Title: Prof. Dr.Department: Electrical & Electronics Engineering DepartmentPosition: Part Time Faculty MemberEmail: arif.ergin@yeditepe.edu.trTelephone: 0 216 578 19 42Office: A-608Time: Part TimeAkademikResumeResearch Interests: Electromagnetics Fields Computational Sciences Radar Cross Section and Remote Sensing Electromagnetic Measurement Techniques and Engineering Acoustic Biography: B.Sc.: Electrical and Electronics Engineering, Middle East Technical University, 1992. M.Sc.: Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, 1995. Ph.D.: Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, 2000. Projects (Selected Ones): Uzun-Ufuk Araştırma Desteği Projesi, TÜBİTAK-MAM-BTAE (2001-2003) Yüksek gerilim güç trafolarının etrafındaki manyetik alanların ölçülmesi, ALSTOM A.Ş.(2001-2002) MASKE: F-16 uçaklarının 370G yakıt tankının radar kesit alanının ölçülmesi ve benzetim ortamında hesaplanması, Türk Uçak Sanayi A.Ş. (TUSAŞ) (2002-2003) Güdümlü Mermi Radar Kesit Alanı Ölçüm İşi, Dz.K.K. Araştırma Merkezi Komutanlığı (2005) Sınır Gözetleme ve Kontrol Sistemi C4ISR Modelleme ve Simülasyonu, TÜBİTAK-MAM-BTAE (2004-2005) Görünmezlik Teknolojileri – Malzeme (MASKE-II) Projesi, TÜBİTAK 1007 projesi (2008-2011) MİLGEM için RKA, soğurganlık ve yansıtıcılık ölçüm düzeneklerinin kurulması, standartların geliştirilmesi ve ölçümlerin yapılması işi, STM A.Ş (2008-2010) MİLGEM burun topu kupolası geliştirilmesi ve RKA değerinin ölçülmesi, Sirena Marin A.Ş. (2010) SAT botu parçalarının geçirgenlik/yansıtıcılık ölçümleri, Yonca-Onuk Tersanesi (2010) İltek rüzgar enerji santrali projelerinin hava alanı radarlarına etkilerinin ön değerlendirmelerinin yapılması, Agena BST (2010) Elektromanyetik tabanlı Sentetik Açıklıklı Radar (EM-SAR) Simülasyonu Geliştirilmesi, Agena BST (2011) Otomatik Araç Sınıflandırma (OtAS) Sistemi Gelştirilmesi, Agena BST (2012) Yüzer Decoy Projesi, TÜBİTAK-Malzeme Enstitüsü (2012-2013) FX / TX Projesi, Aviyonik Elektronik (Görünmezlik), TUSAŞ (2012-2013) AKYA (Milli Torpido) Projesi, Manyetik SensörTasarım, Agena (2014) Courses GivenFundamentals of Electromagnetic FieldsElectromagnetic Waves and Transmission Lines PublicationsJournals: A.A. Ergin ve E. Michielssen, “Incorporation of a multilevel matrix decomposition algorithm in the finite element-boundary integral analysis of scattering from 2D coated conducting bodies,” Microwave and Optical Technology Letters, 12(2), 64-68 (1996). A.A. Ergin, B. Shanker ve E. Michielssen, “Fast evaluation of three-dimensional transient wave fields using diagonal translation operators,” Journal of Computational Physics, 146(1), 157-180 (1998). K. Aygün, S.E. Fisher, A.A. Ergin, B. Shanker ve E. Michielssen, “Transient analysis of multielement wire antennas mounted on arbitrarily shaped perfectly conducting bodies,” Radio Science, 34(4), 781-796 (1999). A.A. Ergin, B. Shanker ve E. Michielssen, “The plane wave time domain algorithm for the fast analysis of transient wave phenomena,” IEEE Antennas and Propagation Magazine, 41(4), 39-52 (1999). A.A. Ergin, B. Shanker ve E. Michielssen, “Analysis of transient wave scattering from rigid bodies using a Burton-Miller approach,” the Journal of the Acoustical Society of America, 106(5), 2396-2404 (1999). A.A. Ergin, B. Shanker ve E. Michielssen, “Fast transient analysis of acoustic wave scattering from rigid bodies using two-level plane wave time domain algorithm,” the Journal of Acoustical Society of America, 106(5), 2405 2416 (1999). Mingyu Lu, Jianguo Wang, A. Arif Ergin ve Eric Michielssen, “Fast evaluation of two-dimensional transient wave fields,” Journal of Computational Physics, 158(2), 161-185 (2000). A. A. Ergin, B. Shanker ve E. Michielssen, “Fast analysis of transient acoustic wave scattering from rigid bodies using multilevel plane wave time domain algorithm,” the Journal of the Acoustical Society of America, 107(3), 1168-1178 (2000). B. Shanker, A.A. Ergin, Kemal Aygün ve E. Michielssen, “Analysis of transient electromagnetic scattering phenomena using a two-level plane wave time domain algorithm,” IEEE Transactions on Antennas and Propagation, 48(4), 510-523 (2000). (Düzeltme: IEEE Transactions on Antennas and Propagation 49(8), 1243 (2001)) B. Shanker, A.A. Ergin, Kemal Aygün ve E. Michielssen, “Analysis of transient electromagnetic scattering from closed surfaces using a combined field integral equation” IEEE Transactions on Antennas and Propagation, 48(7), 1064-1074 (2000). N.T. Gres, A.A. Ergin, E. Michielssen, B. Shanker, “Volume-integral-equation-based analysis of transient electromagnetic scattering from three-dimensional inhomogeneous dielectric objects,” Radio Science, 36(3), 379-386 (2001). Kemal Aygün, B. Shanker, A. A. Ergin, E. Michielssen, “A two-level plane wave time domain algorithm for fast analysis of EMC/EMI problems,” IEEE Transactions on Electromagnetic Compatibility, 44(1), 152-164 (2002). Balasubramaniam Shanker, Arif A. Ergin, Eric Michielssen, “Plane-wave-time-domain-enhanced marching-on-in-time scheme for analyzing scattering from homogeneous dielectric structures,” Journal of the Optical Society of America A, 19(4), 716-726 (2002). Dan Jiao, A.A. Ergin, B. Shanker, E. Michielssen, Jian-Ming Jin, “A fast higher-order time-domain finite element-boundary integral method for 3-D electromagnetic scattering analysis,” IEEE Transactions on Antennas and Propagation, 50(9), 1192-1202 (2002). B. Shanker, A.A. Ergin, Mingyu Lu, E. Michielssen, “Fast analysis of transient electromagnetic scattering phenomena using the multilevel plane wave time domain algorithm,” IEEE Transactions on Antennas and Propagation, 51(3), 628-641 (2003). M. Lu, M. Lv, A.A. Ergin, B. Shanker, E. Michielssen, “Multilevel plane wave time domain-based global boundary kernels for two-dimensional finite difference time domain simulations,” Radio Science, 39, RS4007, doi:10.1029/2003RS002928 (2004). D. Bölükbaş ve A.A. Ergin, “A Radon transform interpretation of the physical optics integral,” Microwave and Optical Technology Letters, 44(3), 284-288 (2005). S. Aksoy, M. Antyufeyeva, E. Başaran, A.A. Ergin, O.A. Tretyakov, “Time-domain cavity oscillations supported by a temporally dispersive dielectric,” IEEE Transactions on Microwave Theory and Techniques. 