Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Textbook Question
Chapter 10, Problem 10.11P
Two voltage waves of equal amplitude V0, which have different frequencies
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Answer briefly (12) of the following questions:
1) In a lossy transmission line, what is the formula of the propagation constant (y) of the
transmission line?
2) When the transmission line is terminated by an open circuit, what is the value of the
reflection coefficient (TL) and VSWR?
3) When the transmission line is terminated by a matched load, what is the value of the
VSWR?
4) Find the characteristic impedance of the Quarter wave transformer to match 75 2 load
impedance with a 50 2 transmission line.
5) If a transmission line has a characteristic impedance of 47+ j52 2. What is the value of
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6) If the amplitude of the carrier signal is 7V, and the modulation index m=0.8, find the
amplitude of the message signal?
7) Over modulation occurs when signal amplitude is
carrier amplitude.
(equal, greater than, less than)
8) If the highest frequency of the baseband signal is 6 kHz, what is bandwidth of the
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9) In…
at 20 MHz the characteristic impedance of a transmission line is (20-j2) ohm and the propagation constant is (0.01+j0.2.5) per meter. Find the primary constant?
A 502 transmission line is terminated with a 502 resistor on series with a 2 * 10 H inductor. If the
frequency of the operation is 60 10° MHz find the reflection coefficient at the load.
*
Select one:
O a. 0.36e56
О .1
O c.0.45e22
O d. 0.6e 37
Oe. 0
Chapter 10 Solutions
Engineering Electromagnetics
Ch. 10 - The parameters of a certain transmission line...Ch. 10 - A sinusoidal wave on a transmission line is...Ch. 10 - Prob. 10.3PCh. 10 - A sinusoidal voltage V0, frequency , and phase...Ch. 10 - Two voltage waves of equal amplitude V0 and radian...Ch. 10 - A 50 load is attached to a 50-m section of the...Ch. 10 - Prob. 10.7PCh. 10 - An absolute measure of power is the dBm scale, in...Ch. 10 - A 100-m transmission line is used to propagate a...Ch. 10 - Two lossless transmission lines having different...
Ch. 10 - Two voltage waves of equal amplitude V0, which...Ch. 10 - In a circuit in which a sinusoidal voltage source...Ch. 10 - The skin effect mechanism in transmission lines is...Ch. 10 - A lossless transmission line having characteristic...Ch. 10 - Figure 10.29 See Problem 10.15. For the...Ch. 10 - A 100 lossless transmission line is connected to a...Ch. 10 - Determine the average power absorbed by each...Ch. 10 - The line shown in Figure 10.31 is lossless. Find s...Ch. 10 - A lossless transmission line is 50 cm in length...Ch. 10 - (a) Determine s on the transmission line of Figure...Ch. 10 - Prob. 10.21PCh. 10 - Prob. 10.22PCh. 10 - The normalized load on a lossless transmission...Ch. 10 - Prob. 10.24PCh. 10 - Prob. 10.25PCh. 10 - A 75 lossless line is of length 1.2 . It is...Ch. 10 - Prob. 10.27PCh. 10 - The wavelength on a certain lossless line is 10...Ch. 10 - Prob. 10.29PCh. 10 - A two-wire line constructed of lossless wire of...Ch. 10 - In order to compare the relative sharpness of the...Ch. 10 - In Figure 10.17, let ZL=250 and Z0=50. Find the...Ch. 10 - In Figure 10.17, let ZL=100+j150 and Z0=100. Find...Ch. 10 - The lossless line shown in Figure 10.35 is...Ch. 10 - Prob. 10.35PCh. 10 - The two-wire lines shown in Figure 10.36 are all...Ch. 10 - Prob. 10.37PCh. 10 - Repeat Problem 10.37, with, Z0=50 and RL=Rg=25....Ch. 10 - In the transmission line of Figure 10.20, Z0=50,...Ch. 10 - In the charged line of Figure 10.25, the...Ch. 10 - In the transmission line of Figure 10.37, the...Ch. 10 - Figure 10.38 See Problem 10.42. A simple frozen...Ch. 10 - Figure 10.39 See Problem 10.43. In Figure 10.39,...
