Welcome to Virtual Labs

Prof. M J Akhtar and Prof. K V Srivastava   

It is quite difficult to perform real time experiments in some specialized areas of engineering, which require sophisticated equipments and skilled manpower. The unavailability of good teachers with required expertise is another bottleneck in this respect. The idea of virtual laboratory is to provide students a chance to perform experiments using the internet and visual aids without having the equipments at their end. The RF and Microwave lab is a good candidate for virtual laboratory as it requires costly equipments such as Ratiometers, Network Analyzers, Waveguides, Resonators etc. as well as skilled and specialized personnel, which most of the institutes cannot afford. The laboratory experience is obviously an important part of Engineering education, which goes a long way in building up good quality engineers. The Virtual lab program presents a unique opportunity to boost the quality of engineering education, deepen understanding, and provide the necessary practical skills to young minds through cost effective outreach and distance learning activities.

List of Simulation Experiments

  • Study of field pattern of various modes inside a rectangular waveguide.

  • Study of field pattern of various modes inside a rectangular waveguide cavity.

  • Measurement of the dielectric constant and loss tangent of materials in microwave frequency band using a rectangular waveguide cavity.

  • Observe the transient phenomenon of terminated coaxial transmission lines in order to study their time domain behaviour.

  • Study the behavior of terminated coaxial transmission lines in frequency domain.

  • Introduction to Smith chart and its application for the unknown impedance measurement.

  • Study the behavior of impedance matching for passive networks using Smith chart.

  • Concept of generalized n-port scattering parameters, and formulation of these parameters into 2-port reflection and transmission coefficients.

  • Find the change in characteristics impedance and reflection coefficients of the transmission line by changing the dielectric properties of materials embedded between two conductors.

  • Introduce the concept of ratio meter, and its significance for the scalar network analyzer.