ELEKTRİK-ELEKTRONİK MÜHENDİSLİĞİ BÖLÜMÜ


Nevzat Yıldırım

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Tel No: 
+90 (312) 210-2322
E-posta: 
nyil metu.edu.tr
Eğitim: 

BSc : Electrical Engineering Department, Middle East Technical University, Ankara, Turkey, 1968

MSc : Electrical Engineering Department, Middle East Technical University, Ankara, Turkey, 1970

PhD : Electrical Engineering Department, Middle East Technical University, Ankara, Turkey, 1974

 

Araştırma Konuları: 
  • Microwave Circuit Theory, Electromagnetic Field Theory, Lumped and distributed Element Filter Theory with specialization in RF and Microwave Filters, Multiplexers, Coupling and Matching Structures.
  • Receiver-Transmitter System Design.

 

Projeler: 
  • John F. Kennedy Undergraduate Scholarship, EE Dept. Middle East Technical University, 1964-1968
  • Turkish Scientific and Technical Research Council Graduate Scholarship, EE Dept. Middle East Technical University, 1972-1974
  • Fulbright Post Doctoral Research Grant from Council for International Exchange of Scholars, for research at University of Michigan, 1979-1980
  • 1984 Science Promotion Award of M. N. Parlar Foundation for Research and Education
  • 1989 Science Promotion Award of M. N. Parlar Foundation for Research and Education

 

Yayınlar: 

Books:

1) N. Yildirim, A. F. Fer, "Microwave Techniques", Turkish Army War School Publications, 1977, Ankara.
2) N. Yildirim, "Electromagnetic Filelds and Waves", Turkish Army War School Publications, 1977, Ankara.
3) Filpro Manual: A textbook-like manual for the filter design software Filpro (Available in this web site)

 

Theses:

1) N. Yildirim,"Thermal and Electrothermal Instabilities in Semiconductor Films", Thesis for promotion to Associate Professorship, EE Dept., Middle East Technical University, Ankara, 1982.
2) N. Yildirim,"Unified Analysis of Coupled Multiwire Nonuniform Transmission Lines", Ph. D. Thesis, EE Dept, Middle East Technical University, Ankara, 1975.
3) N. Yildirim,"Analytical Properties of Chain Parameters of Nonuniform Transmission Lines", M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, 1972.

 

Articles in International Periodicals:

1)      N. Yildirim, O. Sen, Y. Sen, M. Karaaslan, D. Pelz, "A Revision of Cascade Synthesis Theory Covering Cross-coupled Filters", IEEE, Microwave Theory and Techniques, Vol.50, No. 6, pp.1536-1543, June 2002.

2) N. Yildirim, O. A. Sen, Y. Sen, "Synthesis of Cascaded N-tuplet Filters", Microwave Review-2002, pp. 131-140, Nis, Yugoslavia, 2002.
3) N. Yildirim, M. Karaaslan, Y. Sen, O. A. Sen, “Cascaded Triplet and Quadruplet Filter Design using Cascade Synthesis Approach”, pp. 95-104, Facta Universitas, Yugoslavia, 1999.
4) M. Shaw, N. Yildirim,"Thermal and Electrothermal Instabilities", Advances in Electronics and Electron Physics, Vol. 60, pp. 307-385, Academic Press, 1983.
5) N. Yildirim, K. F. Subhani, M. Shaw,"An Electrothermal Model for Breakdown, Swittching and Memory Efeects in thin Amorphous Chalcogenide Films", Journal of Electrostatics,Vol. 12, pp. 363-368, 1982.
6) N. Yildirim, C. Toker,"Chain Parameters of regular nonuniform transmission lines", Proc. IEEE, V. 119, No. 10, pp. 1449-1451, Oct. 1972.
7) N. Yildirim, C. Toker,"State Space Formulation for Chain Matrix Parameters of nonuniform transmission lines", IEE Electronic Letters, V.6, No. 13, pp. 422-424, June 1970.
8) N. Yildirim, C. Toker,"On the Chain Parameter Interrelationships of nonuniform transmission lines", Proc. IEEE, V.58, No. 5, pp. 828-829, May, 1970.

