GULLU KIZILTAS

 

Assistant Professor, Faculty of Engineering and Natural Sciences
Room: 1075
Sabanci University
Orhanli, Tuzla 34956
Istanbul, Turkey
e-mail: gkiziltas@sabanciuniv.edu
Phone: + 90-216-4839584
Fax: +90-216-4839550

 

Research Interests

·        Design Optimization:

o       Optimization theory and algorithms

o       Optimal design of complex and new technology products

o       Domain-specific optimal design of mechanical structures, biomedical/biomechanical devices and electromagnetic systems (specifically patch antennas); multi-disciplinary design optimization of integrated thermo-mechanical and electrical systems

·        Material Design and Fabrication

o       Topology optimization for material microstructures

o       Homogenization method in mechanics of composites

o       Development of new synthetic materials for smart passively reconfigurable ground planes and MEMS technology for antenna reconfiguration

o       Sophisticated three-dimensional ceramic and inhomogeneous substrate fabrication (Solid Free Form Fabrication, Micro Fabrication by Co-Extrusion, etc.)

·        Computational Mechanics

o       Effective material characterization of nonlinear composites

o       Development of finite elements for computational mechanics and electromagnetics, with an emphasis on advanced micro-material modeling

o       Mathematical models and efficient computational procedures for material microstructure design

·        Electromagnetics (EM)

o       Theory of electromagnetic materials and design of novel composites

o       Development of finite element and integral computational methods (time and frequency domain) for efficient modeling of photonic crystals

o       Topology optimization methods for miniaturized RF applications

o       Domain-specific design applications: miniature narrowband antennas, multifunction arrays, broadband miniature antennas, miniature passive elements matching circuits, antennas-on-platforms etc.

 

Education    University of Michigan                                                                                Ann Arbor, MI

Ph. D. in Mechanical Engineering                                                           Sep’98–May’03

Thesis Co-Supervisors: Professor Noboru Kikuchi and Professor John L. Volakis

·  Topology optimization of high frequency EM applications via Solid Isotropic Material with Penalization (SIMP) method.

 

Course Highlights: Design Optimization, FEM in Mechanical Engineering and Electromagnetics, Theory of Solid Continua, Antenna Design, Making Decision under Uncertainty, Homogenization Design Method for Structures, Materials, and Mechanisms 

 

 

Middle East Technical University                                                       Ankara, TURKEY                

M.Sc. in Mechanical Engineering                                                         Sep ’95 - May ’98

Thesis Co-Supervisors: Professor Tuna Balkan and Professor Bilgin Kaftanoglu

·  Computer aided analysis and optimal design of automotive brakes and clutches for enhanced transmission system performance

 

Course Highlights: Variational Methods, Computer Aided Design, Tribology, Numerical Methods, Fracture Mechanics, Linear Programming

 

Middle East Technical University                                                       Ankara, TURKEY

B.Sc. in Mechanical Engineering                                                           Sep ’91 - Aug ’95

·  Design and construction of a single source driven floating machine to pick up a submerged object under the water and place it aside

 

Course Highlights: Mechanical Design, Finite Element Analysis, Dynamics of Machinery, Pipeline Engineering, Gas Dynamics, Engineering Economics

 

Honors          

CAREER Award, supported by TUBITAK, 2007-10

Marie Curie Reintegration Grant, supported by the European Commission, 2006-2008

Student Fellowship, 7th US National Congress on Computational Mechanics, 2003

Best Paper Award, Applied Computational Electromagnetics Society (ACES), 2002

Nomination, Marian Sarah Parker women leadership award, University of Michigan, 2002

Distinguished Leadership Award, College of Engineering, University of Michigan, 2001

Peer Woman Advisor, University of Michigan, 2000-2003

Chair, 1st Mechanical Engineering Graduate Symposium, University of Michigan, 2000

Executive Foundation Board, Mechanical Engineering Graduate Student Council, 1999

                        PhD Fellowship, Mechanical Engineering Department, University of Michigan, 1998

                        Graduate Fellowship, The Scientific and Technical Research Council of Turkey, 1998

