Syllabus

Module-I
Fundamental of TEM mode wave propagation on a transmission line and its analysis. Equivalent lumped-element circuit model for a Transmission Line. Power flow through lossless and lossy transmission line. Comparison between Coaxial line, microstrip line and stripline. (6 hrs.)

Module-II
Basic concept and properties of Scattering-parameters (S-parameters). Generalized S-parameters for N-port networks and T parameters and its application. Determination of S-parameters of a two-port network mathematically and graphically using signal flow graph. Operating, transducer and available power gain expression (mathematical derivation and signal flow graph) of a two-port network. Calculation of S-parameters of various configuration of TEM mode-based transmission line. (8 hrs.)


Module-III
Smith Chart analysis. Impedance matching of lumped elements (T and p-network) and distributed elements (one-port and two port networks) using analytical (mathematical calculation) method and graphical analysis using Smith chart (Z-Y Chart). Single and double stub matching distributed element-based network design analytically and graphically using Smith chart. Using lumped and distributed elements broadband matching network design. Impedance matching using multiple transmission lines with different characteristic impedances and electrical lengths. (10 hrs.)

Module-IV
Analysis and design of various RF microwave passive components: Impedance transformers, Branch line and Rat Race couplers, Wilkinson power divider, planar edge coupled coupler. Using insertion loss method microwave filter design. Low-pass filter design using stepped impedance method (Richard transformation). Planar edge coupled bandpass filter design in distributed domain. (6 hrs.)

Module-V
Microwave Amplifier Design: Two-port network-based amplifier design technique and analysis. Stability criterion of a two-port active network: unconditional and conditional stability. Stability analysis, Input and output stability circle. Various power gain circles and VSWR circle derivation. Simultaneous conjugate matching to implement small signal amplifier. Amplifier design with specific power gain. (8 hrs.)

Understanding the basic concepts of RF/microwave parameters, components and circuits.

Enabling the students design and analyze RF/microwave components and circuits using analytical and numerical means.

Practically implementing RF narrowband and broadband matching network, Branch line and Rat-Race coupler, Wilkinson power divider.

Gaining knowledge of active circuit design.

CO1: Understand the differences between high frequency (microwave) circuits and low frequency circuits.
CO2: Apply the concepts of wave propagation and generation, transmission lines, and impedance to microwave circuits.
CO3: Analyze typical microwave networks using impedance, admittance, transmission and scattering matrix representations and construct matching networks analytically and graphically with the help of Smith chart.
CO4: Design and layout passive microwave circuits including Branch line and Rat-Race coupler, Wilkinson power divider and filter design.
CO5: Practically implement Microwave small signal amplifier design.

D M Pozar, Microwave Engineering, John Wiley & Sons, 2004

2. Gonzalez G., Microwave transistor amplifiers: analysis and design, 2nd Prentice-Hall Upper Saddle River, NJ 1997

2. T. T. Ha, Solid State Microwave Amplifier Design, New York, Wiley, 1981

K. C. Gupta, Ramesh Garg, I. J. Bahl, Microstrip Lines and Slotlines, Artech House, 1979