 

Presentations in international conferences:

  • N. Yildirim, "Waveguide Filters with ridged and unequal width Resonators" IEEE, MTTS-2005 Symposium Digest, pp. ??, vol. ?, June 2005, Long Beach, California, USA (to be presented).
  • Ozlem Şen., Yakup Şen. Nevzat Yildirim., “Novel Methods for Cross-Coupled Filter Synthesis”, International Workshop on Microwave Filters, 13 - 15 September 2004, CNES, Toulouse, FRANCE.
  • N. Yildirim, "Cascaded N-tuplet Filter Design using Ladder Synthesis and Matrix Transformations”, MTTS-2004, International Microwave Symposium Workshop “Microwave Frontiers: Comparison of Modern Filter Design Techniques”,  Forth Worth, June 2004.
  • N. Yildirim, O. A. Sen, Y. Sen, "Synthesis of Cascaded N-tuplet Filters", Invited paper, TELSIKS-2001, pp. 153-162, Nis, Yugoslavia.
  • N. Yildirim, O. A. Sen, Y. Sen, "Synthesis of Cascaded Quadruplet Filters Involving Complex Transmission Zeros”, MTTS-2000 Symposium Digest, pp. 1177-1180,  Boston, June 2000.
  • N. Yildirim, M. Karaaslan, Y. Sen, O. A. Sen, “Cascaded Triplet and Quadruplet Filter Design using Cascade Synthesis Approach”, TELSIKS’99, Nis, Yugoslavia, 13-15 Oct. 1999.
  • N. Yildirim, M. Karaaslan, Y. Sen, O. Sen, "Cascaded Triplet and Cascaded Quadruplet Filter Design using Cascade Synthesis Approach," IEEE, MTTS-1999 Symposium Digest, pp. 903-906, vol. 3, June 1999, Anaheim, USA.
  • N. Yildirim, M. Karaslan, "FILPRO: A State of the Art Filter Design Software- Cross Coupled Evanescent Filters as Example," Digest, IEEE MTT-S International Microwave Symposium Workshop on State of the Art Filter Design Using EM and Circuit Simulation Techniques, Denver, USA, June 1997.
  • Y. Sen, O. Apaydin, N. Yildirim, "MIMIC Filter Design with Negative Resistance," IEEE-MELECON-96, 8. Mediterranean Electrotechnical Conference,Bari, Italy, May 13-16, 1996.
  • U. Koyaz, N. Yildirim, "Design of Diplexers with Adjustable Cross-over attenuation,"IEEE-MELECON-94,6. Mediterranean Electrotechnical Conference, Antalya, Turkey, 1994.
  • O. Apaydin, N. Yildirim, "Novel Methods for Synthesis of Diplexers with Adjustable Cross-over attenuation,"IEEE-MELECON-94, 6. Mediterranean Electrotechnical Conference, Antalya, Turkey, 1994.
  • U. Koyaz, Y. Sen, N. Yildirim, "Design of Lumped and Distributed Element Filters in Transformed Frequency Domain by Half Network Synthesis Techniques," 4. National Technical Congress on Electrical Engineering,pp. 631-635, Ankara, Turkey, 1991.
  • Y. Sen, U. Koyaz, N. Yildirim, "A Software for Design of Lumped and Distributed Element Filters in Transformed Frequency Domain,"3. Turkish National Congress on Electrical Engineering,pp. 508-511, Ankara, 1989.
  • Y. Sen, T. Akdeniz, N. Yildirim,"Calculation of Capacitance Matrix of Asymmetric Parallel Coupled Lines,"3. Turkish National Congress on Electrical Engineering,pp. 307-310, Ankara, 1989.
  • A. Ucar, N. Yildirim,"Realization Problems of Open Circuited Parallel Coupled Line Filters," 30. Anniversary Symposium of EE Dept. of Middle East Technical University,pp. 312-315, Ankara, 1989.
  • K. Caglar, N. Yildirim,"Series Capacitor Realization Problems in Suspended Stripline bandpass filters," 30. Anniversary Symposium of EE Dept. of Middle East Technical University,pp.309-311, Ankara, 1989.