Undergraduate Fellowship, Turkish Council of Higher Education, 1990-1995

 

Research Experience

Sabancı University, FENS, Mechatronics                                             Istanbul, Turkey

Assistant Professor                                                                                 Sept. ‘05–present

 

            University of Michigan, EECS Dept., Radiation Lab.                              Ann Arbor, MI

Post Doctoral Research Fellow                                                             May ‘03– Aug ‘05

·  Continued research on design, analysis and fabrication of miniaturized novel antennas for UHF frequencies

·  Investigated high-contrast material behavior to improve antenna radiation characteristics for network-centric future military platforms

·  Coordinated design (Radiation Lab.), testing (ElectroScience Lab.) and fabrication teams (Material Science Department) at the University of Michigan and the Ohio State University

 

 

Ohio State University, ECE Dept., ElectroScience Lab.                       Columbus, OH

Post Doctoral Research Fellow                                                             May ‘03– Aug ‘05

·  Designed non-intuitive VHF frequency conformal antennas with superior performance (ultra-wideband) on engineered meta-material substrates (ONR Project)

 

 

University of Michigan, ME Dept.                                                             Ann Arbor, MI

Graduate Student Research Assistant                                                              1998– 2003

·  Proposed the first topology optimization method for electromagnetic applications

·  Developed the first integrated material and conductor shape topology design algorithm for

electromagnetic applications

·  Designed 3D dielectric material topologies for a band-pass spectral filter working in THz region (Knoll Atomic Power Laboratory Project)

·   Studied and fabricated innovative, non-intuitive 3D dielectric material distributions for miniaturized antenna bandwidth enhancements (DARPA Project)

·  Performed an exact sensitivity analysis for complex-valued EM performance functions

·  Automated the optimal design process for synthesizing new materials with customized properties

·  Worked on size, shape and material optimization algorithms for RF applications (NSF project)

·  Integrated a full wave finite element code (FE-BI) with sequential linear programming (SLP) optimizer in FORTRAN

 

Middle East Technical University, ME Dept.                                    Ankara, TURKEY                

Graduate Student Research Assistant                                                              1995– 1998

·  Optimally designed size and material combinations of automotive brakes and clutches for maximum power transmission performance and minimum size requirement

·  Developed an optimization design algorithm using the Powell Method and developed user-interface in C++ for the integrated power transmission design of a FIAT truck

·  Studied thermal failure modes of friction type brakes and clutches and the temperature and pressure dependence of standard friction material pairs

 

Teaching Experience

Sabancı University, FENS, Mechatronics                                             Istanbul, Turkey

Assistant Professor                                                                                 Sept. ‘06–present

Courses Taught: ENS 512 Introduction to the Finite Element Method, EE 518 Multi-Disciplinary Design Optimization, ENS 204 Mechanics

 

University of Michigan, Mechanical Engineering                                               Ann Arbor, MI

Teaching Assistant                                                                                           1998 – 1999

·  Tutored junior students and prepared and graded homework and exam solutions for Design and Manufacturing (ME 350), Winter 2000 (Instructor: Professor Richard Scott, Enrollment:100)

·  Taught biweekly discussion sections of Design and Manufacturing (ME 350), Winter 1999 (Instructor: Professor Richard Scott, Enrollment:100) 

 

 

 

 

Middle East Technical University, Mechanical Engineering                       Ankara, TURKEY

Teaching Assistant                                                                                           1995 – 1998

·  Taught discussion sections, prepared and graded term projects and homework solutions, and designed experiments for Machine Elements 1 & 2 (ME 307/308), Fall 1995 to Fall 1998 (Instructor: Professor Metin Akkok, Enrollment: 180)

·  Coordinated senior student teams in designing and manufacturing a machine in their completion project of Mechanical Engineering Design (ME 407), Fall 1996, Winter 1997 (Instructor: Professor Abdulkadir Erden, Enrollment: 100)

·  Oversaw the execution of experiments in a measurement laboratory including internal combustion engine, strain gage, airfoil and quality control measurements of Mechanical Engineering Systems Laboratory (ME 410), Fall 1995, Winter 1996 (Instructor: Professor Demir Bayka, Enrollment: 100)

