Engineer Design

Dr. Wael M. Fathelbab

(Residency Status: US Permanent Resident)

Assistant Professor

South Dakota School of Mines & Technology

Department of Electrical & Computer Engineering

*** **** **. ****ph Street

Rapid City

South Dakota

57701-3995

Telephone No.: 605-***-****; Email: **********@****.***

Autobiography

Wael M. Fathelbab received the Bachelor of Engineering with first class

honors from the University of Bradford, UK in 1995. In 1995 he was also

awarded the prestigious "Overseas Research Students" award from the UK

department of higher education and the Filtronic Comtek (UK) Ltd. (now

PowerWave Technologies Inc.) industrial sponsorship to pursue the degree of

Doctor of Philosophy (PhD) at the University of Bradford. In 1999 he

successfully completed his doctorate degree which was focused the

application of predistortion techniques to synthesize miniaturized

microwave filters comprising finite-Q resonators.

From 1999 to 2001, he was a senior Radio Frequency engineer at Filtronic

Comtek (UK) Ltd., where he was involved in the design and development of

different classes of filters and multiplexers for various cellular base-

station applications. From 2001 to 2002, he was a member of the mobile

handset division at NEC Technologies (UK) Ltd. where he focused on the

design of novel RF front-end transceiver architectures for the UK and

European cellular markets. During the period of 2002 to 2006, he was

appointed a Research Fellow at the Department of Electrical and Computer

Engineering, North Carolina State University, USA where he worked with

Professor Michael B. Steer on various US Army Research Office projects.

Dr. Fathelbab's research interests are currently focused on the

application of classical synthesis techniques in the design of novel RF and

microwave circuits particularly the implementation of miniaturized

reconfigurable passive filters and couplers. He is also interested in the

design of ultra-broadband differential and meta-material circuits; high

frequency distributed amplifiers; and the miniaturization of waveguide

components.

Dr. Fathelbab has been an active reviewer of the IEEE Transactions on

Microwave Theory and Techniques since 2003; a reviewer of the IET

Microwaves, Antennas & Propagation since 2005; and an associate editor of

the International Journal of Electronics since 2006. Dr. Fathelbab was

recently invited to join the MTT-8 Filters & Passive Components sub-

committee (www.mtt.org/~mtt8/index.htm) and has served as a panelist for

the Integrative, Hybrid & Complex Systems (IHCS)

(http://www.nsf.gov/funding/pgm_summ.jsp?pims_id=13381) program of the

National Science Foundation's Division of Electrical, Communications and

Cyber Systems (ECCS) in January 2010.

Research Interests

. Application of Circuit Synthesis Techniques in the design of novel

passive and active RF & microwave components including (but not limited

to):

Filters, Couplers; Baluns; Phase Shifters; Power Combiners/Splitters;

Matching Circuits; Multiplexers; Amplifiers; Oscillators; Circulators;

Frequency Multipliers; Multi-band Circuits; Reconfigurable/Ultra-Wideband

Circuits; Meta-Material Circuits; Differential Circuits

. Implementation of novel RF & microwave circuits in various technologies

including (but not limited to):

Planar; Coplanar Waveguide; Waveguide; Evanescent Waveguide; Ridge

Waveguide; E-Plane Waveguide; Coaxial; Stripline and Suspended Stripline;

