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Basic Tools of Microwave Engineering

Basic Tools of Microwave Engineering. Instructor: Prof. Amitabha Bhattacharya, Department of Electronics and Communication Engineering, IIT Kharagpur. The course will introduce three basic tools of a microwave engineering: smith chart, s-parameter and signal flow graph. The lectures would try to emphasize the need to understand the key concepts behind these tools for solving various analysis and design problems in microwave engineering. The concepts of microwave measurement both in the traditional microwave bench and network analyzer would be explained and some typical applications of the tools like impedance matching, network analyzer calibration, and directional coupler characterization would be demonstrated. The course would lay the foundation for further exploring the vast area of microwave engineering analysis and design. (from nptel.ac.in)

Lecture 06 - Need of Impedance Matching at Microwave Frequency

Concepts covered in this lecture: 1). Approximation of amount of power delivered from the source to load when there is mismatch. 2). Sensitivity of power loss to load impedance. 3). Need of impedance matching and concept of conjugate impedance matching for maximum power delivery to load.


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Lecture 01 - Challenges of Microwave Design
Lecture 02 - Introduction to the 1st Tool: Smith Chart
Lecture 03 - Measurement of Unknown Impedance
Lecture 04 - Application of Smith Chart for Finding Unknown Impedance in Laboratory
Lecture 05 - Problem Solving Using Smith Chart
Lecture 06 - Need of Impedance Matching at Microwave Frequency
Lecture 07 - Lumped Element Based Impedance Matching Network Design by Smith Chart
Lecture 08 - Distributed Impedance Matching Design by Smith Chart
Lecture 09 - Broadband Impedance Matching Network Design
Lecture 10 - Tutorial: Impedance Matching Network Design by Smith Chart
Lecture 11 - Voltage and Current at Microwave Frequency
Lecture 12 - Scattering Parameter: the Second Tool
Lecture 13 - Properties of Scattering Parameter
Lecture 14 - Network Analyzer
Lecture 15 - Tutorial: Problem Solving on Equivalent Voltage and Current in Waveguide
Lecture 16 - Relation between S-parameters and Transmission Parameters
Lecture 17 - Scattering Parameters of Coupler and Magic Tee
Lecture 18 - Signal Flow Graph
Lecture 19 - Understanding Network Analyser Calibration With the Help of Signal Flow Graph
Lecture 20 - Tutorial: Problem Solving Related to S-Parameters and Signal Flow Graph