B.TechSemester 62021-22Antenna And Wave PropagationKEC603

Antenna And Wave Propagation (KEC603) - AKTU Question Paper 2021-22

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 2021-22. 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:2021-22

University:AKTU / UPTU

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Questions Asked in 2021-22

Antenna And Wave Propagation (KEC603) — complete question paper

Section AAttempt all q u e s t i o n s i n b r i e f . 2*10 = 20

a
Define irrotational fields. 1
b
Define divergence. 1
c
Discuss electric field intensity. 2
d
Discuss the nature of magnetic flux of lines. 2
e
Discuss solid angle and beam area. 3
f
List the various parameter of principal radiation pattern 3
g
Design a log periodic antenna. 4
h
Examine the major advantage of folded dipole antenna. 4 (i) Determine critical frequency for reflection at vertical inciden ce if the maximum value of electron density is 1.24*10-6cm-3? (j) Illustrate surface wave propagation 5

Section BAttempt any three o f t h e f o l l o w i n g : 10*3 = 30

a
Illustrate Stokes theorem and Divergence Theorem. 1
b
Demonstrate the magnetic field due to a finite line conductor having current I. 2
c
Derive antenna temperature and its relation with the signal to noise ratio (SNR) of the given antenna
d
Analyze Horizontal antennas above a plane ground. 4
e
Demonstrate Skip distance and optimum frequency. 5

Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10*1 = 10

a
Illustrate line, surface and volume integrals. 1
b
Describe the significance of the curl of a vector. 1
a
Demonstrate dielectric –dielectric and dielectric free space boundary conditions for magnetic fields
b
A circular ring of radius 𝑎 carries a uniform charge ρ୐ 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
a
Explain Friss transmission formula mathematically. 3
b
Explain fields from oscillating dipoles. Describe directivity of an antenna and find the relationship between directivity and gain of antenna
a
Demonstrate the fields of a short dipole. 4
b
Demonstrate the radiation pattern of an array of 8 isotropic po int sources separated by λ/2 distance and in phase with the help of pattern multiplication
a
Illustrate the skip distance for region between transmitter and receiver using sky wave propagation, when curvature of earth is taken into consideration
b
Illustrate the expression for refr active index of ionosphere an d critical frequency

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Repeated Questions — KEC603

Questions that appeared in more than one session, found by comparing 3 years of Antenna And Wave Propagation papers (2021-22, 2022-23, 2023-24)

Define irrotational fields. 1