 

Other Professional Activities

·  Co-authored a Multidisciplinary Research Program of the University Research Initiative (MURI) proposal

·  Reviewed papers for the IEEE Transactions on Microwave Theory and Techniques on"Electromagnetics-Based Optimization of Microwave Components and Circuits", IEEE Transactions on Antennas and Propagation and various conferences

·  Summer internships at:

o       Mechanical Design Division, ASELSAN Electronic Industries Inc., Summer 1994

o       Turkish Agricultural and Equipments Supply Inc., Summer 1993

·                    Member of:

o       Computational Mechanics Lab., ME Dept., University of Michigan, 1999-present

o       Radiation Lab., EECS Dept., University of Michigan, 1999-present

o       ElectroScience Lab., ECE Dept., Ohio State University, 2003-present

 

Professional Memberships

·  Member IEEE and ASME

 

Skills          

Computing: UNIX, Windows, MS-DOS and Macintosh Environments, Fortran, Visual Basic, C, IDEAS, HYPERMESH, MathCAD 7, Matlab 

            Languages: English (Fluent), German (Fluent) and Turkish (Native)

 

List of Publications

Book Chapter

 

G. Kiziltas and S. Koulouridis, “Antenna Design and Optimization using FE-BI Methods” in Frequency Domain Hybrid Finite Element Methods in Electromagnetics, ISBN: 1598290800, MC Publishers, 2006

 

Journal Papers

1. S. Koulouridis, G. Kiziltas, Y. Zhou, D. Hansford, and J. L. Volakis, “Polymer – Ceramic Composites for Microwave Applications: Fabrication and Performance Assessment”, IEEE Transactions on Microwave Theory and Techniques, Vol 54, Nr: 12, Dec. 2006, pp:4202-4208

 

2. Yijun Zhou, Stavros Koulouridis, Gullu Kiziltas, and John L.Volakis,  “A Novel 1.5” Quadruple Antenna for Tri-Band GPS Applications”, Antennas and Wireless Propagation Letters (AWPL), Volume: 5, Nr: 1, Dec. 2006, pp:224-227

 

3. J. L. Volakis, G. Mumcu, K. Sertel, C.-C. Chen, M. Lee, B. Kramer, D. Psychoudakis and G. Kiziltas, “Antenna Miniaturization using Magnetic Photonic and Degenerate Band Edge Crystals”, IEEE Antennas and Propagation Magazine, Volume: 48, Nr: 5, Oct. 2006, pp: 12-28

 

4. Y. Koh, J. W. Halloran, G. Kiziltas, D. Psychoudakis, and J. L. Volakis, “Thermoplastic Green Machining for Textured Dielectric Substrate for Broadband Miniature Antenna,” Journal of American Ceramic Society, Vol. 88, Nr: 2, 2005, pp: 297-302

 

5. G. Kiziltas, J. L. Volakis and N. Kikuchi, “Design of a frequency selective structure with inhomogeneous substrates as a thermo-photovoltaic filter,” IEEE Transactions on Antennas and Propagations, Vol: 53, Nr: 7, 2005, pp 2282-2289.

 

6. G. Kiziltas, N. Kikuchi, J. L. Volakis and J. Halloran, “Dielectric material optimization for electromagnetic applications using SIMP,” Archives of Computational Methods in Engineering, Vol: 11, Nr: 4, 2004, pp: 355-388

 

7. G. Kiziltas, D. Psychoudakis, J. L. Volakis and N. Kikuchi, “Topology design optimization of dielectric substrates for bandwidth improvement of a patch antenna,” IEEE Transactions on Antennas and Propagation, Vol: 51, Nr: 10, Oct. 2003, pp: 2732 – 2743

 

Conference Papers

1. O. Karabasoglu and G. Kiziltas, “Design optimization of artificial magneto-dielectrics for RF applications,” 1st International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, October 22-26, Rome, Italy, 2007

 

2. S. Z. Nergiz and G. Kiziltas, “Dry Powder Deposition for Fabrication of Electromagnetic Devices Using Textured. Dielectric and Magnetic Ceramics,” Material Science and Technology Conference and Exhibition, Sept 16-10, 2007, Detroit, Michigan, USA, 2007

