Almalkawi, V. Devabhaktuni, and N. Dib, “Compact tunable 3 dB hybrid and Rat-Race couplers with harmonics suppression,” Int. Journal of Microwave and Optical Technology, vol. 7, no. 6, pp. 372-379, Nov. 2012.
• M. Almalkawi and V. Devabhaktuni, “Compact realization of combline bandpass filter integrated with defected microstrip structure bandstop filter,” Progress in Electromagnetics Research Letters, vol. 35, pp. 99-105, Oct. 2012.
• L. Mareddy, M. Almalkawi, V. Devabhaktuni, S. Vemuru, L. Zhang, and P. Aaen, “Gradient based reverse ANN modeling approach for RF/Microwave computer aided design,” The European Microwave Integrated Circuits Conference, pp. 246-249, Amsterdam, Netherland, Oct. 2012.
• M. Almalkawi, C. Bunting, V. Devabhaktuni, and A. Sebak, “Waveguide tubes coated with inhomogeneous lossy materials for superior shielding above and below cutoff frequency,” IEEE Magnetics Letters, vol. 3, no. 0500304, July 2012.
• N. Arbabi, M. Almalkawi, V. Devabhaktuni, M. Yagoub, and A. Madanayake, “A compact realization of composite lowpass filter for monolithic microwave integrated circuit (MMIC) applications,” Int. Journal of RF and Microwave Computer-Aided Engineering, vol. 22, no. 2, pp. 147-152, Mar. 2012.
• M. Almalkawi, M. Westrick, V. Devabhaktuni, M. Alam, L. Zhu, and Jing Deng, “Design of a dual-band dual-mode substrate integrated waveguide filter with symmetric transmission zeros,” IEEE Applied Electromagnetics Conference, pp. 1-3, Kolkata, India, Dec. 2011.
• M. Almalkawi, L. Zhu, and V. Devabhaktuni, “Dual-mode substrate integrated waveguide (SIW) bandpass filters with an improved upper stopband performance,” 36th Int. Conference on Infrared, Millimeter, and Terahertz Waves, pp. 1-2, Houston, TX, Oct. 2011.
• M. Almalkawi, L. Zhu, and V. Devabhaktuni, “Magnetically tunable substrate integrated waveguide bandpass filters employing ferrites,” 36th Int. Conference on Infrared, Millimeter, and Terahertz Waves, pp. 1-2, Houston, TX, Oct. 2011.
• M. Almalkawi and V. Devabhaktuni, “Ultrawideband antenna with triple band-notched characteristics using closed-loop ring resonators,” IEEE Antennas and Wireless Propagation Lett., vol. 10, pp. 959-962, Sept. 2011.
• M. Almalkawi and V. Devabhaktuni, “Quad band-notched UWB antenna compatible with WiMAX/INSAT/lower-upper WLAN applications,” IET Electronics Letters, vol. 47, no. 19, pp. 1062-1063, Sept. 2011.
• M. Almalkawi and V. Devabhaktuni, “Far-end crosstalk reduction in PCB interconnects employing stepped impedance elements and open-circuited stubs,” Int. Journal of RF and Microwave Computer-Aided Engineering, vol. 21, no. 5, pp. 596-601, Sept. 2011.
• W. Fathelbab and M. Almalkawi, “Realization of dual-band filter characteristics by box configurations,” Progress in Electromagnetics Research Letters, vol. 22, pp. 175-180, Mar. 2011.
• M. Almalkawi, Z. Khan, V. Devabhaktuni, and C. Bunting, “Far-end crosstalk reduction in adjacent PCB traces employing High/Low-Z configurations,” IEEE Int. Symposium on Electromagnetic Compatibility, pp. 760-763, Fort Lauderdale, FL, July 2010.
• K. Gharaibeh, M. Almalkawi, and A. Hamza, “An interactive simulation tool for image registration education,” Computer Application in Engineering Education, vol. 18, no. 2, pp. 225-237, Jun. 2010.
• W. Fathelbab and M. Almalkawi, “Narrowband filters with tightly coupled resonators,” IET Microwaves, Antennas & propagation, vol. 4, no. 2, pp. 269-276, Feb. 2010.
• W. Fathelbab and M. Almalkawi, “A stepped-impedance substrate integrated waveguide (SIW) bandpass filter,” IEEE Radio and Wireless Symposium, New Orleans, LA, Jan. 2010.
• M. Almalkawi and W. Fathelbab, “Novel implementations of dual- and triple-band filters on double sided-substrates,” IEEE Radio and Wireless Symposium, pp. 79-82, San Diego, CA, Jan. 2009.