Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Chapter 14, Problem 14.25P
To determine
(a)
To select:
The appropriate current phasing to achieve maximum radiation along
To determine
(b)
The intensities in the broad side and end fire directions.
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3- The half wave dipole is widely used in more applications compared to other linear antenna lengths,
that is because
a) It has high gain
d) it has small size
b) its easy matching to coaxial 75 Ohm cable
c) low loss
Q2. True or False Questions:
1. In the normal mode, the radiation is perpendicular to the axis of helical antenna.
2. An ideal source in which the power is radiated equally in all directions is called as isotropic radiator.
3. The progressive phase shift of the end-fire array is 90°.
4. The log periodic antenna does not belong to a frequency-independent antenna.
5. The polarization of an electromagnetic wave refers to the orientation of the electric field component of the
wave.
substance:(Antenna and
Propogation)
Q2. True or False Questions:
1. In the normal mode, the radiation is perpendicular to the axis of helical antenna.
2. An ideal source in which the power is radiated equally in all directions is called as isotropic radiator.
3. The progressive phase shift of the end-fire array is 90°.
4. The log periodic antenna does not belong to a frequency-independent antenna.
5. The polarization of an electromagnetic wave refers to the orientation of the electric field component of the
wave.
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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