MICROWAVE ENGINEERING & ANTENNA LABORATORY

In this era of high-speed communication, RF Engineering is one of the major areas of interest. For understanding the wireless communication in the microwave frequency bands this lab provides the fundamental background. Equipment available in this lab provides sufficient facility to carry out the related labs mentioned in the course curriculum and also research facilities for the undergraduate students.

Name of Important Equipments

1. 25 MHz Dual channel C.R.O.
2. Antenna Trainer Kit
3. Transmission Line Trainer Kit
4. X-band Horn Antenna test bench
5. Gunn Diode based microwave waveguide test bench (X-band)
6. Reflex Klystron based microwave waveguide test bench (X-band)
7. 200MHz D.S.O.
8. 30MHz Function Generator
9. VSWR Meter

List of Experiments

Microwave Engineering & Antenna Lab (EC-591)

1. Study the Stationary Waves in a Transmission Line.
2. Measurement of input & load impedance of a terminated waveguide using shift in minima technique.
3. Study of Radiation pattern and measurement of beam width of a Simple Dipole antenna.
4. Study of Radiation pattern and measurement of beam width of a Folded Dipole antenna.
5. Study of Radiation pattern and measurement of beam width of a Yagi-Uda antenna.
6. Study of Radiation pattern and measurement of Gain & Beam width of a Horn antenna using Rectangular Wave Guide.
7. Study the variation of power output and frequency of a reflex klystron with the repeller voltage.
8. Study of the characteristics of Gunn Diode Oscillator.
9. Measurement of Coupling factor, Directivity, Isolation, and Insertion loss of a multi-hole Directional Coupler using microwave test bench.
10. Study the properties of a magic tee using X-band waveguide test bench.

Safety Measures

• In case of fire, use the nearest available fire extinguisher.
• In case of overheating in klystron/Gunn diode, turn off the power supply immediately.
• Work on microwave devices should be done only after the power has been shut off in such a manner that it cannot be turned on accidentally.
• If the power cannot be turned off, use only one hand when working on it. This will prevent a circuit from going through your heart, which could be potentially fatal.
• Avoid contacting microwave circuits with wet hands or wet materials.
• Avoid leakage of microwave radiation from the waveguides.
• Do not use any outside microwave device including mobile phones to avoid unwanted interference.
• Do not use highly flammable liquids near electrical equipment.
• Do not bring any edibles to the lab.