Electromagnetics and antennas
Previous year question paper with solutions for Electromagnetics and antennas
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- What is meant by virtual height in radio wave propagation?
- What is need for an antenna array? Distinguish : Broadside and End fire array.
- Define phase centre of a horn antenna.
- Outline the principle of working of a phased array.
- Outline the properties of a uniform plane wave.
- State Babinet’s principle and specify where it is applied.
- Under what circumstances duct propagation will be effective? Give reasons for your answer
- What is distortion less condition?
- Write Maxwell’s Equation in integral form.
- Define Polarization.
- Define wave.
- What are the applications of smith chart?
- What is distortion less condition?
- What is Babinet’s principle?
- What is the effect of earth’s magnetic field?
- Differentiate between near field and far field.
- What is the disadvantage of binomial array?
- Differentiate between dominant and evanescent mode.
- What is surface impedance?
- Why waveguide acts as high pass filter?
- A lossless transmission line having characteristic impedance 400 ohm is terminated by a resistance of 200 ohm. Calculate VSWR of line.
- Show that displacement current in a capacitor is equal to conduction current.
- What is the difference between wave impedance and characteristic impedance?
- What is difference between induction and radiation field. Calculate the distance at which these fields become equal in magnitude.
- What is Retarded vector potential?
- Define Skip distance.
- What are reflector antennas?
- What is difference between directive gain and directivity of antenna?
- What is difference between antenna bandwidth and Beam width?
- Differentiate between TE and TM wave.
- What is the significance of duct propagation?