GTD solution with higher order terms to the diffraction by an edge: Towards a uniform solution

Date

1996-02-01

Author

Buyukdura, OM

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

123
views

0
downloads

A UTD solution for an edge of a perfectly conducting wedge is presented which includes terms of order higher than the ordinary UTD. The problem is studied for three special cases: (i) plane and (ii) spherical wave incidence on a straight wedge with planar surfaces, and (iii) cylindrical wave incidence on a wedge with surfaces curved in the direction normal to the edge. This solution not only compensates the jump discontinuities in the GO field but also the discontinuities in the derivative. The solution found is exact for the special case of a plane wave incident on a halfplane. The solution with the higher order terms is found to be accurate when the large parameter is reduced by a factor of two as compared with the ordinary UTD solution.

Subject Keywords

Computer Networks and Communications, Electrical and Electronic Engineering

URI

https://hdl.handle.net/11511/63617

Journal

IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION

DOI

https://doi.org/10.1049/ip-map:19960117

Collections

Department of Electrical and Electronics Engineering, Article

Suggestions

OpenMETU
Core

Ground-state properties of quasi-one-dimensional electron systems within dynamic local-field correction: Quantum Singwi-Tosi-Land-Sjolander theory Tanatar, B; Bulutay, C (1999-06-15) Dynamic local-field correction (LFC) brings a richer picture about the description of a many-body system than the standard mean-held theories. Here we investigate the ground-state properties of a quasi-one-dimensional electronic system using the quantum version of the Singwi-Tosi-Land-Sjolander (STLS) theory and present a critical account of its performance. The results are markedly different than those theories based on static LFC and the random-phase approximation; an example is the static structure facto...
Design and improvement of multi-level decision-making models Beldek, Ulaş; Leblebicioğlu, Mehmet Kemal; Department of Electrical and Electronics Engineering (2009) In multi-level decision making (DM) approaches, the final decision is reached by going through a finite number of DM levels. Usually, in each level, a raw decision is produced first and then a suitable decision fusion technique is employed to merge the lower level decisions with the raw decision in the construction of the final decision of the present level. The basic difficulty in these approaches is the determination of how the consecutive levels should interact with each other. In this thesis, two differ...
Triangular-Shaped Single-Loop Resonator: A Triple-Band Metamaterial With MNG and ENG Regions in S/C Bands Yurduseven, Ozan; Yilmaz, Asim Egemen; Sayan, Gönül (Institute of Electrical and Electronics Engineers (IEEE), 2011-01-01) A new metamaterial topology, called triangular-shaped single-loop resonator (SLR), is introduced with two distinct mu-negative (MNG) regions and one epsilon-negative (ENG) region over the S/C frequency bands. Transmission and reflection characteristics of the suggested subwavelength resonator are analyzed using full-wave electromagnetic solvers, Ansoft HFSS and CST Microwave Studio (MWS), to demonstrate the presence of four closely located resonance frequencies within the 3.3-5.1 GHz range. Effective permit...
Dual-polarised T/R antenna system suitable for FMCW altimeter radar applications Secmen, M.; Demir, S.; Hizal, A. (Institution of Engineering and Technology (IET), 2006-10-01) The authors propose a dual-polarised T/R antenna system that utilises a 3 dB 90 degrees hybrid coupler and a dual-polarised antenna. From the practical point of view the T/R isolation performance of this system can be made better than that of systems using circulators. There is no power loss both in transmit and receive modes compared to 6 dB total loss in a conventional system using a hybrid coupler and a single polarised antenna. To validate the system performance, a sample structure is realised for a C b...
Efficient hybrid discrete Fourier transform-moment method for fast analysis of large rectangular arrays Chou, HT; Ho, HK; Pathak, PH; Nepa, P; Aydın Çivi, Hatice Özlem (Institution of Engineering and Technology (IET), 2002-02-01) A novel approach combining the moment method (MoM) and the discrete Fourier transform (DFT) is developed for the fast analysis of electromagnetic (EM) radiation/scattering from electrically large, finite, planar rectangular arrays. In particular, the unknown array distribution to be solved is represented in terms of the DFT within the MoM for a given array excitation. The proposed DFT-MoM approach for large arrays has the advantage that it can overcome the inefficiency of the conventional MoM approach by dr...

Citation Formats

O. Buyukdura, “GTD solution with higher order terms to the diffraction by an edge: Towards a uniform solution,” IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, pp. 43–50, 1996, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/63617.