Microwave Communication Engineering & Systems

Microwave Communication Engineering & Systems

Microwave and millimeter wave devices:

Overview of microwave and millimeter wave vacuum tu be devices, limitations of microwave vacuum tubes, Gyratron vacuum tube devices.

Advances in microwave and millimeter wave solid state devices, Gunn devices, oscillator using Gunn diode, and injection locked oscillators, IMPATT devices, and microwave and mm wave performance of IMPATT.

Other solid state devices like Tunnel diode, BARITT and TRAPAT.

Microwave and mm wave circuits:

Review of scattering matrix concept in the light of vector network analyzer, impedance matching network k, couplers, power dividers, resonators and filters.

Detectors, mixers, attenuators, phase shifters, amplifier and oscillator Ferrite based circuits.

Antennas:

Hertzian dipole, loop antenna, helical antenna, frequency independent antenna: Du0Hamel principle, log spiral and log periodic dipole antenna array.

Babinet principle, waveguide slot antenna, microstrip antenna, horn antenna, parabolic reflector.

Antenna arrays and phased array antenna. Antenna measurement.

Microwave and mm wave propagation.

Overview of basic radio wave propagation mechanisms, Friis transmission formula, plane earth propagation model, troposcatter systems, ionosphere propagation, duct propagation, microwaveradio link and calculation of link budget.

Effect on radio wave propagation due to rain, fog, snow, ice, atmospheric gases, Earth’s magnetic field.