AWP Important quetions and Concepts Must Read

UNIT I: ANTENNA FUNDAMENTALS

Radiation pattern

Beam solid angle

Directivity

Gain

Polarization

Reciprocity

Effective aperture

Vector effective length

Antenna temperature.

UNIT II WIRE ANTENNAS AND ANTENNA ARRAYS

Short dipole

Radiation resistance and Directivity

Small loop antennas

Linear Array and Pattern Multiplication

Two-element Array

UNIT III APERTURE ANTENNAS

Uniqueness theorem

Field equivalence principle

Duality principle

Slot antenna

Horn Antenna

Reflector Antenna-Flat reflector

Lens Antenna.

UNIT IV SPECIAL ANTENNAS AND ANTENNA MEASUREMENTS

Rhombic Antenna

Yagi-Uda Antenna

Helical Antenna

Biconical Antenna

Log periodic Dipole Array

Radiation Pattern measurement

Gain and Directivity Measurements

UNIT V RADIO WAVE PROPAGATION

Ground Wave Propagation

Free-space Propagation

Structure of ionosphere

Skip distance

Virtual height

MUF

Effects of earth’s magnetic fields,

Faraday rotation,

Whistlers.

VLSI DESIGN