 

3. Y. E Kahlout and G. Kiziltas, “An Efficient Optimization Framework for Material and Conductor Designs of Antennas,” International Conference on Electromagnetics in Advanced Applications, September 14-17, Torino, Italy, 2007

 

4. Y. E Kahlout and G. Kiziltas, “Bayesian Trained Rational Functions for Electromagnetic Design Optimization”, IEEE AP-S International Symposium, June 10-15, 2007, Honolulu, HI, USA, 2007

 

5. J. Volakis and G. Kiziltas, “Novel Materials for RF Devices,” 2007 IEEE AP-S International Symposium, June 10-15, Honolulu, HI, USA, 2007

 

6. G. Kiziltas, “Topology optimization and fabrication of multi-material dielectrics for antenna performance improvements”, European Conference on Computational Mechanics, Lisbon, Portugal, 5-9 June, 2006

 

7. G. Kiziltas, “Design and Fabrication of Three Dimensional Dielectric and Magnetic
Composites for SATCOM Antenna Applications, 2006 Joint IEEE AP-S / URSI / AMEREM Symposium, July 9-14, Albuquerque, NM, USA, 2006

 

8. G. Kiziltas and Z. N. Wing, “Automated Fabrication of Three Dimensional Dielectric Composites for RF Applications”, Joint IEEE AP-S / URSI / AMEREM Symposium, July 9-14, 2006, Albuquerque, NM, USA, 2006

 

9. G. Kiziltas, “Concurrent Design of Conductor Shape and Artificial Material
Composites for RF Applications”, Joint IEEE AP-S / URSI / AMEREM Symposium, July 9-14, 2006, Albuquerque, NM, USA, 2006

 

10. G. Kiziltas and J. L. Volakis, “Topology optimization of a compact UHF spiral array embedded in a textured dielectric,” IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting, Washington, DC, July 3-8, 2005

 

11. S. Koulouridis, G. Kiziltas, D. Hansford, and J. L. Volakis, “Design of polymer-ceramic composites for conformal integrated antennas,” IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting, Washington, DC, July 3-8, 2005

 

12. Y. Zhou, G. Kiziltas, S. Koulouridis and J. L. Volakis, “A miniature four-arm antenna for tri-band GPS applications,” IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting, Washington, DC, July 3-8, 2005

 

13. G. Kiziltas, J. Volakis, Z. Wing and J. Halloran, “Topology optimization of a compact UHF spiral array embedded in a textured dielectric”, 6th World Congress on Structural and Multidisciplinary Optimization, Rio de Janeiro, Brazil, June 30-July3, 2005

 

14. S. C. Pillai, Z. Wing, D. Psychodakis, G. Kiziltas, B. Sui, W. Chappell, J. Volakis, and J. W. Halloran,  Antenna Miniaturization with Metamaterials (invited talk), 29th International

Conf. on Advanced Ceramics and Composites, Cocoa Beach, Florida, January 23-28, 2005

 

15. G. Kiziltas, J. L. Volakis, N. Kikuchi, and J. Halloran, “Design of a miniature broadband SATCOM antenna using textured dielectric loading via topology optimization,” IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting, Monterey, CA, June 20-26, 2004

 

16. G. Kiziltas and J. L. Volakis, “Automating the design of a band-pass spectral filter with frequency selective surfaces on inhomogeneous substrates,” International Symposium on Electromagnetic Theory, (Invited Paper), URSI EMT-S, Pisa, Italy, May 23-27, 2004

 

17. G. Kiziltas, J. L. Volakis, and N. Kikuchi, “Automated topology design for electromagnetic devices,” 8th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM, Columbus, OH, June 13-17, 2004

 

18. G. Kiziltas, D. Psychoudakis, J. L. Volakis and J. Halloran, “Miniature antenna designs on metamaterial substrates,” 3rd European Workshop on Conformal Antennas, (Invited Paper), Bonn, Germany, Oct. 22-23, 2003

 

