Download Analytical and Computational Methods in Electromagnetics by Ramesh Garg PDF

By Ramesh Garg

ISBN-10: 1596933852

ISBN-13: 9781596933859

In attaining optimum microwave process functionality via gaining knowledge of the foundations and strategies underlying state-of-the-art strong computational instruments and advertisement software program in electromagnetics. This authoritative source provides you with transparent and entire clarification of this crucial electromagnetics wisdom, giving you the analytical historical past you want to comprehend such key techniques as mother (method of moments), FDTD (Finite distinction Time area) and FEM (Finite aspect Method), and Green's capabilities. This complete ebook contains all math essential to grasp the fabric. in addition, it good points a number of solved difficulties that support determine your realizing of key strategies during the e-book.

To retain you from being slowed down with advanced mathematical information (vector calculus) and coding, this accomplished quantity locations emphasis at the research of the scalar wave equation in Cartesian coordinates. The ebook additionally contains a number of selection questions, applicable for self learn or classes, that support make clear techniques with none mathematical burden. choked with over 1,300 equations, lots of the difficulties offered within the ebook should be solved utilizing not anything greater than calculator.

Software integrated

CD-ROM-Included! comprises time-saving Matlab® resource code for the issues offered within the e-book which are simply transformed that can assist you resolve related difficulties within the box.

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Extra resources for Analytical and Computational Methods in Electromagnetics

Sample text

The experimental methods, however, are expensive, time consuming, and limited in scope because their results are applicable to the set of parameters used in the experiment. 10. The ab initio method is to solve the Maxwell’s equations subject to the boundary conditions imposed by the device. This approach is followed in the FDTD method. An alternative approach, which involves less number of unknowns, is to solve the wave equation or Helmholtz equation, and is derived from the Maxwell’s equations.

3 Projection of f on x-axis to determine its x-component. Here coefficients c i are analogous to a i , and u i (x) analogous to xˆ i . However, the summation now extends over an infinite number of terms. The functions u i (x) are called expansion functions or basis functions. 39) a The norms are used to normalize the functions u i (x), and simply means dividing u i (x) by √N i . The resulting functions u i (x)/√N i are called normalized orthogonal functions, or orthonormal functions for brevity.

38) This equation is known as Laplace equation and is frequently employed in electrostatics. When the frequency is not too high, the electrostatic approach may be used to approximate the results for otherwise full-wave situation, and the approximation is called quasi-static approximation. The quasi-static parameters for microstrip line may be used up to about 3 GHz. We shall use Poisson and Laplace equations to solve problems related to microstrip line, strip line, static charge distribution on a metal wire, and capacitor.

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