Dielectric Resonators

. Ferroelectric tunable/reconfigurable filters

Education

. University of Bradford (www.bradford.ac.uk), United Kingdom

Bachelor of Engineering (B.E.) with first class honors in Electrical and

Electronic Engineering

Graduation year: 1995

. University of Bradford (www.bradford.ac.uk), United Kingdom

Doctor of Philosophy (Ph.D.) in Microwave Engineering

Title of Ph.D. dissertation: Synthesis of passive filters with finite Q

circuit elements

Graduation year: 1999

Institutional Affiliations

1. South Dakota School of Mines and Technology (www.sdsmt.edu), Department

of Electrical & Computer Engineering, Rapid City, South Dakota

Period: 8/2006-present

Position held: Assistant Professor

2. North Carolina State University (www.ncsu.edu), Department of Electrical

& Computer Engineering, Raleigh, North Carolina

Period: 5/2002-7/2006

Position held: Research Fellow

3. NEC Technologies (U.K.) Ltd. (www.nectech.co.uk), Reading, United

Kingdom

Period: 1/2001-5/2002

Position held: Senior Radio Frequency Engineer

4. Filtronic Comtek (U.K.) Ltd. (www.filtronic.co.uk), Bradford, United

Kingdom

Period: 1/1999-1/2001

Position held: Senior Microwave Filter Engineer

Awards and Sponsorships

1. Overseas Research Students Awards Scheme (ORSAS) awarded by the United

Kingdom's department of higher education to pursue the degree of Doctor

of Philosophy

Period: 9/95-1/99

2. Filtronic Comtek (UK) Ltd. industrial sponsorship to pursue the degree

of Doctor of Philosophy

Period: 9/95-1/99

Industrial & Academic Experiences

My first job at Filtronic Comtek (UK) Ltd. involved the prototyping and

manufacturing of RF/Microwave filters and multiplexers for the European and

US base-station markets. This work gave me a lot of experience with the

design of bandpass Combline filters as well as the design of

lowpass/highpass/bandstop filters realized in microstrip and stripline

technologies. Simulation, prototyping and testing leading to the mass

production of these filters to suit stringent customer specifications were

the essence of my job. This job enabled me to apply my solid theoretical

knowledge that I gained during my PhD study to become a skilled filter

designer.

My second job at NEC Technologies (UK) Ltd. gave me the opportunity to work

in an R&D environment that was focused on the design of novel RF front-end

transceiver architectures for the UK and European mobile phone markets. The

job involved system-level design and analysis, the test and evaluation of

transceiver performance.

My third job at NC State University took me back to the research arena.

There I researched novel design methodologies that led to the dramatic

miniaturization of passive components specifically filters, couplers, and

baluns. While at NC State I also collaborated with researchers in the

Materials Science department with the aim of fabricating reconfigurable

microwave filters that utilized ferroelectric Barium Strontium Titanate

capacitors. My work resulted in many peer-reviewed journal and conference

publications. This job further contributed in the development of my

research skills.

My fourth job at South Dakota School of Mines gave me the golden

opportunity to utilize my accumulated industrial experiences and academic

knowledge to educate the next generation of electrical engineers. In

addition to teaching, I also performed research, supervised

undergraduate/graduate students, and published many papers in refereed

journals and conferences.

Publications

Copies of all publications are available from:

http://www.hpcnet.org/cgi-bin/global/a_bus_card.cgi?SiteID=421505

Journals

1. W. M. Fathelbab and I. C. Hunter: "A Prototype for Predistorted Highpass

Filters", International Journal of RF & Microwave Computer Aided

Engineering, Vol. 8, No. 2, pp. 156-160, Mar. 1998.

2. W. M. Fathelbab, I. C. Hunter and J. D. Rhodes: "Synthesis of Lossy

Reflection-Mode Prototype Networks with Symmetrical and Asymmetrical

Characteristics" IEE Proceedings on Microwave, Antennas and Propagation,

Vol. 146, No. 2, pp. 97-104, Apr. 1999.

3. W. M. Fathelbab, I. C. Hunter and J. D. Rhodes: "Synthesis of

Predistorted Reflection-Mode Hybrid Prototype Networks with Symmetrical

and Asymmetrical Characteristics" International Journal of Circuit Theory

& Applications, Vol. 29, No. 3, pp. 251-266, May-June 2001.

4. W. M. Fathelbab and M. B. Steer: "Distributed Biasing of Differential RF

Circuits", IEEE Transactions on Microwave Theory and Techniques, Vol. 52,

pp. 1565-1572, May 2004.

5. W. M. Fathelbab and M. B. Steer: "A Reconfigurable Bandpass Filter for

RF/Microwave Multifunctional Systems", IEEE Transactions on Microwave

Theory and Techniques, (special issue on Multifunctional Systems), Vol.

53, pp. 1111-1116, Mar. 2005.

