An-Najah Blogs :: Dr. Naser Abu-Zaid http://blogs.najah.edu/author/naser-abu-zaid An-Najah Blogs :: Dr. Naser Abu-Zaid en-us Fri, 24 Nov 2017 22:11:03 IST Fri, 24 Nov 2017 22:11:03 IST webmaster@najah.edu webmaster@najah.edu Padé approximation for extended boundary condition method in electromagnetic scattering analysishttp://blogs.najah.edu/staff/naser-abu-zaid/article/Padeacute-approximation-for-extended-boundary-condition-method-in-electromagnetic-scattering-analysisPublished Articles The Pad approximation technique in conjunction with the extended boundary condition method EBC is implemented to solve the scattering problem over a finite frequency interval The algorithm is based on expanding the system equations in their power series and then finding a recurrence relation for the series coefficients Fairly good results are obtained 2002 John Wiley Sons Inc Microwave Opt Technol Lett 32: 100-101 2002 Received: 23 July 2001 Digital Object Identifier DOI 101002mop10101About DOIFinite element analysis of two-dimensional EM scattering via Padé approximation for complex permittivityhttp://blogs.najah.edu/staff/naser-abu-zaid/article/Finite-element-analysis-of-two-dimensional-EM-scattering-via-Padeacute-approximation-for-complex-permittivityPublished ArticlesWe present a computationally efficient algorithmwhich combines the finite element method with Pad approximation Thecombination is used to solve the problem of transverse magnetic and transverseelectric scattering from homogeneous lossy dielectric cylinders over a continuousrange of the complex permittivity variable by requiring the finite elementsolution only at a single complex permittivity value The proposed methodis based on 1 assuming a power series expansion for the unknown solutionvector the excitation vector and the system matrix 2 substituting thisinto the system matrix equation and 3 finding the recursion relation for the solution vectors Published 20 February 2002 Citation: Abu-Zaid N A and H Tosun 2002 Finite element analysis of two-dimensional EM scattering via Padapproximation for complex permittivity Radio Sci 371 1012 doi:1010292000RS002614 State-space formulation of two-dimensional electromagnetic scattering from dielectric cylindershttp://blogs.najah.edu/staff/naser-abu-zaid/article/State-space-formulation-of-two-dimensional-electromagnetic-scattering-from-dielectric-cylindersPublished ArticlesA numerical method is presented for the problem of transverse magnetic or transverse electric scattering from infinitely long lossy dielectric cylinders of arbitrary cross section The method is based on the solution of a system of linear ordinary differential equations in the state-space form The solution is achieved by finding the state transition-matrix and the zero-state response of the respective system Numerical results are presented for cylinders of various cross sections and they are compared with the results obtained by either exact or approximate numerical methods Received 11 March 1997; accepted 3 September 1998; Citation: Abu Zaid N A A Y Niazi and H Tosun 1999 State-space formulation of two-dimensional electromagnetic scattering from dielectric cylinders Radio Sci 342 297309