Browsing by Author "Altıntaş, Ayhan"
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11th international conference MMET*2006
Altıntaş, Ayhan (IEEE, 2007)The 11th International Conference on Mathematical Methods in Electromagnetic Theory (MMET*06) was organized and sponsored by the IEEE APS East Ukraine Joint Chapter at the Kharkiv National University, Kharkiv, Ukraine, ... 
Analysis of an arbitrary conic section profile and thin dielectric cylindrical reflector illuminated by an Epolarized complex source point beam
Oǧuzer, T.; Kuyucuoǧlu F.; Avgin I.; Altıntaş, Ayhan (IEEE, 2012)We simulated arbitrary conic section profile and thin layer dielectric reflector using the Method of Analytical Regularization (MAR) techniques. The reflector is assumed to be illuminated by a complex source point type ... 
Analysis of an arbitrary profile reflector antenna having resistivetype surfaceHpolarization case
Oǧuzer, T.; Altıntaş, Ayhan; Nosich, A. I. (IEEE, 20080607)A regularizationbased numerical solution is obtained for arbitraryshape conic section profile reflector antenna in 2D, for the Hpolarization case. New point is that the reflector surface is assumed a resistivetype ... 
Analysis of an arbitrary profile reflector antenna system having resistive type surface–Epolarization case
Oǧuzer, T.; Altıntaş, Ayhan; Nosich, A. I. (IEEE, 200606)The regularized solution is performed for arbitrary shape conic section profile geometry. In this case the reflector surface is taken as made up of resistive type material. The problem is formulated depending on the circular ... 
Analysis of circular reflectors by complex sourcedual series approach
Oğuzer, Taner; Altıntaş, Ayhan; Nosich, A. L. (IEEE, 19930607)In the present paper, two dimensional circular reflector antennas are analyzed by a rigorous analyticalnumerical technique for both E and H polarization cases. The method is used in combination with the complex source ... 
Analysis of edge waves due to a point source in the presence of a PEC wedge
Ghassemiparvin, Behnam; Altıntaş, Ayhan (IEEE, 2014)In this paper, we investigate the behavior of the field in the paraxial region of a perfectly conducting wedge and analyze the guiding effect of the wedge. It is observed that as the wedge angle increases, the guidance ... 
Analysis of thin dielectric cylindrical reflector having an arbitrary conic section profile illuminated by complex line source: Hpolarization case
Oğuzer, T.; Kuyucuoğlu, F.; Avgın, İ.; Altıntaş, Ayhan (IEEE, 2014)Arbitrary conic section profile and thin dielectric reflector is analyzed by using the Method of Analytical Regularization (MAR) technique based on RiemannHilbert problem and Fourier inversion procedures. The reflector ... 
Application of fast methods to large scale rough surface scattering and propagation problems
Altıntaş, Ayhan; Ertürk, Vakur B.; Tunç, Celal; Topçu, Satılmış (2006) 
Asymptotic wavelike modeling of dielectric lenses
Yurchenko, V. B.; Altıntaş, Ayhan (IEEE, 2007)We propose asymptotic wavelike approximations for the accurate modeling of dielectric lenses used in quasioptical systems of millimeter, submillimeter, and infrared wave applications. For the comparison, we obtain an ... 
Characteristic equations for the lasing Modes of infinite periodic chain of quantum wires
Byelobrov, V. O.; Benson, T. M.; Altıntaş, Ayhan; Nosich, A.I. (IEEE, 200806)In this paper, we study the lasing modes of a periodic open optical resonator. The resonator is an infinite chain of active circular cylindrical quantum wires standing in tree space. Characteristic equations for the ... 
Comparison of various propagation models on real terrain: difficulties and remedies
Altıntaş, Ayhan; Aksun, İrşadi; Topçu, Satılmış; Köymen, Hayrettin; Yurchenko, V.; Yetginer, Emre; Yılmaz, Özgür (2000) 
Computer aided frequency planning for the radio and TV broadcasts
Altıntaş, Ayhan; Ocalı, O.; Topçu, Satılmış; Tanyer, S. G.; Köymen, Hayrettin (Institute of Electrical and Electronics Engineers, 199606)The frequency planning of the VHF and UHF broadcasts in Turkey is described. This planning is done with the aid of computer databases and digital terrain map. The frequency offset is applied whenever applicable to increase ... 
The effect of terrain roughness in the microwave lineofsight multipath fading estimation based on Rec. ITUR P.53015
Göktas, Polat; Altıntaş, Ayhan; Topçu, Satılmış; Karasan, Ezhan (IEEE, 201408)Multipath fading is an important constraint on the prediction of path loss for terrestrial lineofsight microwave links. The International Telecommunication Union  Radiocommunication (ITUR) Rec. P.530 [1] is one of the ... 
Electromagnetic scattering by several 2D single biological cell models
Göktaş, Polat; Sukharevsky, I. O.; Altıntaş, Ayhan (IEEE, 201801)The electromagnetic 2D scattering from a single biological cell is analyzed by using Muller boundary integral equation (MBIE) method. The accuracy and smoothness of the solution are improved by applying Nystromtype ... 
Electromagnetic scattering of THz waves from a microsize graphenesandwiched thin dielectric strip
Oğuzer, T.; Altıntaş, Ayhan (IEEE, 201807)Twodimensional (2D) scattering of the Hpolarized plane wave by a composite flat material strip is investigated. It is made as graphenedielectricgraphene sandwichlike structure which is placed in the free space. Our ... 
An electromagnetic sensing system incorporating multiple probes and single antenna for wireless structural health monitoring
Özbey, Burak; Altıntaş, Ayhan; Demir, Hilmi Volkan; Ertürk, Vakur B.; Kurç, Ö. (IEEE, 2017)In this study, a wireless and passive displacement/strain sensing system is proposed for structural health monitoring (SHM). The wireless and passive interrogation of the sensing unit [a variant of a nested splitring ... 
Enhancement of plasmon resonances in the wave scattering by finite grids of circular silver wires
Natarov, D. M.; Benson, T. M.; Altıntaş, Ayhan; Sauleau, R.; Nosich, A. I. (IEEE, 201009)Using the field expansions in local coordinates and addition theorems for cylindrical functions, we consider the problem of the Hpolarized plane wave scattered by a finite chain of circular wires. The absorption and ... 
Evaluation of the Epolarization focusing ability in Thz range for microsize cylindrical parabolic reflector made of thin dielectric layer sandwiched between graphene
Oğuzer, T.; Altıntaş, Ayhan (The Institution of Engineering and Technology, 20210622)We consider twodimensional (2D) thin dielectric parabolic reflector, covered with graphene from both sides, illuminated symmetrically by an Epolarized electromagnetic plane wave. Our aim is to estimate the focussing ... 
Fast integral equation techniques for propagation problems
Babaoğlu, Barış; Tunç, Celal A.; Altıntaş, Ayhan; Ertürk, Vakur B. (IEEE, 200409)In this paper, the Method of Moments (MoM) solution is achieved for scattering problems by using the stationary Spectrally Accelerated ForwardBackward method (FBSA) and the nonstationary Spectrally Accelerated BiConjugate ... 
Feasibility study of installation of solar panels on a high power HF antenna land
Ali, Abdul; Özbey, Burak; Topçu, Satılmış; Altıntaş, Ayhan (John Wiley and Sons Inc., 2016)In HF broadcasting, the transmitters are typically very powerful. In the case of Turkish Radio and Television (TRT), total transmission average power may reach up to 5 MW. Therefore, it is natural to utilize solar panels ...