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 13.18P
To determine
(a)
The range of frequencies over which no power is transmitted into the region of dielectric constant.
To determine
(b)
Whether the range of frequency obtained in part a will relate to cut-off frequency in either regions for
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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
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?
Why does a discrete spectrum occur?
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
- 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_forwarda. Enumerate all the possible modes that the given waveguide can operate. b. Determine the mode closest to the dominant mode.arrow_forwardWhat is field pattern in a. Rectangular waveguide?b. TE mode in rectangular waveguide?c. TM mode in rectangular waveguide?arrow_forward
- IN rectangular waveguide, we know that in TM mode field, Ez (longitudinal field) is out f phase by 90 degree, why is it?arrow_forwardImagine a two-dimensional system in which a sinusoidal waveform is excited at the exact center of a circular plate. The standing wave pattern is established when the excited wave two-dimensionalwaveforms for a stable equilibrium pattern of constructive and destructive interference with the reflected waves from the edge of the circular plate. Draw what you expect the standing wave patterns to look like in this two-dimensional system for increasing resonant harmonics, n. Explain what characteristics of the oscillating plate affect the value of those resonancefrequencies, and what geometric properties of the plate affect the patterns.arrow_forwardA 50-ohm coaxial cable is terminated by a 10 uH inductor. What is the voltage standing wave ratio if the cable is operated at 1 MHz?arrow_forward
- Electrical Engineering 1a.) What electric and magnetic fields correspond to the TM modes of a 1D ideal metallic waveguide? 1b.) What wave equation or wave equations apply to the TM modes? 1c.) How do you describe a TM plane wave bouncing between the two infinite metallic sheets? 1d.) What wave equation are you solving for the TM modes?arrow_forwardIn photoclectric effect, the number of photoclectrons emitted is proportional to A- intensity of incident beam. B- frequency of incident beam. C- velocity of incident beam. D- work function of photo cathode.arrow_forward*2. If a 1500-kHz radio wave is modulated by a 2-kHz sine-wave tone, what frequencies are con- tained in the modulated wave (the actual AM signal)?arrow_forward
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