dc.contributor.advisor | Altıntaş, Ayhan | |
dc.contributor.author | Dağdelen, Murat Erdal | |
dc.date.accessioned | 2016-10-31T06:17:58Z | |
dc.date.available | 2016-10-31T06:17:58Z | |
dc.date.copyright | 2016-09 | |
dc.date.issued | 2016-09 | |
dc.date.submitted | 2016-10-25 | |
dc.identifier.uri | http://hdl.handle.net/11693/32506 | |
dc.description | Cataloged from PDF version of article. | en_US |
dc.description | Thesis (M.S.): Bilkent University, Department of Electrical and Electronics Engineering, İhsan Doğramacı Bilkent University, 2016. | en_US |
dc.description | Includes bibliographical references (leaves 59-62). | en_US |
dc.description.abstract | Full wave solution techniques are preferred to calculate the electromagnetic characteristic
of an object. These methods give very accurate results. However, when
the object is electrically large regarding wavelength, computation time may take
very long, or required computer resources may not be provided. In this case,
high-frequency approximation techniques are employed to solve electromagnetic
scattering problems involving electrically large objects. Shooting and Bouncing
Ray (SBR) method is a high-frequency technique that combines Geometric Optics
(GO) and Physical Optics (PO). It can be used for the solution of electrically
large objects. Multiple re
ection feature of SBR makes it possible to calculate
current distribution accurately on the target for the complex objects.
In this study, an SBR code is developed in MATLABR
which solves di erent
kinds of problems that involve electrically large objects. Required formulas are
derived and implementation procedure of the code is discussed. Radar Cross
Section (RCS) of some basic shapes is calculated using SBR. An RCS reduction
technique is explained and implemented. As the antenna-platform interaction,
di erent kind of antennas are placed on a tank-like and a ship-like object to
observe the e ect of a scatterer on antenna pattern. An antenna coupling formula
is derived. This formula is used to calculate coupling between two antennas
in di erent environments. Results show fairly good agreement with Method of
Moment (MoM) solutions. | en_US |
dc.description.statementofresponsibility | by Murat Erdal Dağdelen. | en_US |
dc.format.extent | xii, 62 leaves : charts (some color). | en_US |
dc.language.iso | English | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Shooting and Bouncing Ray | en_US |
dc.subject | Physical Optics | en_US |
dc.subject | Radar Cross Section | en_US |
dc.subject | High Frequency Techniques | en_US |
dc.subject | Antenna Coupling | en_US |
dc.title | Development and implementation of SBR technique for scattering and RCS problems | en_US |
dc.title.alternative | Saçılma ve RKA problemleri için SIY tekniğinin geliştirilmesi ve uygulanması | en_US |
dc.type | Thesis | en_US |
dc.department | Department of Electrical and Electronics Engineering | en_US |
dc.publisher | Bilkent University | en_US |
dc.description.degree | M.S. | en_US |
dc.identifier.itemid | B154555 | |
dc.embargo.release | 2018-07-22 | |