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| ECE 3&2 Microwave Engineering | ||
|---|---|---|
| S.No | Chapters / Units | Download Link |
| 1 | Unit 1 | Download |
| 2 | Unit 2 | Download |
| 3 | Unit 3 | Download |
| 4 | Unit 4 | Download |
| 5 | Unit 5&6 | Download/ Download |
ECE 3-2 MWE Important Topics
UNIT I
MICROWAVE TRANSMISSION LINES: Introduction, Microwave Spectrum and Bands,
Applications of Microwaves. Rectangular Waveguides – TE/TM mode analysis, Expressions
for Fields, Characteristic Equation and Cut-off Frequencies, Filter Characteristics, Dominant
and Degenerate Modes, Sketches of TE and TM mode fields in the cross-section, Mode
Characteristics – Phase and Group Velocities, Wavelengths and Impedance Relations,
Impossibility of TEM mode. Related Problems
MICROSTRIP LINES– Introduction, Zo Relations, Effective Dielectric Constant, Losses,
Q factor
UNIT II
MICROWAVE TUBES: Limitations and Losses of conventional tubes at microwave
frequencies, Re-entrant Cavities, Microwave tubes – O type and M type classifications, O-
type tubes :2 Cavity Klystrons – Structure, Velocity Modulation Process and Applegate
Diagram, Bunching Process and Small Signal Theory –, Applications, Reflex Klystrons –
Structure, Applegate Diagram and Principle of working, Electronic Admittance; Oscillating
Modes and output Characteristics, Electronic and Mechanical Tuning, Applications,
UNIT - III
HELIX TWTS: Significance, Types and Characteristics of Slow Wave Structures; Structure
of TWT and Suppression of Oscillations,
M-type Tubes
Introduction, Cross-field effects, Magnetrons – Different Types, 8-Cavity Cylindrical
Travelling Wave Magnetron – Hull Cut-off Condition, Modes of Resonance and PI-Mode
Operation, Separation of PI-Mode, o/p characteristics
UNIT IV
WAVEGUIDE COMPONENTS AND APPLICATIONS - I: Coupling Mechanisms –
Probe, Loop, Aperture types. Waveguide Discontinuities – Waveguide irises, Tuning Screws
and Posts, Matched Loads. Waveguide Attenuators – Resistive Card, Rotary Vane types;
Waveguide Phase Shifters – Dielectric, Rotary Vane types, Scattering Matrix– Significance,
Formulation and Properties, S-Matrix Calculations for – 2 port Junction, E-plane and H-plane
Tees, Magic Tee, Hybrid Ring; Directional Couplers – 2Hole, Bethe Hole types, Ferrite
Components– Faraday Rotation, S-Matrix Calculations for Gyrator, Isolator, Circulator,
Related Problems.
UNIT V
MICROWAVE SOLID STATE DEVICES: Introduction, Classification, Applications.
TEDs – Introduction, Gunn Diode – Principle, RWH Theory, Characteristics, Basic Modes
of Operation, Oscillation Modes
MICROWAVE MEASUREMENTS: Description of Microwave Bench – Different Blocks
and their Features, Precautions; Microwave Power Measurement – Bolometer Method.
Measurement of Attenuation, Frequency, Q- factor, Phase shift, VSWR, Impedance
Measurement
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