MRE (B-TECH Electronics and Communication Engineering 6th)

Section-A

WAVEGUIDES: Introduction, comparison with transmission lines, propagation in

TE & TM mode, rectangular wave guide, TEM mode in rectangular wave guide,

characteristic impedance, introduction to circular waveguides and planar transmission

lines.

Section-B

MICROWAVE COMPONENTS &TUBES: Directional couplers, tees, hybrid ring, Sparameters,

attenuators, cavity resonators ,mixers & detectors, matched Load, phase

shifter ,wave meter, Ferrite devices: Isolators, circulators. Limitation of conventional

tubes; Construction, operation and properties of Klystron amplifier, reflex Klystron,

magnetron, TWT , BWO , crossed field amplifiers.

Section-C

MICROWAVE SOLID STATE DEVICES & MEASUREMENTS: Varactor diode,

Tunnel diode, Schottky diode, GUNN diode, IMPATT, TRAPATT and PIN diodes.

MASER, parametric amplifiers .Power measurement using calorimeter & bolometers

measurement of SWR, frequency , wavelength and impedance. Microwave bridges.

Section-D

RADAR: Block Diagram and operation, Radar Frequencies, Simple form of Radar

Equation, Prediction of Range

Performance, Pulse Repetition frequency and Range Ambiguities, Applications of Radar