53(8), 2465-2471 (2005). B. Shanker, Mingyu Lu, A.A. Ergin, E. Michielssen, “Plane-wave time-domain accelerated radiation boundary kernels for FDTD analysis of 3-D electromagnetic phenomena,” IEEE Transactions on Antennas and Propagation, 53(11), 3704-3716 (2005). Abdulkadir C. Yücel, A. Arif Ergin, “Exact evaluation of retarded-time potential integrals for the RWG bases,” IEEE Transactions on Antennas and Propagation, 54(5), 1496-1502 (2006). Deniz Bölükbaş, A. Arif Ergin, “Improvement of the scattering center extraction by using the modified approximate prolate series Interpolants,” Microwave and Optical Technology Letters, 49(7), 1623-1628, July 2007. H. Arda Ülkü, A. Arif Ergin, “Analytical Evaluation of Transient Magnetic Fields Due to RWG Current Bases,” IEEE Transactions on Antennas and Propagation, 55(12), 3565-3575, 2007. Hüseyin Avni Serim, A. Arif Ergin, “Computation of the Physical Optics Integral on NURBS Surfaces Using a Radon Transform Interpretation,” IEEE Antennas and Wireless Propagation Letters, vol. 7, pp. 70-73, 2008. Şahin Özsoy, A. Arif Ergin, “Pencil Back-projection Method for SAR Imaging,” IEEE Transactions on Image Processing, vol. 18, no. 3, pp. 573-581, March 2009. Volkan Kumbasar, Oğuz Kucur, A. Arif Ergin, Ertan Öztürk, “Optimization of wavelet based OFDM for multipath powerline channel by genetic algorithm,” Wireless Communications and Mobile Computing, vol. 9, no. 9, pp. 1243–1250, September 2009. (DOI: 10.1002/wcm.694) Fatih Dikmen, A.Arif Ergin, A. Levent Sevgili, Bilgin Terzi, “Implementation of an efficient shooting and bouncing rays scheme,” Microwave And Optical Technology Letters, Vol: 52, No: 11, pp: 2409-2413, 2010. (DOI: 10.1002/mop.25492) Erratum: vol. 53, No: 12, pp. 3003, 2014. H. Arda Ülkü, A. Arif Ergin, “On the Singularity of the Closed-Form Expression of the Magnetic Field in Time Domain,” IEEE Transactions on Antennas and Propagation, vol. 59, no. 2, pp. 691-694, 2011. H. Arda Ülkü, A. Arif Ergin, F. Dikmen, “On the Evaluation of Retarded-Time Potentials for SWG Bases,” IEEE Antennas and Wireless Propagation Letters, vol. 10, pp. 187 – 190, 2011. H. Arda Ülkü, A. Arif Ergin, “Application of Analytical Retarded-Time Potential Integrals to the Solution of Combined Field Integral Equation,” IEEE Transactions on Antennas and Propagation, vol. 59, no. 11, pp. 4123 – 4131, Nov. 2011. Sena Esen Bayer Keskin, Ahmet Arif Ergin, “Continuity of currents across neighboring cells in PMM analysis of thin-wire grids,” Turkish Journal Of Electrical Engineering And Computer Sciences, vol. 22, no. 3, pp. 582-587, 2014. DOI:10.3906/elk-1209-17 Okyanus Tulgar, A. Arif Ergin, “Matrix Pencil Method for Chirp ISAR Imaging with Near-Field Measurements,” Microwave and Optical Technology Letters, vol. 57, no. 5, pp. 1237 – 1242, May 2015. DOI: 10.1002/mop.29064 Okyanus Tulgar, A. Arif Ergin, “Improved Pencil Back-Projection Method with Image Segmentation for Far-Field/Near-Field SAR Imaging and RCS Extraction,” IEEE Transactions on Antennas and Propagation, vol. , no. , pp. – , 2015. DOI: 10.1109/TAP.2015.2416757 Soner Karaca, A. Arif Ergin, “Closed-Form Time Domain PO Expressions of the Electric Field Scattered from PEC Objects Illuminated by an Electric Dipole,” IEEE Transactions on Antennas and Propagation, vol. 63, no. 10, pp. 4477 – 4485, October 2015. Okyanus Tulgar, A. Arif Ergin, “Matrix Pencil Method for Estimating Radar Cross Section of Moving Targets with Near-Field Measurements,” Microwave and