Browsing by Author "Altıntaş, Ayhan"
Now showing items 1-20 of 78
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11th international conference MMET*2006
(IEEE, 2007)The 11th International Conference on Mathematical Methods in Electromagnetic Theory (MMET*06) was organized and sponsored by the IEEE AP-S 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 E-polarized complex source point beam
(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 resistive-type surface-H-polarization case
(IEEE, 2008-06-07)A regularization-based numerical solution is obtained for arbitrary-shape conic section profile reflector antenna in 2-D, for the H-polarization case. New point is that the reflector surface is assumed a resistive-type ... -
Analysis of an arbitrary profile reflector antenna system having resistive type surface–E-polarization case
(IEEE, 2006-06)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 source-dual series approach
(IEEE, 1993-06-07)In the present paper, two dimensional circular reflector antennas are analyzed by a rigorous analytical-numerical 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
(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: H-polarization case
(IEEE, 2014)Arbitrary conic section profile and thin dielectric reflector is analyzed by using the Method of Analytical Regularization (MAR) technique based on Riemann-Hilbert problem and Fourier inversion procedures. The reflector ... -
Asymptotic wave-like modeling of dielectric lenses
(IEEE, 2007)We propose asymptotic wave-like approximations for the accurate modeling of dielectric lenses used in quasi-optical 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
(IEEE, 2008-06)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 ... -
Computer aided frequency planning for the radio and TV broadcasts
(Institute of Electrical and Electronics Engineers, 1996-06)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 line-of-sight multipath fading estimation based on Rec. ITU-R P.530-15
(IEEE, 2014-08)Multipath fading is an important constraint on the prediction of path loss for terrestrial line-of-sight microwave links. The International Telecommunication Union - Radiocommunication (ITU-R) Rec. P.530 [1] is one of the ... -
Electromagnetic scattering by several 2-D single biological cell models
(IEEE, 2018-01)The electromagnetic 2-D 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 Nystrom-type ... -
Electromagnetic scattering of THz waves from a microsize graphene-sandwiched thin dielectric strip
(IEEE, 2018-07)Two-dimensional (2-D) scattering of the H-polarized plane wave by a composite flat material strip is investigated. It is made as graphene-dielectric-graphene sandwich-like structure which is placed in the free space. Our ... -
An electromagnetic sensing system incorporating multiple probes and single antenna for wireless structural health monitoring
(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 split-ring ... -
Enhancement of plasmon resonances in the wave scattering by finite grids of circular silver wires
(IEEE, 2010-09)Using the field expansions in local coordinates and addition theorems for cylindrical functions, we consider the problem of the H-polarized plane wave scattered by a finite chain of circular wires. The absorption and ... -
Evaluation of the E-polarization focusing ability in Thz range for microsize cylindrical parabolic reflector made of thin dielectric layer sandwiched between graphene
(The Institution of Engineering and Technology, 2021-06-22)We consider two-dimensional (2-D) thin dielectric parabolic reflector, covered with graphene from both sides, illuminated symmetrically by an E-polarized electromagnetic plane wave. Our aim is to estimate the focussing ... -
Fast integral equation techniques for propagation problems
(IEEE, 2004-09)In this paper, the Method of Moments (MoM) solution is achieved for scattering problems by using the stationary Spectrally Accelerated Forward-Backward method (FBSA) and the non-stationary Spectrally Accelerated BiConjugate ... -
Feasibility study of installation of solar panels on a high power HF antenna land
(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 ...
