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The Smith chart provides an extremely useful way of visualizing transmission line phenomenon, and so is also important for pedagogical reasons. When illustrating fundamental concepts the Smith chart is the ideal tool, especially at the level where concepts are being explained to students and when they are exposed to these concepts for the first time. These sets of orthogonal circles make up the basic structure of the Smith chart and are shown in Fig. It consists of a series of overlapping orthogonal circles that intersect each other at right angles. Smith published a graphical device for solving these problems, the Smith Chart. The mathematics of transmission lines becomes cumbersome at times, especially when dealing with complex impedances and nonstandard situations. The real utility of the Smith chart, it can be used to convert from reflection coefficients to normalized impedances (or admittances), and vice versa. The smith chart is very useful when solving transmission problems. It reveals graphically the complex impedance anywhere along a line. INTRODUCTION Smith chart is a graphical tool for solving transmission line problems which was developed by P. Keywords: Smith chart, Transmission line, Impedance matching Reflection co-efficient, VSWR, Normalized Impedance, Normalized admittance

Here, we have solved some of the most common transmission line problems using this software and have compared the results of both experimental calculations as well as manual calculations. The concept of explaining the use of an important old tool like the Smith Chart, using modern tool like C to explain the use of the Smith Chart represents a prime example of the melding of the traditional and the leading edge. Here a computer-assisted learning technique is presented using C language for making lively and dynamic problem solving interface, by which one can implement the smith chart and solve problems easily related to transmission line and matching circuit. It provides a clever way to visualize complex functions and solving problems with transmission lines and matching circuits.

Volume: 03 Issue: 09 | Sep-2014, Available 290ĪN INNOVATIVE WAY FOR COMPUTERIZED SMITH CHART GENERATION AND TRANSMISSION LINE PROBLEM SOLVING Sangita Choudhury1, Namrata Kataki2 1Assistant Professor, EE, GIMT, Guwahati, Assam, India 2Assistant Professor, ECE, GIMT, Guwahati, Assam, India Abstract The Smith chart is one of the most useful graphical tools for high frequency circuit applications.