  • A. Aslan, N. Yildirim,"Design and Realization of a Stripline Bandpass Filter Using Sine Plane Approach," 30. Anniversary Symposium of EE Dept. of Middle East Technical University,pp. 305-308, Ankara, 1989.
  • H. Masaracioglu, N. Yildirim,"A General Analysis Technique for Various Balun Types," 30. Anniversary Symposium of EE Dept. of Middle East Technical University,pp. 301-304, Ankara, 1989.
  • Y. Sen, U. Koyaz, N. Yildirim,"Synthesis of Lumped and Distributed Element Filters Using Orchard's Iterated Analysis Technique," 30. Anniversary Symposium of EE Dept. of Middle East Technical University,pp. 297-300, Ankara, 1989.
  • U. Koyaz, N. Yildirim,"Circuit Models of Asymmetric Parallel Coupled Lines," 30. Anniversary Symposium of EE Dept. of Middle East Technical University,pp. 293-296, Ankara, 1989.
  • U. Koyaz, N. Yildirim,"Design of Asymmetric Microstrip Parallel Coupled Line Directional Couplers," 2. Turkish National Congress on Electrical Engineering,Middle East Technical University,pp. 197-201, Ankara, 1987.
  • K. Caglar, N. Yildirim,"Design and Realization of Suspended Stripline Lowpass Filters," 2. Turkish National Congress on Electrical Engineering,Middle East Technical University,pp. 225-228, Ankara, 1987.
  • K. Caglar, N. Yildirim,"Calculation of Characteristic Impedances of Suspended Stripline Structures," 2. Turkish National Congress on Electrical Engineering,Middle East Technical University,pp. 229-232, Ankara, 1987.
  • A. Yazici, N. Yildirim,"Calculation of Characteristic Impedances of Parallel Coupled Suspended Stripline Structures," 2. Turkish National Congress on Electrical Engineering,Middle East Technical University,pp. 233-237, Ankara, 1987.
  • A. Aksen, N. Yildirim,"Design of Broadband Branch Line Directional Couplers by Matching and Optimization," 1. Turkish National Congress on Electrical Engineering,pp.529-534, Adana, Turkey, 1985.
  • A. Aksen, N. Yildirim,"Broadbanding Branchline Directional Couplers by Matching and Optimization," IEEE, MELECON-85, Mediterranean Electrotechnical Conference, Madrid 1985.
  • N. Yildirim,"Synthesis of Stepped Impedance Transformers and Stepped Impedance Asymmetric Directional Couplerswith Large Numbers of Sections," Antenna-Propagation- Microwave Symposium,Middle East Technical University,pp. 310-323, Ankara, 1983.
  • N. Yildirim,"Numerical Calculations on Negative Differential Resistance Effects in Semiconductors," Antenna-Propagation- Microwave Symposium,Middle East Technical University,pp. 324-337, Ankara, 1983.
  • N. Yildirim, K. F. Subhani, M. Shaw,"An Electrothermal Model for Breakdown and Memory Effects in thin Amorphous Chalcogenide Films", 7. International Conference on Conduction and Breakdown in Dielectric Liquids,Berlin, W. Germany, july, 1981.
  • N. Yildirim,"Accurate Solution of Stepped Impedance Transformers and Stepped Impedance Asymmetric Directional Couplerswith Large Numbers of Sections," 23. Midwest Symposium on Circuits and Systems, University of Toledo, Ohio, Aug. 1980.
  • N. Yildirim, M. Shaw"Analysis of Switching Phenomena in Formed Chalcogenide Films," 4. Workshop on Electrothermal Switching Devices, University of Brunswick, New Jersey, July, 1980.
  • N. Yildirim, C. Toker"Unified Analysis of n-wire Nonuniform Transmission Lines by State Space Techniques,"1973 European Microwave Conference, Brussels, Belgium, Sept. 1973.