6. W. M. Fathelbab and M. B. Steer: "New Classes of Miniaturized Planar

Marchand Baluns", IEEE Transactions on Microwave Theory and Techniques,

Vol. 53, pp. 1211-1220, Apr. 2005.

7. W. M. Fathelbab and M. B. Steer: "Four-Port Microwave Networks with

Intrinsic Broadband Suppression of Common-Mode Signals", IEEE

Transactions on Microwave Theory and Techniques, Vol. 53, pp. 1569-1575,

May 2005.

8. W. M. Fathelbab and M. B. Steer: "Parallel-Coupled Line Filters with

Enhanced Stopband Performances", IEEE Transactions on Microwave Theory

and Techniques, Vol. 53, pp. 3774-3781, Dec. 2005.

9. J. Nath, D. Ghosh, J. P. Maria, A. I. Kingon, W. M. Fathelbab, P.D.

Franzon and M. B. Steer: "An Electronically-Tunable Microstrip Bandpass

Filter Using Thin-Film Barium Strontium Titanate (BST) Varactors", IEEE

Transactions on Microwave Theory and Techniques, Vol. 53, pp. 2707-2712,

Sep. 2005.

10. W. M. Fathelbab and M. B. Steer: "Tapped Marchand Baluns for Matching

Applications", IEEE Transactions on Microwave Theory and Techniques, Vol.

54, pp. 2543-2551, Jun. 2006.

11. W. M. Fathelbab and M. B. Steer: "Design of Bandstop Filters Utilising

Circuit Prototypes", IET Microwaves, Antennas and Propagation, Vol. 1,

pp. 523-526, Apr. 2007.

12. W. M. Fathelbab: "Synthesis of Cul-De-Sac Filter Networks

Utilizing Hybrid Couplers", IEEE Microwave and Wireless Components

Letters, Vol. 17, pp. 334-336, May 2007.

13. W. M. Fathelbab and M. B. Steer: "Filter Prototypes Comprising Singlet

and/or In-Line Sections", International Journal of Electronics, Vol. 94,

No. 10, pp. 925-934, Oct. 2007.

14. W. M. Fathelbab: "A New Class of Reconfigurable Microwave Bandpass

Filters", IEEE Transactions on Circuits and Systems II, (special issue on

Multifunctional Circuits & Systems for Future Generations of Wireless

Communications), Vol. 55, No. 3, pp. 264-268, Mar. 2008.

15. W. M. Fathelbab: "Design of a New Class of Microwave Biasing Networks

with Modal-Matching Properties", IET Microwaves, Antennas and

Propagations, Vol. 2, No. 4, pp. 331-337, June 2008.

16. W. M. Fathelbab: "The Synthesis of a Class of Branch-Line

Couplers", IEEE Transactions on Microwave Theory and Techniques, Vol. 56,

No. 8, pp. 1985-1994, Aug. 2008.

17. W. M. Fathelbab and M. J. Almalkawi: "Narrowband Filters with Tightly

Coupled Resonators", IET Microwaves, Antennas and Propagations, Vol. 4,

No. 2, pp. 269-276, Feb. 2010.

Conferences

18. W. M. Fathelbab and I. C. Hunter: "A Predistortion Technique for

Microwave Highpass Prototype Filters", IEE colloquium on RF & Microwave

Components for Communication Systems (Digest no.: 1997/126), pp. 2/1-

2/12, Bradford, U.K., Apr. 1997.

19. J. Nath, D. Ghosh, W. M. Fathelbab, J. P. Maria, A. I. Kingon, P. D.

Franzon and M. B. Steer: "A Tunable Combline Bandpass Filter using Barium

Strontium Titanate Interdigital Varactors on an Alumina Substrate", IEEE

International Microwave Symposium, Long Beach, California, Jun. 2005.

20. J. Nath, W. M. Fathelbab, P. G. Lam, D. Ghosh, S. Ayg n, K. G. Gard, J.

P. Maria, A. I. Kingon and M. B. Steer: "Discrete Barium Strontium

Titanate (BST) Thin-Film Interdigital Varactors on Alumina: Design,

Fabrication, Characterization, and Applications", IEEE International

Microwave Symposium, San Francisco, Jun. 2006.