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- Q2 What is the velocity of signal on a loss-less transmission line (a)1/√LC (b) √LC (c)√L/C (d) √C/Larrow_forwardA transmission line is terminated by a load with admittance Y, = (0.6 + j0.8)/Z,. Find the normalized input impedance at /6 from the load. %3D 3arrow_forward10. The capacitance per unit length and the characteristic impedance of a lossless transmission line are C and Z0 respectively. The velocity of a travelling wave on the transmission line is (a) ZoC (b) 1/(ZoC) (c) Zo/C (d) C/Zoarrow_forward
- 4. A transmission line is terminated in its characteristic impedance as shown below. Explain what happens when the switch is closed Rs = 50 Q Z0= 50 2 R_ = Q 100V V inpul 1. What is expected VSWR for a transmission line with a reflection coefficient of 0.377? What is the input impedance at a point one-eighth wavelength in front of a transmission line with a characteristic impedance of 50 N terminated in an open.arrow_forwardFind out the general solution for a transmission line due to transient voltage,where ,e = f(x-at) + F(x+at)arrow_forwardsolve a and b a. Find the line characteristic impedance value so that the standing wave ratio is 1.5 in a lossless transmission line terminated with a resistive load of 100 ohms. b. A radio transmitter is connected to an antenna with an impedance of 80 + 40i by a coaxial cable with a characteristic impedance of 50 ohms. Since this transmitter with an impedance of 50 ohms can transfer 30W of power to a compatible load, how much power will it transfer to this antenna?arrow_forward
- Question 1 In this homework, you are supposed to design a WBFM generator using Armstrong method. The required WBFM should be able to transmit an audio signal of bandwidth 50HZ to 4kHz. Design an Armstrong indirect FM modulator to generate an FM signal with carrier 100 MHz and Af 200 kHz. A narrowband FM generator with fe = 100 kHz and 4f = 10 Hz is available. Only frequency tripplers are available as frequency multipliers. In addition, an oscillator with adjustable frequency from 22 to 26 MHz is also available for mixing, along with bandpass filters of any specification. Show your work to get full credit (labelled block diagram, complete calculations for local oscillator frequency etc.).arrow_forwardI want a solution for branches A and B, pleaseA) Determine the primary constants, R, L, G, and C for a distortion-less line working at 300 MHz. Given that the line has characteristic impedance, Zo=750, attenuation constant a=0.12Np/m, and wave velocity, v=1.4×10 m/sB) A lossless transmission line used in a TV receiver has a capacitance of 50 pF/m and an inductance of 200 nH/m. Find the characteristic impedance for sections of a line 10 meter long and 500 m long.arrow_forwardHW2: You are using a transmission line with a characteristic impedance of 1002 to transmit a signal with a wavelength of 3m. What is the shortest antenna that would be impedance matched with this line?arrow_forward
- If a transmission line has a characteristic impedance of 90 ohms and a propagation constant of j0.9 1/m, how many ohms will the line's series impedance be at 1 GHz?arrow_forward2. An FM signal is defined as 12 sin(6 x 108 πt + 5 sin 1250 π t). The signal has a total power of 14 W, operating across a 90 2 load. Find d. Power at the carrier and each of the sidebands found in C e. Sketch the signal in the frequency domain with dB on the vertical and frequency on the horizontal.arrow_forwardThe following complex propagation constant equation γ=0.02+j20γ=0.02+j20 represents a transmission line: Select one: a. Without attenuation. b. With attenuation.arrow_forward
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How do Electric Transmission Lines Work?; Author: Practical Engineering;https://www.youtube.com/watch?v=qjY31x0m3d8;License: Standard Youtube License