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Total No. of Pages : 02
Total No. of Questions : 08
M.Tech. (ECE) (2018 Batch) (Sem.-2)
ANTENNAS AND RADIATING SYSTEMS
Subject Code : MTEC-103-18
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M.Code: 76259
Time: 3 Hrs.
Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
- Attempt any FIVE questions out of EIGHT questions.
- Each question carries TWELVE marks.
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- a) Describe the radiation mechanism of a single wire antenna.
- b) Explain in detail the current distribution on a thin wire antenna.
- What is an antenna array? What are the reasons for using antenna arrays? Explain in detail the behavior of Broad-side and End-Fire antenna arrays.
- a) Discuss in detail the ground effects in linear wire antennas.
- b) Write a brief note on Micro strip antennas.
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- a) Explain Friis transmission equation in detail.
- b) Derive the expression for the directivity of an n element ordinary end fire linear array.
- a) Describe the significance of uniform amplitude and spacing in linear arrays.
- b) What is the significance of loop antennas? Discuss small circular loop antenna in detail.
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- a) Describe the importance of parabolic reflector antenna in detail.
- b) Explain feeding mechanisms and method of analysis for micro strip antennas.
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- a) Why antenna array is required? Also discuss the concept of super directivity.
- b) Describe in detail the design considerations for linear arrays antennas.
- Write short notes :
- Antenna temperature
- Radiation power density
- Polarization
- Radiation power density
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NOTE : Disclosure of identity by writing mobile number or making passing request on any page of Answer sheet will lead to UMC case against the Student.
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This download link is referred from the post: PTU M.Tech 2nd Semester Last 10 Years 2010-2020 Previous Question Papers|| Punjab Technical University
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