Microwave Engineering(404183)

Unit I : Transmission Lines and Waveguides
Introduction to Microwaves engineering: History of Microwaves, Microwave Frequency bands.
Applications of Microwave.
General solution for TEM, TE and TM waves,Parallel plate waveguide, and rectangular waveguide. Wave guide parameters. Introduction tocoaxial line, Rectangular waveguide cavity resonators, Circular waveguide cavity resonators

Unit II : Microwave Components
Multi port junctions: Construction and operation of E-plane, H-plane, Magic Tee and Directional couplers.
Ferrites components: - Ferrite Composition and characteristics, Faraday rotation, Construction and operation of Gyrator, Isolator and Circulator.
Striplines: Structural details and applications of Striplines, Microstrip line, Parallel Strip line, Coplanar Strip line, Shielded Strip Line.

Unit III : Microwave Network Analysis
Introduction and applications of Impedance and Equivalent voltages and currents, Impedance and Admittance matrices, The Transmission (ABCD) matrix
Scattering Matrix:-Significance, formulation and properties. S-Matrix calculations for-2 port network junction, E plane, H-plane and E-H (Magic Tee) Tees, Directional coupler, Isolator and Circulator. Related problems.

Unit IV : Microwave Tubes
Limitations of conventional tubes, O and M type classification of microwave tubes, reentrant cavity, velocity modulation.
O type tubes
Two cavity Klystron: Construction and principle of operation, velocity modulation and bunching process Applegate diagram.
Reflex Klystron: Construction and principle of operation, velocity modulation and bunching process, Applegate diagram, Oscillating modes, o/p characteristics, efficiency, electronic & mechanical tuning.
M-type tubes
Magnetron: Construction and Principle of operation of 8 cavity cylindrical travelling wave magnetron, hull cutoff condition, modes of resonance, PI mode operation, o/p characteristics, Applications.
Slow wave devices
Advantages of slow wave devices, Helix TWT: Construction and principle of operation, Applications.

Unit V :Microwave Solid State Devices
Microwave bipolar transistor, FET, MESFET, Varactor Diode, PIN Diode, Shottky Barrier Diode, Tunnel Diode, TEDs, Gunn Diodes, IMPATT diode and TRAPATT diode. Structural details, Principle of operation, various modes, specifications, and applications of all these devices.

Unit VI : Microwave Measurements
Measurement devices: Slotted line, Tunable detector, VSWR meter, Power Meter, S-parameter measurement, frequency measurements, Power measurement, Attenuation measurement, Phase shift measurement, VSWR measurement, Impedance measurement, Q of cavity resonator measurement

Text Books
1. Samuel Y. Liao, “Microwave Devices and Circuits”, 3rd edition, Pearson
2. David M. Pozar, “Microwave Engineering", Fourth edition, Wiley.

Reference Books
1. M. Kulkarni, “Microwave and Radar engineering”, 3rd edition, Umesh Publications
2. ML Sisodia& GS Raghuvamshi, “Microwave Circuits and Passive Devices”Wiley, 1987
3. M L Sisodia& G S Raghuvanshi, “Basic Microwave Techniques and Laboratory Manual”, New Age International (P) Limited, Publishers.