Engineering Electromagnetics
9th Edition
ISBN: 9781260029963
Author: Hayt
Publisher: MCG
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Chapter 14, Problem 14.4P
Write the Hertzian dipole electric field whose components are given in Eqs. (15) and (16) in the near zone in free space where kr << 1. In this case, only a single term in each of the two equations survives, and the phases,
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d) Based on Figure Q5 (d), answer the following questions:
i. Briefly discuss the process that occurs from point 1 to 2 by illustrating the dipole
arrangement.
ii. Suggest one (1) application in electronic devices that is based on this loop and
state your reason.
B+
Remanent
Flux
Density
H-
H+
Coersive
Force
Fig. Q5 (d): Hysteresis loop which B is the Magnetic Flux Density and H is
the Magnetizing Force.
1. Drive the exact E field produced by an infinitesimal dipole located at the origin with
a z-directed current of strength I and length 4z. (hint: 2 = cosef - sine )
c) Write a relationship that relates the electric and magnetic fields in the far
field region of an antenna.
d) What is meant by the polarization of an antenna?
e) What is the phase velocity of a coaxial cable that has a dielectric of &
=10 separating the inner and out conductors.
Chapter 14 Solutions
Engineering Electromagnetics
Ch. 14 - A short dipole-carrying current I0 cos t in the az...Ch. 14 - Prepare a curve, r vs. in polar coordinates,...Ch. 14 - Prob. 14.3PCh. 14 - Write the Hertzian dipole electric field whose...Ch. 14 - Prob. 14.5PCh. 14 - Prob. 14.6PCh. 14 - Prob. 14.7PCh. 14 - Prob. 14.8PCh. 14 - A dipole antenna in free space has a linear...Ch. 14 - Prob. 14.10P
Ch. 14 - A monopole antenna extends vertically over a...Ch. 14 - Find the zeros in for the E-plane pattern of a...Ch. 14 - Prob. 14.13PCh. 14 - For a dipole antenna of overall length 2l=,...Ch. 14 - Prob. 14.15PCh. 14 - Prob. 14.16PCh. 14 - Consider a lossless half-wave dipole in flee...Ch. 14 - Prob. 14.18PCh. 14 - Prob. 14.19PCh. 14 - A two-element dipole array is configured to...Ch. 14 - Prob. 14.21PCh. 14 - Prob. 14.22PCh. 14 - Prob. 14.23PCh. 14 - Prob. 14.24PCh. 14 - Prob. 14.25PCh. 14 - Prob. 14.26PCh. 14 - Consider an n-element broadside linear array....Ch. 14 - A large ground-based transmitter radiates 10 kW...Ch. 14 - Signals are transmitted at a 1-m carrier...Ch. 14 - Prob. 14.30P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Consider a finite line charge of length L and linear charge density λ that lies along the dipole axis of an ideal dipole with dipole moment p →. The end of the line charge nearest to the dipole is at a distance d from the center of the dipole. Draw a clearly labelled Figure showing the setup. Calculate the electrical force between the two. Show all work in clear steps with justification. Show that the force reduces to an expected result when d >> L. Show all work in clear steps with justification.arrow_forwardi need to 4...5...6arrow_forwardA thin conducting wire is bent into the shape shown in the figure. The circular portion of the wire has radius 16.0 cm. The wire is in the plane of the screen and carries a current 3.50 A. What is the magnetic field at the center of the loop? (Give the magnitude in μT and select the direction from the options provided.) magnitude direction I -Select--- uT R 3arrow_forward
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- This is a practice problem from an electromagnetics course. Could you please explain the process of solving this? Thank you for your assistance.arrow_forwardFind the y and z components of magnetic dipole moment at the minimum potential energy position? y component of the dipole moment Give your answer to at least three significance digits.z component of the dipole moment Give your answer to at least three significance digits.arrow_forwardIt is described in the electrical field of an electromagnetic wave propagating over a conductive medium. The electrical field amplitude of this electromagnetic wave is directed outward from the plane of the paper (choose this direction as z). Draw the shape? Derive the amplitude and phase angle expressions? Please describe every action you take with your own comment? Plot magnetic field amplitude expression as a function of time.?arrow_forward
- m 2. Given a current I(t) = I charge as a function of time of the charge is Qm. sin(at + ) on a Hertzian dipole antenna, what is the Q(t) on the antenna? Assume the maximum amplitudearrow_forwardFind the electric field in terms of spherical coordinates given as the potential to be created by an electric dipole. Within the potential expression, what are the terms, write the units, write the unit of V. Draw the shape of this dipole system and show the places on the figure where the load can be.arrow_forwardThe total dipole moment may reach a significant magnitude as a result of random .orientation True Falsearrow_forward
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