Optical Technology Letters, vol. 58, no. 2, pp. 471 – 476, February 2016. Hakkı Nazlı, A. Arif Ergin, “Application of the Generalized Pencil of Function Method to Time Reversal Imaging,” IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 3113 – 3117, 2017. DOI: 10.1109/LAWP.2017.2763959 Book Chapters: A. A. Ergin, B. Shanker ve E. Michielssen, “Plane-Wave Time-Domain Algorithms” Fast and Efficient Algorithms in Computational Electromagnetics, ed. W.C.Chew, J.M. Jin, E. Michielssen and J. Song, 815-858, Artech House, Boston, 2001. B. Shanker, A. A. Ergin, K. Aygün ve E. Michielssen, “Plane-Wave Time-Domain Algorithm Enhanced Time-Domain Integral Equation Solvers” Fast and Efficient Algorithms in Computational Electromagnetics, ed. W.C.Chew, J.M. Jin, E. Michielssen and J. Song, 859-892, Artech House, Boston, 2001. E. Michielssen, B. Shanker, K. Aygün, M. Lu, A. Ergin, “Plane-Wave Time-Domain Algorithms and Fast Time-Domain Integral-Equation Solvers,” The Review of Radio Science 1999-2002, ed. W. Ross Stone, 181-200, IEEE Press, Piscataway, NJ, 2002. Conference Papers: A.A. Ergin ve Eric Michielssen, “A compression algorithm for the marching-on-in-time solution of scattering from two-dimensional conducting strips,” Proceedings of Progress in Electromagnetics Research Symposium, pp.50, Seattle, WA, Temmuz 1995. E. Michielssen, D.S. Weile, K. Aygün ve A. Ergin, “Electromagnetic component design using genetic algorithms,” Proceedings of the NSF Conference on Design and Manufacturing, Seattle, WA, Ocak 1997. K. Aygün, A.A. Ergin, B. Shanker, S.E. Fisher ve E. Michielssen, “Transient analysis of thin wire antennas mounted on three-dimensional perfectly conducting bodies,” Proceedings of the 14th Annual Review of Progress in Applied Computational Electromagnetics, vol. 2, pp. 838-844, Monterey, CA, 16-20 Mart 1998. A.A. Ergin, B. Shanker, K. Aygün ve E. Michielssen, “Transient analysis of acoustic scattering using marching-on-in-time with plane wave time domain algorithm,” Proceedings of the 14th Annual Review of Progress in Applied Computational Electromagnetics, vol. 2, pp. 866-872, Monterey, CA, 16-20 Mart 1998. B. Shanker, A.A. Ergin, K. Aygün ve E. Michielssen, “A plane wave time domain algorithm for the fast analysis of transient electromagnetic scattering phenomena,” Proceedings of the 14th Annual Review of Progress in Applied Computational Electromagnetics, vol. 2, pp. 873-878, Monterey, CA, 16-20 Mart 1998. E. Michielssen, W.C. Chew, A. Ergin, V. Jandhyala, B. Shanker ve J.M. Song, “Recent developments in fast-multipole based frequency and time domain solvers,” Proceedings of Mathematical Methods in Electromagnetics Theory 1998 (MMET '98), pp. 92-98, Karkhov, Ukrayna, 2-5 Haziran 1998. (davetli tebliğ) W.C. Chew, A. Ergin, V. Jandhyala, J. Jin, C.C. Lu, E. Michielssen, B. Shanker, X. Sheng, J.M. Song ve J.S. Zhao, “Fast electromagnetic scattering algorithms using multilevel and hybrid techniques,” SIAM Proceedings on Mathematical and Numerical Aspects of Wave Propagation, pp. 118-122, 1-4 Haziran 1998. K. Aygün, S.E. Fisher, A. Ergin, B. Shanker ve E. Michielssen, “Time domain integral equation-finite difference modeling of complex antennas and feed networks,” Proceedings of USNC/URSI