Antenna And Wave Propagation (KEC-603) - AKTU Question Paper 2022-23
B.Tech · Semester 6 · Free PDF Download
This is the official AKTU Antenna And Wave Propagation Previous Year Question Paper for B.Tech Semester 6, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.
Course:B.Tech
Semester:Semester 6
Session:2022-23
University:AKTU / UPTU
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Questions Asked in 2022-23
Antenna And Wave Propagation (KEC-603) — extracted question text
Section AAttempt all questions in brief. 2 x 10 = 20
- aEvaluate points (0, -4, 3) into cylindrical and sp herical coordinate system
- bIllustrate the gradient of a vector in cylindrical coordinate system
- cIllustrate Maxwell’s equation for electric field
- dDiscuss equation of continuity and its application
- eDescribe the Beam Area of an Antenna and give the formula
- fDefine gain and directivity of an antenna
- gDefine radiation resistance of Antenna
- hIllustrate long wire antenna. i. Evaluate the maximum range of a tropospheric trans mission for which the transmitting antenna height is 100ft and receiving antenna height is 50 ft. j. Evaluate the maximum electron concentration of the D layer and E layer has critical frequencies 2.5MHz and 8.4MHz respectively
Section BAttempt any three of the following: 10x3=30
- aEvaluate vector A= ρzsin ϕaρ+ 3 ρcos ϕaϕ+ρsin ϕcos ϕ azinto Cartesian coordinate system
- bDemonstrate boundary conditions for electric fie ld intensity and electric flux density for various types of medium
- cAn antenna has a field pattern given by E( θ)= Cos 2θ for 0 o≤θ≤ 90 o. Evaluate the i. HPBW ii. FNBW iii. Beam Area iv. Draw the pattern showing HPBW and FNBW
- dDemonstrate vertical antenna and folded dipole antennas
- eDemonstrate critical frequency, multihop propaga tion and skip distance for sky wave propagation
Section CAttempt any one part of the following: 10x1=10
- aIllustrate differential length, area and volume in Cartesian coordinates and cylindrical coordinates system with neat sketch
- bEvaluate divergence for P= yz ax + 4xy ay + y az at point (1, -2, 3).Also evaluate curl for the same and compare results
- aDesign a 3 elements yagi-uda Antenna. Demonstrat e the length of elements and the distances between them
- bEvaluate electric filed intensity on a point P d ue to semi-infinite line
- aIllustrate effective aperture and effective height of an antenna. Also discuss antenna temperature
- bDesign a radio communication link for directiona l antennas. Evaluate the power delivered to the receiver if a radio link has a 15W transmitter connected to an antenna of 1.5m 2 at 3 GHz. The receiving antenna has an effective a perture of 0.5m 2and is located at a 15km line of sight distance fro m the transmitting antenna. Assuming lossless, matched antennas
- aEvaluate electric field due to array of two λ/2 driven element when current of equal amplitude and same phase is flowing in antennas
- bDerive expression of electric field due to short dipole
- aDerive equation for maximum usable frequency for both flat and curved earth condition
- bDemonstrate ground wave propagation and space wa ve propagation
Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.
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