Unit – 1 Microwave Passive Devices And Wave Guides

1.1 Need and applications, limitations of conventional tubes at microwaves, microwave frequency spectrum. 

1.2 Rectangular wave guide, cut off wavelength, cut off frequency ,phase velocity, group velocity, advantages, applications. 1.3 Rectangular waveguide modes: TM, TE,TEM.

1.4 Parallel plane wave guide, cut off wavelength, cut off frequency ,phase velocity, group velocity.

1.5 Circular waveguide: Advantages, disadvantages and applications 

1.6 problems based on waveguide

1.7 Attenuators : Flip and vane type, E plane Tee, H-plane Tee, Magic Tee and terminators. 


Unit- 2 Microwave tubes and component

2.1 Two cavity klystron, Applegate diagram, Operation principle, schematic diagrams, advantages and disadvantages and applications. 

2.2 Reflex klystron and its Applegate diagram, Operation principle, schematic diagrams, advantages and disadvantages and applications. 

2.3 Magnetron, Traveling wave tube (No derivation),Operation principle, schematic diagrams, advantages and disadvantages and applications. 

2.4 Working principle of Gunn ,PIN ,Tunnel ,Impact diode.


Unit-3 Measurement and microwave link

3.1 Measurement of power Bolo meter method, lab method 

3.2 Frequency measurement. 

3.3 VSWR measurement. 

3.4 Impedance measurement. 

3.5 Measurement of attenuation. 

3.6 Wavelength measurement. 

3.7 Microwave link.


Unit– 4 Special Microwave Devices

4.1 Faraday rotation effect, Faraday . rotation isolator 

4.2 Phase shifters (Gyrator) : Gyrator with rectangular wave guide, Gyrator without twist. 

4.3 Circulators: Faraday circulator, Y junction circulator. 

4.4 Directional coupler:- Principle, operation of four port directional coupler, characteristics of directional coupler. Applications.


Unit– 5 RADAR Funamentals

5.1 Basic block diagram of radar system. 

5.2 Radar performance factors: Radar range equation, factors influencing, maximum Range, effect of noise. 

5.3 Basic pulse Radar system: Block Diagram and description. 

5.4 Antenna scanning and Tracking (Definition, types and principle) of Antenna scanning:Horizontal, vertical, helical and spiral. 

5.5 Antenna tracking: Sequential, conical and monopulse. 

5.6 Microwave dish antenna ,feed Mechanism- horn feed and cassegrain Antenna


Unit –6 RADAR Systems

6.1 Doppler effect. 

6.2 Display Methods: A-Scope, PPI Automatic target detection 

6.3 Block diagram, operation and application of CW doppler radar 

6.4 Block diagram, operation and application of FM CW radar 

6.5 Block diagram, operation and application of MTI Radar, concept of blind speed 

6.6 Applications of Radar systems SONAR system