Antenna And Wave Propagation (KEC603) - AKTU Question Paper 2023-24
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 2023-24. 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:2023-24
University:AKTU / UPTU
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Questions Asked in 2023-24
Antenna And Wave Propagation (KEC603) — extracted question text · 100 marks · 3 Hours
Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 10 = 20
- aIllustrate the gradient of a vect or in cylindrical coordinate system. 02
- bDefine irrotational fields 02
- cDiscuss electric field intensity. 02
- dIllustrate Maxwell’s equation for electric field. 02
- eDiscuss solid angle and beam area 02
- fDescribe the Beam Area of an A ntenna and give the formula. 02
- gExamine the major advantag e of folded dipole antenna. 02
- hEvaluate the maximum range of a tropospheric transmission for which the transmitting antenna height is 100ft and receiving antenna height is 50 ft. i. Determine critical frequency for reflection at vertical incidence if the maximum value of electron density is 1.24*10-6cm-3? j. Evaluate the maximum electron c oncentration of the D layer and E layer has critical frequencies 2.5MHz and 8.4MHz respectively
Section BAttempt any three o f t h e f o l l o w i n g : 3 x 10 = 30
- aEvaluate vector A= ρzsinϕaρ+ 3ρcosϕaϕ+ρsinϕcosϕ azinto Carte sian coordinate system
- bDemonstrate the magnetic f ield due to a finite line conductor having current I. 10
- cDerive antenna temperature a nd its relationship with the signal to noise ratio (SNR) of the given antenna
- dDemonstrate vertical ante nna and folded dipole antennas 10
- eDemonstrate critical fre quency, multihop propagation and skip distance for sky wave propagation
Section CAttempt any one p a r t o f t h e f o l l o w i n g : 1 x 10 = 10
- aDefine a differential length element in vector calculus and explain its significance
- bEvaluate divergence for P= yzax + 4xyay + yaz at point (1, -2, 3). Also evaluate curl for the same and compare results
- aA circular ring of radius 𝑎 carries a uniform charge ρL C/m and is placed on the xy-plane with axis the same as the z-axis. Demonstrate: (a) The electric field due to this ring at a height h along its axis. (b) What value of h gives the maximum value of electric field? If the total charge on the ring is 𝑄. Find electric as radius of the ring tends to zero?
- bDesign a 3 elements yagi-uda A ntenna. Demonstrate the length of elements and the distances between them
- aExplain fields from oscillati ng dipoles. Describe directivity of an antenna and find the relationship between directivity and gain of antenna
- bIllustrate effective aperture and effective height of an antenna. Also discuss antenna temperature
- aEvaluate electric field due to array of two λ/2 driven element when current of equal amplitude and same phase is flowing in antennas
- bDemonstrate the fields of a short dipole. 10
- aIllustrate the skip distance f or region between transmitter and receiver using sky wave propagation, when curvature of earth is taken into consideration
- bDerive equation for maximum us able frequency for both flat and curved earth condition
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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