21. W. M. Fathelbab, F. Khoury, J. J. Kellar and K. W. Whites: "Ultra-

Wideband (UWB) Hairpin-Comb Filters with Broad Stopband Performances",

IEEE Radio & Wireless Symposium, pp. 451-454, Orlando, Florida, Jan.

2008.

22. W. M. Fathelbab: "Dual-Band Marchand Baluns", IEEE International

Microwave Symposium, Atlanta, Georgia, pp. 679-682, Jun. 2008.

23. W. M. Fathelbab and H. M. Jaradat: "New Stepped-Impedance Parallel

Coupled-Line (PCL) Filters for Ultra-Wide Band (UWB) Applications",

European Microwave Conference, Amsterdam, Netherlands, pp. 496(499, Oct.

2008.

24. M. J. Almalkawi and W. M. Fathelbab: "Novel Implementations of Dual-

and Triple-Band Filters on Double-Side Substrates", IEEE Radio & Wireless

Symposium, San Diego, California, pp. 79-82, Jan. 2009.

25. H. M. Jaradat and W. M. Fathelbab: "Selective Lowpass Filters Realizing

Finite-Frequency Transmission Zeros", IEEE Radio & Wireless Symposium,

San Diego, California, pp. 252-255, Jan. 2009.

26. Z. Feng, W. M. Fathelbab, P. G. Lam, V. Haridasan, J. P. Maria, A. I.

Kingon and M. B. Steer: "A 6.2-7.5 GHz Tunable Bandpass Filter with

Integrated Barium Strontium Titanate (BST) Interdigitated Varactors

Utilizing Silver/Copper Metallization", IEEE Radio & Wireless Symposium,

San Diego, California, pp. 638-641, Jan. 2009.

27. Z. Feng, W. M. Fathelbab, P. G. Lam, V. Haridasan, J. P. Maria, A. I.

Kingon and M. B. Steer: "Narrowband Barium Strontium Titanate (BST)

Tunable Bandpass Filters at X-band", IEEE International Microwave

Symposium, Boston, Massachusetts, pp. 1061-1064, Jun. 2009.

28. W. M. Fathelbab and H. M. Jaradat: "Studying the Nature of

Electromagnetic Interaction between a Pair of Left-Handed Transmission

Lines", European Microwave Conference, Rome, Italy, pp. 512-515, Oct.

2009.

29. W. M. Fathelbab and M. J. Almalkawi, "A Stepped-Impedance Substrate

Integrated Waveguide (SIW) Bandpass Filter", IEEE Radio & Wireless

Symposium, New Orleans, Jan. 2010.

30. W. M. Fathelbab, H. M. Jaradat and D. Reynolds: "Two Novel Classes of

Band-Reject Filters Realizing Broad Upper Pass Bandwidth", To be

presented at the IEEE International Microwave Symposium, Anaheim,

California, Jun. 2010.

Under Review

31. W. M. Fathelbab and M. J. Almalkawi, "Realization of Dual-Band Filter

Characteristics by Box Configurations", Submitted to the Electronics and

Telecommunications Research Institute (ETRI) Journal.

32. W. M. Fathelbab: "Exact Synthesis of a Class of Parallel-Coupled Line

Filters", Submitted to the IEEE Transactions on Microwave Theory and

Techniques.

Under Preparation

33. W. M. Fathelbab: "A Novel Approach of Designing Interdigital

Filters", To be submitted to the IET Microwaves, Antennas and

Propagations.

34. W. M. Fathelbab: "Two Novel Classes of Bandstop Filters Capable of

Realizing Broad Upper Pass Bandwidths: Synthesis and Design", To be

submitted to the IEEE Transactions on Microwave Theory and Techniques

Special Issue on the 2010 International Microwave Symposium.

35. W. M. Fathelbab: "Design of a Novel Type of Spurline Bandpass

Filters", To be submitted to the IEEE Transactions on Microwave Theory

and Techniques.

