Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 14, Problem 14.26P
To determine
(a)
The required spacing as a function of 'n' and '
To determine
(b)
To prove:
The spacing as found in part a approaches
To determine
(c)
To prove:
An even number of elements is required.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
3) Solve the cutoff frequency for the first mode and second mode of WR975 Wave guide
TABLE 7.1 Some Standard Rectangular Waveguides
Waveguide
de signation
a (in)
b (in)
t (in)
fe, (GHz)
Frequency range (GHz)
WR975
9.750
4.875
0.125
0.605
0.75-1.12
WR650
6.500
3.250
0.080
0.908
1.12–1.70
WR430
4.300
2.150
0.080
1.375
1.70-2.60
WR284
2.840
1.340
0.080
2.08
2.60-3.95
WR187
1.872
0.872
0.064
3.16
3.95-5.85
WR137
1.372
0.622
0.064
4.29
5.85-8.20
WR90
0.900
0.450
0.050
6.56
8.2–12.4
WR62
0.622
0.311
0.040
9.49
12.4–18
The progressive
phase shift k =180,
the direction of the main beam eo for
a uniform linear array with
d = λ is .........
Q. (a)Two nicols are first crossed and then one of them is rotated through 600. Calculate the percentage of incident light transmitted.
Q. (b)Two nicols are oriented with their principal plane making an angle of 600.What percentage of incident unpolarized light will pass through the system?
Q.The signal retrieved in an optical fiber reduces at its output to one-tenth of its input power. What is the overall attenuation? What shall be the power at output in a fiber having loss3 db/km?
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
Knowledge Booster
Learn more about
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
- In TE01 mode of wave propagation in an air-filled rectangular waveguide, if the * broader dimension of the waveguide is 2 cm, then the cutoff frequency is 5 MHz 7.5 MHz non of mentioned 5 GHz 7.5 GHz :If propagation is assumed to be in x direction then TM means that Ex=0 Ez=0 and Hz=0 Hx=0 Non of mentioned Hz=0 Ez=0arrow_forwardThe gain of a paraboloid reflector antenna with circular aperture mouth is 1000 when the frequency is 300 MHz. What will be the diameter of the circuler reflector mouth?arrow_forwardQ2. 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)arrow_forward
- 3- Half power beam width of infinitesimal dipole is a) 45 b) 180 c) 135 d) 90 44arrow_forwardQ2. 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.arrow_forward2. In thermal radiation, when temperature (T) increases, which of following relationship is correct? A. Light intensity (total radiation) increases as I x T. B. Light intensity (total radiation) increases as I x T4. C. The maximum emission wavelength increases as Amax x T. D. The maximum emission wavelength increases as Amax x T4.arrow_forward
- Assuming all other factors remain the same (area & wavelength remain constant), what would be the new gain of a specific parabolic reflector in respect to an isotropic radiator if its diameter increases by three times, given that its original gain is 30dBi?arrow_forward6) Perform the following computations: a) (0.3/0°) + (3Z180°) b) (5Z-45°) + (-4220°) c) (0.05295°) – (0.04Z–20°) а) b) c)arrow_forwardWhich of the following modes cannot propagate in a rectangular waveguide? TE^(01) TM^(11) TM^(10) TE^(11)arrow_forward
- The figure below shows a radio-wave transmitter and a receiver separated by a distance d = 47.0 m and both a distance h = 27.0 m above the ground. The receiver can receive signals both directly from the transmitter and indirectly from signals that reflect from the ground. Assume the ground is level between the transmitter and receiver and a 180° phase shift occurs upon reflection. Determine the longest wavelengths that interfere in the following ways. O Transmitter Receiver (a) constructively (b) destructivelyarrow_forwardQ2) A parallel-plate waveguide is known to have a cutoff wavelength for the m= 1 TE and TM modes of c1= 4.1 mm. The guide is operated at wavelength λ = 1.0 mm. How many modes propagate?arrow_forwardQ2) What is the ratio of the maximum radiation intensity to the average * ?radiation intensity Directivity gain O Aperture gain O Power gain O Transmission gain Oarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Introductory Circuit Analysis (13th Edition)Electrical EngineeringISBN:9780133923605Author:Robert L. BoylestadPublisher:PEARSONDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage LearningProgrammable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
- Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill EducationElectric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSONEngineering ElectromagneticsElectrical EngineeringISBN:9780078028151Author:Hayt, William H. (william Hart), Jr, BUCK, John A.Publisher:Mcgraw-hill Education,
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:9780078028229
Author:Charles K Alexander, Matthew Sadiku
Publisher:McGraw-Hill Education
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:9780134746968
Author:James W. Nilsson, Susan Riedel
Publisher:PEARSON
Engineering Electromagnetics
Electrical Engineering
ISBN:9780078028151
Author:Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:Mcgraw-hill Education,
How does an Antenna work? | ICT #4; Author: Lesics;https://www.youtube.com/watch?v=ZaXm6wau-jc;License: Standard Youtube License