Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Question
Chapter 13, Problem 13.14P
To determine
The modes will propagate in a parallel plate guide made with glass.
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a. Enumerate all the possible modes that the given waveguide can operate.
b. Determine the mode closest to the dominant mode.
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
For dominant mode propagation in TE mode, if the rectangular waveguide has a broader dimension of 31.14 mm , then the cut-off wave number:
a) 100
b) 500
c) 50
d) 1000
Chapter 13 Solutions
Engineering Electromagnetics
Ch. 13 - The conductors of a coaxial transmission line are...Ch. 13 - Prob. 13.2PCh. 13 - Prob. 13.3PCh. 13 - Find R, L, C, and G for a two-wire transmission...Ch. 13 - Prob. 13.5PCh. 13 - Consider an air-filled coaxial transmission line...Ch. 13 - Pertinent dimensions for the transmission line...Ch. 13 - A transmission line constructed from perfect...Ch. 13 - Prob. 13.9PCh. 13 - Two microstrip lines are fabricated end-to-end on...
Ch. 13 - Prob. 13.11PCh. 13 - Prob. 13.12PCh. 13 - Prob. 13.13PCh. 13 - Prob. 13.14PCh. 13 - For the guide of Problem 13.14, and at the 32 GHz...Ch. 13 - Prob. 13.16PCh. 13 - A parallel-plate guide is partially filled with...Ch. 13 - Prob. 13.18PCh. 13 - Prob. 13.19PCh. 13 - Two rectangular waveguides are joined end-to-end....Ch. 13 - Prob. 13.21PCh. 13 - Consider the TE11 mode in a rectangular guide...Ch. 13 - Prob. 13.23PCh. 13 - Prob. 13.24PCh. 13 - Prob. 13.25PCh. 13 - Prob. 13.26PCh. 13 - Prob. 13.27PCh. 13 - Prob. 13.28PCh. 13 - An asymmetric slab waveguide is shown in Figure...Ch. 13 - A step index optical fiber is known to be single...Ch. 13 - Prob. 13.31PCh. 13 - Prob. 13.32P
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Similar questions
- What are em and he modes? How do they differ from te and tem modes? What is a single mode waveguide and why is it 0th order mode?arrow_forwardFind the VSWR, if the reflection coefficient is 0.8arrow_forwardWhat is the longest wavelength that a 2.5 cm wide waveguide will support in the dominant mode of operation (m = 1)?arrow_forward
- Determine the minimum electron densities corresponding to critical frequencies of 2.5 MHz and 8.5 MHz.arrow_forwardA rectangular waveguide with a horizontal length a = 2 cm and a vertical length b = 1.5 cm is filled with a material with a relative dielectric value of 4. What would be the cutoff frequency for the dominant mode? 3.75 GHz 4 GHz 5 GHz 6.56 GHzarrow_forwardWhat is the fourth mode that can propagate in a hollow and square waveguide?arrow_forward
- 3) Solve the cutoff frequency for the first mode and third mode of WR137 waveguide. TABLE 7.1 Some Standard Rectangular Waveguides Waveguide designation a (in) b (in) t (in) Seo (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 12.4-18arrow_forwardWhat is field pattern in a. Rectangular waveguide?b. TE mode in rectangular waveguide?c. TM mode in rectangular waveguide?arrow_forwardqarrow_forward
- Transmision linesarrow_forwardQ. (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?arrow_forward7. Pyrheliometer is used to measure direct beam radiation and can be used to measure diffuse radiation by using the shading ring True Falsearrow_forward
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