National Radio Science Meeting, pp. 305, Atlanta, GA, 21-26 Haziran 1998. E. Michielssen, A.A. Ergin ve B. Shanker, “Diagonal translation operators for transient wave fields,” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 2, pp. 940-943, Atlanta, GA, 21-26 Haziran 1998. A.A. Ergin, B. Shanker ve E. Michielssen, “Computational complexity and implementation of two-level plane wave time domain algorithm for scalar wave equation” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 2, pp. 944-947, Atlanta, GA, 21-26 Haziran 1998. B. Shanker, A.A. Ergin ve E. Michielssen, “Computation of transient scattering from electrically large structures using the plane wave time domain algorithm” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 2, pp. 948-951, Atlanta, GA, 21-26 Haziran 1998. M. Lu, J. Wang, A. A. Ergin ve E. Michielssen, “A Diagonal Translation Operator for the Fast Evaluation of Two-Dimensional Transient Wave Fields,” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 2, pp. 1338-1341, Orlando, FL, 11-16 Temmuz 1999. K. Aygün, B. Shanker, A. A. Ergin ve E. Michielssen, “A Fast Time Domain Integral Equation Technique for Analyzing EMC/EMI Problems,” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 2, pp. 1366-1369, Orlando, FL, 11-16 Temmuz 1999. B. Shanker, A. A. Ergin ve E. Michielssen, “A Multilevel Plane Wave Time Domain Algorithm for the Fast Analysis of Transient Scattering Phenomena,” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 2, pp. 1342-1345, Orlando, FL, 11-16 Temmuz 1999. B. Shanker, A. A. Ergin, K. Aygün ve E. Michielssen, “Analysis of Transient Electromagnetic Scattering from Electrically Large Structures Using the Plane Wave Time Domain Algorithm,” Progress in Electromagnetic Research Symposium, Taipei, Taiwan, 22-26 Mart 1999. B. Shanker, A. A. Ergin ve E. Michielssen, “Fast analysis of transient scattering from dielectric bodies using the multilevel plane wave time domain algorithm,” Proceedings of the XVIth URSI-General Assembly, pp. 112, Toronto, Kanada, 13-21 Ağustos 1999. (davetli tebliğ) B. Shanker, A. A. Ergin ve E. Michielssen, “Fast global boundary conditions for 3D FDTD simulations using the plane wave time domain algorithm,” Proceedings of the XXVIth URSI-General Assembly, pp. 164, Toronto, Kanada, 13-21 Ağustos 1999. (davetli tebliğ) W.C. Chew, J.M. Song, B. Shanker, S. Velamparambil, J.S. Zhao, A. Ergin, B. Hu, E. Michielssen ve J.M. Jin, “Fast solvers for integral equations,” Proceedings of the XXVIth URSI-General Assembly, pp. 154, Toronto, Kanada, 13-21 Ağustos 1999. K. Aygün, B. Shanker, A. A. Ergin ve E. Michielssen, “Analysis of Shielding Enclosures Using the Multilevel Plane Wave Time Domain Algorithm,” Proceedings of IEEE 1999 International Symposium on Electromagnetic Compatibility, pp. 690-693, Seattle, WA, 2-6 Ağustos 1999. A.A. Ergin, B. Shanker ve E. Michielssen, “Acceleration of integral equation based transient analysis of acoustic scattering phenomena using the plane wave time domain algorithm,” 138th Meeting of the Acoustical Society of America, Columbus, OH, 1-5 Kasım 1999. (Metin: the Journal of the Acoustical Society of America, vol. 106, no. 4, pt. 2, pp. 2195, Ekim 1999) A.A. Ergin, B. Shanker ve E. Michielssen, “Exact