19. J. Volakis and G. Kiziltas, “Miniature antenna designs on metamaterial substrates,” International Conference on Electromagnetics in Advanced Applications, Torino, Italy, Sept. 8-12, 2003 

 

20. G. Kiziltas, N. Kikuchi and J. Volakis, “Miniaturized broadband antenna design via SIMP,” 7th US National Congress on Computational Mechanics, Albuquerque, NM, Jul 27-31, 2003

 

21. G. Kiziltas, Y. Koh, J. Volakis, N. Kikuchi and J. Halloran, “Optimum design and fabrication of volumetric graded substrate for a broadband miniature antenna,” IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), Vol: 1, 2003, pp: 485-488

 

22. D. Psychoudakis, A. Knapp, G. Kiziltas, J. Volakis and J. Halloran, “Textured LTCC substrates for printed antenna miniaturization and bandwidth improvement,” IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), Vol: 3, 2003, pp:375-378

23. G. Kiziltas and J. L. Volakis, “Shape and material optimization for bandwidth improvement of printed antennas on high contrast substrates,” IEEE International Symposium on Electromagnetic Compatibility, Istanbul, Turkey, May 11-16, 2003

 

24. A. M. Knapp, Y. Koh, J. W. Halloran, G. Kiziltas, D. Psychoudakis, J.Volakis and N. Kikuchi, “Textured dielectric composites for antennas miniaturized with meta-materials,” 105th Annual Meeting & Exposition of The American Ceramic Society, Nashville, TN, April 2003

 

25. Y. Koh, J.W. Halloran, A. M. Knapp, J. Volakis, G. Kiziltas and D. Psychoudakis, “Textured dielectric meta-materials for miniaturized antennas: fabrication of dielectric LTCC-polymer by thermoplastic green machining,”105th Annual Meeting & Exposition of The American Ceramic Society, Nashville, TN, April 2003

 

26. G. Kiziltas, J. L. Volakis and N. Kikuchi, “Three-dimensional material optimization for printed antenna bandwidth enhancements,” The 19th Annual Review of Progress in Applied Computational Electromagnetics, Monterey, CA, USA, March 24-28, 2003

 

27. A. M. Knapp, Y. Koh, J. W. Halloran, G. Kiziltas, D. Psychoudakis, J.Volakis and N. Kikuchi “Coextruded dielectric composites for antennas miniaturized with meta-materials,” 104th Annual Meeting & Exposition of The American Ceramic Society, April 28-30, 2002, St. Louis, Missouri

 

28. G. Kiziltas, J. L. Volakis and N. Kikuchi, “Metamaterial design via the density method,” IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 2002, Vol: 1, pp: 748 -751

 

29. Z. Li, G. Kiziltas, J. Volakis and N. Kikuchi, “Material design optimization for printed antennas using the finite element – boundary integral method,” The 18th Annual Review of Progress in Applied Computational Electromagnetics, Monterey, CA, USA, March 18-22, 2002, (Best Paper Award)
 

30. G. Kiziltas, C. Yilmaz, J. L. Volakis, N. Kikuchi and J. Halloran, “Design of metamaterial textures for microwave applications,” IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 2002, Vol: 2 , pp: 388 -391

 

31. J. L. Volakis, Zhifang Li, Y. Erdemli and G. Kiziltas, “Antenna design using rigorous hybrid finite element computational toolsets, ” IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 2001, (Invited special session paper), Vol: 1, pp: 181

 

32. G. Kiziltas, H. Syed, Z. Li, J. Volakis and N. Kikuchi, “The homogenization method and its application to designing frequency selective structures,” Antennas and Propagation Society, International Symposium and USNC/URSI National Radio Science Meeting, Boston, MA, USA, July 8-13, 2001

 

Theses

G. Kiziltas, “Computer Aided Design of Friction Type Brakes and Clutches,” M.Sc. Thesis, Mechanical Engineering, Middle East Technical University, TURKEY, 1998

 

G. Kiziltas, “Dielectric Material Optimization of Filters and Antennas using SIMP,” Ph.D. Thesis, Mechanical Engineering, University of Michigan, Ann Arbor, May 2003