Browsing by Author "Aksun, M. I."
Now showing items 1-19 of 19
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Analytical evaluation of the MoM matrix elements
(Institute of Electrical and Electronics Engineers, 1996-04)Derivation of the closed-form Green's functions has eliminated the computationally expensive evaluation of the Sommerfeld integrals to obtain the Green's functions in the spatial domain. Therefore, using the closed-form ... -
Choices of expansion and testing functions for the method of moments applied to a class of electromagnetic problems
(IEEE, 1993-03)It is well known that the choice of expansion and testing functions plays an important role in determining the rate of convergence of the integrals associated with the moment method matrix, and that an improper choice can ... -
Closed-form Green's functions for general sources and stratified media
(Institute of Electrical and Electronics Engineers, 1995-07)The closed-form Green's functions of the vector and scalar potentials in the spatial domain are presented for the sources of horizontal electric, magnetic, and vertical electric, magnetic dipoles embedded in general, ... -
Comparative study of acceleration techniques for integrals and series in electromagnetic problems
(IEEE, 1995-06)Most of the electromagnetic problems can be reduced down to either integrating oscillatory integrals or summing up complex series. However, limits of the integrals and the series usually extend to infinity. In addition, ... -
Comparative study of acceleration techniques for integrals and series in electromagnetic problems
(Wiley-Blackwell Publishing, Inc., 1995-11-01)Most electromagnetic problems can be reduced to either integrating oscillatory integrals or summing up complex series. However, limits of the integrals and the series usually extend to infinity, and, in addition, they may ... -
Design of dual-frequency probe-fed microstrip antennas with genetic optimization algorithm
(IEEE, 2003)Dual-frequency operation of antennas has become a necessity for many applications in recent wireless communication systems, such as GPS, GSM services operating at two different frequency bands, and services of PCS and ... -
Determining the effective constitutive parameters of finite periodic structures: Photonic crystals and metamaterials
(Institute of Electrical and Electronics Engineers, 2008)A novel approach to find the effective electric and magnetic parameters of finite periodic structures is proposed. The method uses the reflection coefficients at the interface between a homogenous half-space and the periodic ... -
Efficient and accurate EM simulation technique for analysis and design of MMICs
(John Wiley & Sons, Inc., 1997)A numerically efficient technique for the analysis and design of MMIC circuits is introduced and applied to some realistic problems. The formulation is based on the method of moments (MoM) in the spatial domain, and utilizes ... -
An efficient method for electromagnetic characterization of 2-D geometries in stratified media
(IEEE, 2002)A numerically efficient technique, based on the spectral-domain method of moments (MoM) in conjunction with the generalized pencil-of-functions (GPOF) method, is developed for the characterization of two-dimensional ... -
Efficient use of closed-form Green's functions for the analysis of planar geometries with vertical connections
(Institute of Electrical and Electronics Engineers, 1997-05)An efficient and rigorous method for the analysis of planarly layered geometries with vertical metallizations is presented. The method is based on the use of the closed-form spatial-domain Green's functions in conjunction ... -
Electromagnetic scattering solution of conducting strips in layered media using the fast multipole method
(Institute of Electrical and Electronics Engineers, 1996-08)The fast multipole method (FMM) is applied to the solution of the electromagnetic scattering problems in layered media for the first time. This is achieved by using closed-form expressions for the spatial-domain Green's ... -
A generalized eigenvalue method for fdtd analyses
(John Wiley & Sons, 1993-07)In this article we apply the generalized eigenvalue method (GEM) to extract the complex exponentials from a truncated time record computed by the finite‐difference time‐domain (FDTD) code for analyzing microwave integrated ... -
A novel approach for the efficient computation of 1-D and 2-D summations
(Institute of Electrical and Electronics Engineers Inc., 2016)A novel computational method is proposed to evaluate 1-D and 2-D summations and integrals which are relatively difficult to compute numerically. The method is based on applying a subspace algorithm to the samples of partial ... -
Numerically efficient analysis of planar microstrip configurations using closed-form Green's functions
(1995-02)An efficient technique for the analysis of a general class of microstrip structures with a substrate and a superstrate is investigated in this paper using newly-derived closed-form spatial domain Green's functions employed ... -
A numerically efficient technique for the analysis of slots in multilayer media
(Institute of Electrical and Electronics Engineers, 1998-04)A numerically efficient technique for the analysis of slot geometries in multilayer media is presented using closed-form Green's functions in spatial domain in conjunction with the method of moments (MoM). The slot is ... -
On the evaluation of spatial domain MoM matrix entries containing closed form Green's functions
(IEEE, 1997-07)The method of moments (MoM) is widely-used for the solution of mixed potential integral equations (MPIE) arising in the analysis of planar stratified geometries. However, the application of this technique in the spatial ... -
A robust approach for the derivation of closed-form Green's functions
(Institute of Electrical and Electronics Engineers, 1996-05)Spatial-domain Green's functions for multilayer, planar geometries are cast into closed forms with two-level approximation of the spectral-domain representation of the Green's functions. This approach is very robust and ... -
Spurious radiation from microstrip interconnects
(IEEE, 1993-05)The level of spurious radiation from microstrip interconnects, which are modeled here as either single or asymmetric parallel microstrip lines terminated by arbitrary complex load impedances, is investigated in this paper. ... -
Use of computationally efficient method of moments in the optimization of printed antennas
(IEEE, 1999-04)Derivation of the closed-form Green’s functions and analytical evaluation of the method of moments (MOM) matrix entries have improved the computational efficiency of the significantly in the analysis of printed geometries. ...
