Book Details

Microwave Engineering

Microwave Engineering

Published by uLektz

Course Code:RT32043

Author:uLektz

University: JNTU Kakinada

Regulation:2013

Categories:Electronics & Communication

Format : ico_bookePUB3 (DRM Protected)

Type :eBook

Rs.199 Rs.30 Rs.85% off

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Description :Microwave Engineering of RT32043 covers the latest syllabus prescribed by JNTU Kakinada for regulation 2013. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

Topics
UNIT I MICROWAVE TRANSMISSION LINES

1.1 MICROWAVE TRANSMISSION LINES: Introduction, Microwave Spectrum and Bands, Applications of Microwaves

1.2 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; Power Transmission and Power Losses in Rectangular Guide, Impossibility of TEM mode. Related Problems

UNIT II CIRCULAR WAVEGUIDES

2.1 CIRCULAR WAVEGUIDES: Introduction, Nature of Fields, Characteristic Equation, Dominant and Degenerate Modes

2.2 Microstrip Lines - Introduction, Z₀ Relations, Effective Dielectric Constant, Losses, Q factor

2.3 Cavity Resonators– Introduction, Rectangular and Cylindrical Cavities, Dominant Modes and Resonant Frequencies, Q factor and Coupling Coefficients, Excitation techniques- waveguides and cavities, Related Problems

UNIT III WAVEGUIDE COMPONENTS AND APPLICATIONS - I

3.1 Coupling Mechanisms – Probe, Loop, Aperture types

3.2 Waveguide Discontinuities – Waveguide irises, Tuning Screws and Posts, Matched Loads.

3.3 Waveguide Attenuators – Resistive Card, Rotary Vane types

3.4 Waveguide Phase Shifters – Dielectric, Rotary Vane types

3.5 Scattering Matrix – Significance, Formulation and Properties. S-Matrix Calculations for – 2 port Junction, E-plane and H-plane Tees, Magic Tee, Hybrid Ring

3.6 Directional Couplers – 2Hole, Bethe Hole types, Ferrite Components – Faraday Rotation, S-Matrix Calculations for Gyrator, Isolator, Circulator, Related Problems

UNIT IV MICROWAVE TUBES

4.1 MICROWAVE TUBES: Limitations and Losses of conventional tubes at microwave frequencies. Microwave tubes – O type and M type classifications.

4.2 O-type tubes: 2 Cavity Klystrons – Structure, Reentrant Cavities, Velocity Modulation Process and Applegate Diagram, Bunching Process and Small Signal Theory –Expressions for o/p Power and Efficiency

4.3 Reflex Klystrons – Structure, Applegate Diagram and Principle of working, Mathematical Theory of Bunching, Power Output, Efficiency, Electronic Admittance, Oscillating Modes and o/p Characteristics, Electronic and Mechanical Tuning, Related Problems

UNIT V HELIX TWTS

5.1 HELIX TWTS: Significance, Types and Characteristics of Slow Wave Structures; Structure of TWT and Suppression of Oscillations, Nature of the four Propagation Constants

5.2 M-type Tubes: Introduction, Cross-field effects, Magnetrons – Different Types, 8-Cavity Cylindrical Travelling Wave Magnetron – Hull Cut-off and Hartree Conditions, Modes of Resonance and PI-Mode Operation, Separation of PI-Mode, o/p characteristics

UNIT VI MICROWAVE SOLID STATE DEVICES AND MICROWAVE MEASUREMENTS

6.1 MICROWAVE SOLID STATE DEVICES: Introduction, Classification, Applications

6.2 TEDs – Introduction, Gunn Diode – Principle, RWH Theory, Characteristics, Basic Modes of Operation, Oscillation Modes

6.3 Avalanche Transit Time Devices – Introduction, IMPATT and TRAPATT Diodes – Principle of Operation and Characteristics

6.4 MICROWAVE MEASUREMENTS: Description of Microwave Bench – Different Blocks and their Features, Precautions, Microwave Power Measurement – Bolometer Method, Measurement of Attenuation, Frequency, VSWR, Cavity Q, Impedance Measurements

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