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  #2  
20th July 2018, 04:10 PM
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Re: Radiation and Propagation Question Papers Calicut University

My sister is pursuing 6th Semester of B.Tech Course of Calicut University. The University has released time table for this semester examination. So she wants to download question papers for preparation. She said me to provide question paper of Radiation and Propagation subject, so please give link to me to download question paper of Radiation and Propagation subject of B.Tech 6th Semester Course of Calicut University.
  #3  
20th July 2018, 04:12 PM
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Join Date: Aug 2012
Re: Radiation and Propagation Question Papers Calicut University

As you want to download question paper of Radiation and Propagation subject of B.Tech 6th Semester Course of Calicut University, so here I am providing following question paper:

Calicut University Radiation and Propagation Question Paper:

PART A:
l. Define half power beam width.
2. What is meant by an isotropic radiator?
3. Mention the difference between broad side and end fire array.
4. Design a 3 element Yagi-uda antenna to operate at a frequency of 200
5. Find the maximum distance that can be covered by a space wave, when the antenna heights are 60 mn and 120 m.

PART B:
6. Derive the electric and magnetic field components of an ideal dipole.
7. State and verify reciprocity theorem for antenna.
8. Explain the principle of pattern multiplication.
9. Discuss the radiation pattern of loop antenna.
10. Explain the complementary nature of slot and dipole antenna.
11. Discuss the mechanism of selective fading

PART C:
12 (a) (i) Explain the different types of polarization exhibited by an antenna.
(ii) Discuss the radiation created by monopoles on a finite ground plane.
(b) Explain the following terms with respect to. antenna:
(i). Directivity.
(ii) Effective aperture.
(iii) Directive and power gain.
(iv) Radiation intensity.
(v) Radiation resistance.

13. (a) What is an array factor ? Derive an expression to obtain the direction of pattern maxima and minima for an array of an isotropic sources uniformly excited and equally spaced along a line.
Or
(b) Write short notes on :
(i) Dolph-Tchebysceff array.
(ii) Rectangular array

14. (a) (i) Derive the directivit5r of half wave dipole antenna.
(ii) Explain the construction of V-antenna. Differentiate it from Rhombic antenna.
Or
G) What are the different modes of operation of helical antenna? Explain them in detail.

15. (a) Explain the theory of propagation of electromagnetic waves through the ionosphere.
Or
(b) (i) Draw a 2 ray model of sky wave propagation and explain it in detail. (6 marks)
(ii) Explain the terms: skip distance and maximum usable frequency.


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