global boundary condition with reduced computational complexity for grid truncation in acoustic finite difference time domain simulations,” 138th Meeting of the Acoustical Society of America, Columbus, OH, 1-5 Mart 1999. (Metin: the Journal of the Acoustical Society of America, vol. 106, no. 4, pt. 2, pp. 2195, Ekim 1999) A. Ergin, “Plane wave time domain algorithms for the fast analysis of electromagnetic transients,” Fall 1999 Communications, Electromagnetics, Propagation, & Signal Processing (CEPS) Workshop, Urbana, IL, 7-8 Ekim 1999. B. Shanker, A.A. Ergin ve E. Michielssen, “Efficient analysis of transient electromagnetic scattering from random rough surfaces,” Progress in Electromagnetics Research Symposium (PIERS), Cambridge, MA, 5-14 Temmuz 2000. M. Lu, B. Shanker, A. A. Ergin, and E. Michielssen, “Novel 2D transient EFIE, MFIE, and CFIE solvers based on the multilevel plane wave time domain algorithm,” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 2, pp. 737-740, Salt Lake City, UT, 16-21 Temmuz 2000. Daniel S. Weile, A. Arif Ergin, Balasubramaniam Shanker, and Eric Michielssen, “An accurate discretization scheme for the numerical solution of time domain integral equations,” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 2, pp. 741-744, Salt Lake City, UT, 16-21 Temmuz 2000. Noel T. Gres, Balasubramaniam Shanker, A. Arif Ergin, and Eric Michielssen, “Fast transient analysis of electromagnetic scattering from three-dimensional dielectric inhomogeneities using a volume integral equation,” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 2, pp. 745-748, Salt Lake City, UT, 16-21 Temmuz 2000. A. Arif Ergin, Balasubramaniam Shanker, and Eric Michielssen, “Accuracy and efficiency of PWTD enhanced exact radiation boundary conditions in FDTD simulations,” Proceedings of IEEE Antennas and Propagation Society International Symposium, vol. 3, pp. 1354-1357, Salt Lake City, UT, 16-21 Temmuz 2000. M. Lu, A. A. Ergin, and E. Michielssen, “Fast evaluation of transient fields in the presence of two half spaces using a plane wave time domain algorithm,” Proceedings of URSI National Radio Science Meeting, pp. 166, Salt Lake City, UT, 16-21 Temmuz 2000. K. Yeğin, B. Shanker, A. Ergin, and E. Michielssen, “Fast FDTD boundary kernels for dissipative media,” URSI Commission B 2001 International Symposium on Electromagnetic Theory, Victoria, Canada, 13-17 Mayıs 2001. Erkul Başaran, Serkan Aksoy, A. Arif Ergin, “The Investigation Of Source Location Effect for Resonant Modes Of A Cubic Cavity”, 3rd International Conference On Mathematical & Computational Applications, 41-47, Selçuk University, Konya, 4-6 Eylül 2002. Soner KARACA, Deniz BÖLÜKBAŞ, A. Arif ERGİN, “Computing The Radiation Pattern Of An Antenna Mounted On A Complex Structure By Using Accelerated Physical Optics Method,” Proceedings of USNC/URSI National Radio Science Meeting, pp. 131, Monterey, CA, 20-26 Haziran 2004. Abdulkadir C. Yücel, A. Arif ERGİN, “Analytical Evaluation of Retarded-Time Potentials of the RWG Bases,” in Proceedings of IVth International Workshop on Electromagnetic Wave Scattering, pp. 7.13-7.18, Gebze, Kocaeli, TURKEY, September 18-22, 2006. A. Arif ERGİN, “Some of the Microwave Studies in Gebze Institute