Book Chapters

36. W. M. Fathelbab and M. B. Steer, "Broadband Network Design", in

Multifunctional Adaptive Microwave Circuits and Systems, Scitech

Publishing INC., pp. 238-313, 2009.

37. W. M. Fathelbab and M. B. Steer, "Tunable Filters", in Multifunctional

Adaptive Microwave Circuits and Systems, Scitech Publishing INC., pp. 314-

352, 2009.

Professional Activities

. Reviewer for:

IEEE Transactions on Microwave Theory and Techniques

IEEE Microwave and Wireless Components Letters

IEEE Microwave Magazine

IET Microwave, Antennas & Propagations

Electronics and Telecommunications Research Institute (ETRI) Journal

Proceeding of the South Dakota Academy of Sciences

. Associate editor of the International Journal of Electronics

Professional Memberships

. Senior member of the IEEE

. Member of the MTT-8 (Filters & Passive Components) sub-committee which

deals with network and filter theory, design, and practical

applications

Collaborators & Other Affiliations

i) Collaborators and Co-Editors

A. K. Amert, D. E. Anagnostou, S. P. Decker, J. J. Kellar, K. W. Whites

(South Dakota School of Mines and Technology, USA)

A. Morris (wiSpry, Inc., USA)

P. D. Franzon, Z. Feng, K. G. Gard, A. Kingon, P. Lam, J. P. Maria, J.

Nath, M. B. Steer (North Carolina State University, USA)

ii) Graduate Advisor

I. C. Hunter (University of Leeds, UK)

Postdoctoral Sponsor

M. B. Steer (North Carolina State University, USA)

Consultancies

. wiSpry, Inc., North Carolina, 2004

Students Supervised at SD School of Mines & Technology

1. Mr. Hamzeh M. Jaradat: Graduate research assistant completed a thesis-

based masters project, Sept. 2007 - 2009

2. Mr. Mohammad J. Almalkawi: Graduate research assistant completed a

thesis-based masters project, Sept. 2007 - 2009

3. Mr. Firas Khoury: Undergraduate research assistant, Summer 2007

4. Mr. Logan Leob: Undergraduate research assistant, Summer 2008

5. Mr. Daniel Reynolds: Undergraduate research assistant, Summer 2009

Classes Taught at SD School of Mines & Technology

. EE 481/EE 481L Microwave Engineering (3-1) 4 credits - Undergraduate

Presentation of basic principles, characteristics, and applications of

microwave devices and systems; development of techniques for analysis and

design of microwave circuits.

. EE 322/EE 322L Electronics II (3-1) 4 credits - Undergraduate

Emphasis on design applications of linear and nonlinear integrated

circuits; Students slowly build and thoroughly analyze the NorCal 40A

radio, which is a low power transceiver. Course material is based on the

textbook "The Electronics of Radio", by D. B. Rutledge.

. EE 692/EE 692L Advanced Microwave Engineering (3-1) 4 credits -

Postgraduate

Presentation of the fundamental principles involved in the design of

coupled-resonator microwave filters; and detailed study of the design

methods of microwave transistor amplifiers and oscillators.

. EE 311/EE 311L Control Systems (3-0.5) 3.5 credits - Undergraduate

Presentation of the mathematical, topological, and circuit models of

electro-systems, such as electromagnetic, electromechanical,

electrothermal, etc.

. EE 221/EE 221L Circuits II (3-1) 4 credits - Undergraduate

This course is designed to provide the electrical engineering student

with an understanding of the basic concepts of the profession. Topics

covered include resistive circuits, transient circuits, and sinusoidal

analysis. Students also investigate essential principles by conducting

laboratory experiments related to the topics studied in the classroom. P-

spice is used to analyze electrical circuits using personal computers.

. EE 421/421L COMMUNICATION SYSTEMS (3-1) 4 credits - Undergraduate

Presentation of the fundamentals of analog- and digital-signal

transmission; Introduction to system performance characteristics such as

channel loss, distortion, bandwidth requirements, signal-to-noise ratios,

and error probability

Non-Academic Interests

. Hiking

. Road cycling

. Volleyball

. Tennis

Contact this candidate