 

Supervised Theses:

  • Irfan Yildiz, "Design and Realization of Stripline Switched Multiplexer", M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 2001.
  • A. Selturk, "Design and Realization of Clas-E, VHF Power Amplifier", M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 2001.
  • O. Sen, "Synthesis of cross coupled filters using cascade synthesis approach", Ph. D. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 2000.
  • M. Akkul, " Microwave Switched Multiplexer Design ," Ph. D. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1999.
  • Y. Sen, " Novel Techniques on Synthesis of Miniaturized Cross Coupled, Active and Passive Microwave Filters ," Ph. D. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1997.
  • Y. Aydin, "Design and Simulation of MMIC Instantaneous Frequency Measurement Devices," M. Sc Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1999.
  • A. Altun, "Design and Construction of High Power Transformers, Combiners and Parallel Combined HF Power Amplifiers ," M. Sc Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1998.
  • M. Karaaslan, "Network Transformations for Lumped and Distributed Element Filters," M. Sc Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1994.
  • U. Koyaz, "Synthesis of Lumped and Distributed Element Filters and Diplexers," Ph. D. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1994.
  • O. Apaydin, "Novel Methods for Synthesis of Diplexers with Adjustable Cross-over Attenuation," M. Sc Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1994.
  • B. Turkoglu, "A Computer aid for Network Transformations in Lumped and Distributed Element Filters," M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1992.
  • I. Tekin, "Design and Realization of Narrowband Bandpass Filters Using Stripline-like Structures," M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1992.
  • M. Akkul, "Design and Realization of Microwave Bandpass Filters in Suspended Stripline Structures," M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1991.
  • R. Uzun, "Computer Aided Design of Lumped and Distributed Element Filters," M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1990.
  • Y. Sen, "Direct Design of Lumped and Distributed Element Filters Using Transformed Variable Technique," M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1989.
  • H. Masaracioglu, "Design and Analysis of Baluns and Transmission line Transformers with Coupled Line Approach," M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1989.
  • A. Dengizek, "Design and Realization of Microwave Bandstop Filters," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1989.
  • A. Aslan, "Design and Realization of Microwave Bandpass Filters Using Sine Plane Approach," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1989.
  • B. Erturkuner, "Design and Construction of VHF Power Transformers and Amplifiers," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1989.
  • A. Ucar, "Design and Realization of Parallel Coupled Line Microwave Bandpass Filters," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1989.
  • K. Caglar, "Microwave Lowpass Filter Design Using Suspended Stripline Techniques," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1988.
  • A. Yazici, "Spectral Domain Analysis of Coupled Suspended Striplines," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1988.
  • A. Koksal, "Computer Aided Design of Lumped and Distributed Matching Networks," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1987.
  • U. Koyaz, "Design and Analysis of Asymmetric Coupled Lines," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1986.
  • A. Aksen, "Computer Aided Design of Broadband Branch Line Couplers by Matching and Optimization," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1985.
  • F. Cogun, "Design of Stepped Impedance Transformers withLarge Numbers of Sections," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1984.
  • A. Celikel, "Design and realization of Strip line Magic Tee," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1978.
  • B. Subasi, "Design and Realization of Microstrip Quarter Wavelength Transformers," M. Sc. Thesis, EE Dept., Middle East Technical University, Ankara, Turkey, 1975.
  • E. Akdolun"Design and Realization of Nonuniform Parallel Coupled Line Directional Couplers," M. Sc. Thesis, EE Dept. Middle East Technical University, Ankara, Turkey, 1973.