Extension to a hybrid UTD-MoM approach for the efficient analysis of radiation/scattering from tapered array distributions

Date

2000-07-21

Author

Aydın Çivi, Hatice Özlem
Chou, HT
Nepa, P

Metadata

Show full item record

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

Item Usage Stats

128
views

0
downloads

Summary form only given. A hybrid method, which combines the UTD ray technique with the numerical MoM approach has been developed to provide a relatively efficient analysis of EM radiation/scattering from an electrically large, planar, periodic, finite array. In this paper, an extension of the hybrid UTD-MoM approach of Aydin Civi, Pathak and Chou (see URSI EMT meeting, Thessaloniki, Greece, May 1998) is presented to deal with tapered array distributions, as well as periodic arrays that may support more than one propagating Floquet mode (although most array designs allow only one propagating Floquet mode to exist within the operating frequency band). In this hybrid UTD-MoM method, an integral equation formulation for the unknown currents on the array elements is solved within the MoM framework in a relatively efficient manner by essentially introducing only a few appropriate UTD-type global basis functions to describe the functional form of the unknown array element weights.

Subject Keywords

Scattering , Message-oriented middleware , Electromagnetic radiation , Kirchhoff's Law , Integral equations , Impedance , Information analysis , Planar arrays , Apertures

URI

https://hdl.handle.net/11511/54414

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

An experimental approach to period doubling bifurcations in plasmas Uzun Kaymak, İlker Ümit (2017-01-01) Summary form only given. A direct current (dc) driven semiconductor-gas discharge system is designed to study nonlinear behavior and period doubling features experimentally. Numerical analysis and theoretical studies show that the period doubling is expected in the discharge 1 . The plasma is generated between two planar electrodes separated by a narrow gap: cathode is undoped Gallium Arsenide (GaAs) and anode is an IndiumTin Oxide (ITO) coated glass electrode. The GaAs is extensively studied in solid-state...
Promoting the investment on IPPs for optimal grid planning Tor, Osman; Mohammad, Shahidehpour; Güven, Ali Nezih (2011-07-29) Summary form only given. This paper presents a transmission expansion planning (TEP) model which coordinates investment decisions in monopolistic transmission and decentralized generator sectors. The proposed planning approach gauges transmission congestion and security constraints with respect to transmission investments while promoting investments on independent power produces (IPPs) through incentive payments. The paper includes discussions on incentive mechanisms and prioritization among qualified IPPs ...
Optical Waveguides Written Deep Inside Silicon by Femtosecond Laser Pavlov, Ihor; Pavlova, Svitlana; Kadan, Viktor; Makey, Ghaith; Turnali, Ahmet; Colakoglu, Tahir; Yavuz, Ozgun; İLDAY, Fatih Ömer (2017-06-29) Summary form only given. Photonic devices that can guide, transfer or modulate light are highly desired in electronics and integrated silicon photonics. Through the nonlinear processes taking place during ultrafast laser-material interaction, laser light can impart permanent refractive index change in the bulk of materials, and thus enables the fabrication of different optical elements inside the material. However, due to strong multi-photon absorption of Si resulting delocalization of the light by free car...
(In)Distinctive Role of Long Non-Coding RNAs in Common and Rare Ovarian Cancers Sabol, Maja; Calleja-Agius, Jean; Di Fiore, Riccardo; Suleiman, Sherif; Özcan Kabasakal, Süreyya; Ward, Mark P.; Ozretic, Petar (2021-10-01) Simple Summary:& nbsp;Ovarian cancers (OCs) are the most lethal form of gynecological tumors. The commonest are high-grade serous OCs, while rare OCs originate from many different cell types, such as epithelial, germ cell, sex cord-stromal, or mixed types. Rare OCs have distinct molecular characteristics, prognosis, and therapeutic approaches. However, all ovarian malignancies mostly share the same problem: late diagnosis due to the lack of specific symptoms. Therefore, there is a perpetual need to discover...
Pseudoscalar-meson decuplet-baryon coupling constants in light cone QCD Alıyev, Tahmasıb; Özpineci, Altuğ; Savcı, Mustafa (American Physical Society (APS), 2009-11-01) Taking into account the SU(3)(f) breaking effects, the strong coupling constants of the pi, K, and eta mesons with decuplet baryons are calculated within the light cone QCD sum rules method. It is shown that all coupling constants, even in the case of SU(3)(f) breaking, are described in terms of only one universal function. It is shown that for Xi(*0)->Xi(*0)eta, transition violation of SU(3)(f) symmetry is very large and for other channels when SU(3)(f) symmetry is violated, its maximum value constitutes 1...

Citation Formats

H. Ö. Aydın Çivi, H. Chou, and P. Nepa, “Extension to a hybrid UTD-MoM approach for the efficient analysis of radiation/scattering from tapered array distributions,” 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54414.