of Technology,” in Proceedings of IVth International Workshop on Electromagnetic Wave Scattering, pp. 10.19-10.24, Gebze, Kocaeli, TURKEY, September 18-22, 2006. Erkul Başaran, A. Arif ERGİN, “Computation of Surface Wave RCS Using FDTD,” in Proceedings of IVth International Workshop on Electromagnetic Wave Scattering, pp. 11.3-11.6, Gebze, Kocaeli, TURKEY, September 18-22, 2006. Sena Esen Bayer, A. Arif ERGİN, “A Stable Marching-on-in-Time Scheme for Wire Scatterers Using Newmark-Beta Formulation,” in Proceedings of IVth International Workshop on Electromagnetic Wave Scattering, pp. 11.7-11.12, Gebze, Kocaeli, TURKEY, September 18-22, 2006. Deniz Bölükbaş, A. Arif ERGİN, “Improvement of ISAR Image Construction Using Modified Approximate Prolate Series Interpolants,” in Proceedings of IVth International Workshop on Electromagnetic Wave Scattering, pp. 11.31-11.36, Gebze, Kocaeli, TURKEY, September 18-22, 2006. H. Arda Ülkü, A. Arif Ergin, “Application of Analytical Expressions of Transient Potentials to the MOT Solution of Integral Equations,” Proceedings of IEEE Antennas and Propagation Society International Symposium (AP-S 2008), pp:1 – 4, San Diego, USA, 5-11 July 2008. (Digital Object Identifier 10.1109/APS.2008.4619359) H. Avni Serim, H. Arda Ülkü, Soner Karaca, Hilmi Öztürk, and A. Arif Ergin, “Geometric Evaluation of Physical Optics Integrals Using A Time-Domain Approach”, Proceedings of 2008 USNC/URSI National Radio Science Meeting (AP-S 2008), San Diego, USA, 5-11 July 2008. H. Avni Serim, H. Arda Ülkü, Soner Karaca, Hilmi Öztürk, and A. Arif Ergin, “Geometric Evaluation of Physical Optics Integrals Using A Time-Domain Approach”, Proceedings of Vth International Workshop on Electromagnetic Wave Scattering (EWS 2008), Antalya, Turkey, 22-25October 2008. H. Arda Ülkü, Fatih Dikmen, and A. Arif Ergin, “Extension of Exact Evaluation of Retarded Time Potentials from 2D to 3D Source Distributions,” PIERS 2009, Moscow, Russia. H. Arda Ülkü, A. Arif Ergin, “Radon Transform Interpretation of Physical Optics Integral for Scalar Waves: The Near-Near Field Case” PIERS 2009, Moscow, Russia. H. Arda Ülkü, A. Arif Ergin, “Radon transform interpretation of the Physical Optics integral and application to near and far field acoustic scattering problems,” IEEE Antennas and Propagation Society International Symposium (APSURSI), Toronto, Canada, 11-17 July 2010. (DOI: 10.1109/APS.2010.5562314) Serdar Öztiftik, A. Arif Ergin, “Comparison of Swerling Target Models with the Results of a Radar Cross Section (RCS) Prediction Tool,” URSI Radio Science Meeting (APSURSI), Toronto, Canada, 11-17 July 2010. A. Arif Ergin, Soner Karaca, “An exact time domain evaluation for radiated fields from a Hertz dipole,” Mediterranean Microwave Symposium (MMS), 25-27 Aug. 2010, Güzelyurt, KKTC. (DOI: 10.1109/MMW.2010.5605141). A. Arif Ergin, “Expanding Boundaries of Defense Technologies," Int. Conf. on Science for Defense and Security 2012 (ICSDS2012), 1-5 Sept. 2012, Çeşme-İzmir, TURKEY. H. A. Ülkü, A. Arif Ergin, “Solution of the initial condition problem of the time-domain EFIE," Computational Electromagnetics Workshop (CEM) 2013, pages 17-18, 2-5 Aug. 2013, İzmir, TURKEY. (DOI: 10.1109/CEM.2013.6617116) National Conferences: Erkul Başaran, Serkan Aksoy, A. Arif Ergin, “Dikdörtgen Biçimli Bir Kavitenin Anti-Simetrik TM Rezonans Modlarında Uyarılması”, ELECO 2002 Sempozyum ve Fuarı, 186-187, Bursa, 18-22 Aralık 2002. Erkul Başaran, Serkan Aksoy, A. Arif Ergin, “Bir Kübik Kavitenin TE Rezonans Modunda Uyarılması İçin Kaynak Yerinin Belirlenmesine Yeni Bir Yaklaşım”, URSI 2002 Ulusal Kongresi, sayfa 32-33, İTÜ, İstanbul, 18-20 Eylül 2002. A. Arif Ergin, Sevgi Akgün, “Cisimlerden Yüzey dalgası yansıması için radar kesit alanı hesapları”, URSI 2002 Ulusal Kongresi, sayfa 46-49, İTÜ, İstanbul, 18-20 Eylül 2002. A. Arif Ergin, Bülent Şen, Önder Yılmaz, “Seken Işın Yönteminde Hızlı Işın Takibi İçin Çok Katmanlı Bir Algoritma,” Yüksek Performanslı Bilişim Sempozyumu, sayfa 9-12, GYTE, Kocaeli, 24-25 Ekim 2002. D. Bölükbaş, A. Arif Ergin, “Fiziksel Optik İntegralinin Radon Transformu Yorumu”, URSI 2004 Ulusal Kongresi, sayfa 207-209, Bilkent, Ankara, 8-10 Eylül 2004. Hüseyin A. Serim, A. Arif Ergin, “Fiziksel Optik Yaklaşımının Radon Dönüşümü Yorumu ile NURBS Yüzeyleri Üzerinden Radar Kesit Alanı (RKA) Hesaplanması”, URSI 2006 Ulusal Kongresi, sayfa 58-60, Hacettepe Üniversitesi, Ankara, Turkiye, 6-8 Eylül 2006. Sena Esen Bayer, A. Arif Ergin, “İnce Tel Yapılar için Zamanda Adımlama Yönteminin Newmark-Beta Formülasyonu ile Kararlılaştırılması”, URSI 2006 Ulusal Kongresi, sayfa 137-139, Hacettepe Üniversitesi, Ankara, Turkiye, 6-8 Eylül 2006. Abdulkadir C. Yücel, A. Arif Ergin, “Rao-Wilton-Glisson Temel Fonksiyonlarının Potansiyel İntegrallerinin Zaman Uzayındaki Analitik İfadeleri”, URSI 2006 Ulusal Kongresi, sayfa 152-154, Hacettepe Üniversitesi, Ankara, Turkiye, 6-8 Eylül 2006. Deniz Bölükbaş, A. Arif Ergin, “TYAR İmgesinin Değiştirilmiş Yaklaşık Prolate Seri Aradeğerleyiciler Kullanılarak İyileştirilmesi”, URSI 2006 Ulusal Kongresi, sayfa 155-157, Hacettepe Üniversitesi, Ankara, Turkiye, 6-8 Eylül 2006. Erkul Başaran, A. Arif Ergin, “Yüzey Dalgası ile Aydınlatılmış Deniz Yüzeyindeki Cisimlerin Radar Kesit Alanlarının ZUSF Yöntemiyle Hesaplanması”, URSI 2006 Ulusal Kongresi, sayfa 259-261, Hacettepe Üniversitesi, Ankara, Turkiye, 6-8 Eylül 2006. Ünal Aktaş, A. Arif Ergin, “HF Bandında Cooperatıve Diversity ve Software Defined Radio Yöntemlerini Kullanarak Kesintisiz Muhabere Sağlama Teknikleri ve Donanım Geliştirilmesi:”, IV. URSI – Türkiye Bilimsel Kongresi Ulusal Genel Kurul Toplantısı, Antalya, 22-25 Kasım 2008. Fatih Dikmen, H. Arda Ülkü, A. Arif Ergin, “Sabit Yoğunluklu Bir Ortamdaki Akustik Basınç Alanlarının Zaman Uzayında Kapalı-Form İfadeleri”, IV. URSI – Türkiye Bilimsel Kongresi Ulusal Genel Kurul Toplantısı, Antalya, 22-25 Kasım 2008. H. Arda Ülkü, A. Arif Ergin, “Zaman Uzayında Gecikmeli Potansiyellerin Analitik İfadesinin İntegral Denklemlerin Zamanda Adımlama Yöntemi ile Çözümüne Uygulanması”, IV. URSI – Türkiye Bilimsel Kongresi Ulusal Genel Kurul Toplantısı, Antalya, 22-25 Kasım 2008. O. Tulgar, A. A. Ergin, “YAR görüntüleme ve RKA ölçümleri için lineer denklem destekli matris kalem metodu”, sayfa 247-251, ELECO, Bursa, 2012. O. Tulgar, A. A. Ergin, “Yakın alan ölçümleri ile YAR görüntüleme ve RKA hesabı için lineer olmayan denklem destekli matris kalem metodu”, sayfa: 145-154, USMOS, Ankara, 2013.