EBK FUNDAMENTALS OF APPLIED ELECTROMAGN
7th Edition
ISBN: 8220100663659
Author: ULABY
Publisher: PEARSON
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Chapter 9.2, Problem 5CQ
To determine
The representation of the pattern solid angle.
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Please answer 1 and 2 on the end
Determine the figure of merit for both DSB AM and FM, provided that the modulating signal is a single-tone signal.
+
Preemphasis
LHS
R
signal
L RHS
signal
Frequency
doubler
Pilot
tone
(a)
+
Preemphasis
Composite
baseband
spectrum
L+R
Pilot tone
L-R
(DSB-SC)
+
FM
modulator
f (kHz)
(b)
15 19 23
38
53
Lowpass
filter
Deemphasis
+
L
Audio
amplifier
FM
discriminator
Narrowband
filter
Frequency
doubler
Bandpass
R
Audio
✗
Deemphasis
+
filter
amplifier
(c)
and (c) FM stereo receiver.
FIGURE A.25 FM stereo broadcasting: (a) FM stereo transmitter, (b) spectrum of FM stereo signal,
Chapter 9 Solutions
EBK FUNDAMENTALS OF APPLIED ELECTROMAGN
Ch. 9.1 - What does it mean to say that most antennas are...Ch. 9.1 - What is the radiated wave like in the far-field...Ch. 9.1 - In a Hertzian dipole, what is the underlying...Ch. 9.1 - Outline the basic steps used to relate the current...Ch. 9.1 - A 1 m long dipole is excited by a 5 MHz current...Ch. 9.2 - Prob. 5CQCh. 9.2 - What is the magnitude of the directivity of an...Ch. 9.2 - An antenna has a conical radiation pattern with a...Ch. 9.2 - Prob. 3ECh. 9.3 - What is the physical length of a half-wave dipole...
Ch. 9.3 - How does the radiation pattern of a half-wave...Ch. 9.3 - How does the radiation efficiency of a...Ch. 9.3 - Prob. 4ECh. 9.3 - Prob. 5ECh. 9.5 - Prob. 6ECh. 9.5 - At 100 MHz, the pattern solid angle of an antenna...Ch. 9.6 - If the operating frequency of the communication...Ch. 9.6 - Prob. 9ECh. 9.6 - Prob. 10ECh. 9.8 - Verify that Eq. (9.86) is a solution of Eq. (9.85)...Ch. 9.8 - Prob. 12ECh. 9.8 - What condition must be satisfied in order to use...Ch. 9.8 - Derive an expression for the array factor of a...Ch. 9.8 - Prob. 15ECh. 9.11 - Prob. 11CQCh. 9.11 - Prob. 12CQCh. 9.11 - Prob. 13CQCh. 9.11 - Prob. 14CQCh. 9.11 - Prob. 15CQCh. 9 - A center-fed Hertzian dipole is excited by a...Ch. 9 - A 50 cm long center-fed dipole directed along the...Ch. 9 - Prob. 3PCh. 9 - Determine the following: (a) The direction of...Ch. 9 - Repeat Problem 9.4 for an antenna with...Ch. 9 - A 2 m long center-fed dipole antenna operates in...Ch. 9 - Repeat Problem 9.6 for a 20 cm long antenna...Ch. 9 - Prob. 9PCh. 9 - An antenna with a radiation efficiency of 90% has...Ch. 9 - Prob. 11PCh. 9 - The normalized radiation intensity of a certain...Ch. 9 - Repeat Problem 9.6 for a 1 m long half-wave dipole...Ch. 9 - Prob. 14PCh. 9 - A 50 cm long dipole is excited by a sinusoidally...Ch. 9 - Prob. 16PCh. 9 - For a dipole antenna of length l = 3/2, (a)...Ch. 9 - Prob. 18PCh. 9 - Prob. 19PCh. 9 - Prob. 20PCh. 9 - A car antenna is a vertical monopole over a...Ch. 9 - Determine the effective area of a half-wave dipole...Ch. 9 - A 3 GHz line-of-sight microwave communication link...Ch. 9 - A half-wave dipole TV broadcast antenna transmits...Ch. 9 - A 150 MHz communication link consists of two...Ch. 9 - Consider the communication system shown in Fig....Ch. 9 - The configuration shown in Fig. P9.27 depicts two...Ch. 9 - Prob. 28PCh. 9 - The configuration shown in Fig. P9.29 depicts a...Ch. 9 - Prob. 30PCh. 9 - Prob. 31PCh. 9 - A uniformly illuminated rectangular aperture...Ch. 9 - An antenna with a circular aperture has a circular...Ch. 9 - Prob. 34PCh. 9 - Prob. 35PCh. 9 - Prob. 36PCh. 9 - Prob. 37PCh. 9 - Prob. 38PCh. 9 - Prob. 39PCh. 9 - Prob. 40PCh. 9 - Find and plot the normalized array factor and...Ch. 9 - Prob. 44PCh. 9 - A three-element linear array of isotropic sources...Ch. 9 - An eight-element linear array with /2 spacing is...Ch. 9 - A linear array arranged along the z axis consists...
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- 4-3) Similar to Lathi & Ding, Prob. P.4.2-3 For a DSB-SC signal g(t) = 2m(t)cos(4000) transmitting each of the following messages, (a) write an expression for G(f) and (b) sketch the magnitude spectrum |G(f)], specifying the FWHM (full width at half-maximum) of any spectrum peaks. a) m(t) = sinc²(100-50л) b) m(t)=400e-80,000r²arrow_forward4-2) Lathi & Ding, similar to problem 3.8-5. For the filter shown below, with an input signal whose PSD is given by S⭑(f) = П(0.25лf): (a) Find the total input power; (b) Find the transfer function H(f); (c) Find the power spectral density (PSD) of the output signal; (d) Find the total output power of the signal 500 ΚΩ d 1 µF dt y(t)arrow_forward4-1) Distortionless transmission A bandpass signal g(t) of bandwidth B = 2000 Hz centered at f= 5.0x104 Hz is passed through the RC filter below with RC = 4.0x105 radians/s. If over the passband, a variation of less than 2% in both amplitude response and time delay is considered to be distortionless transmission, would g(t) be transmitted without distortion? Find the approximate magnitude response and the approximate time delay for the signal. R w g(1) y(t)arrow_forward
- Fundamentals Of Energy Systems THQ1 Q6arrow_forwardA single phase has two group A and B, 50 Hz, overhead line system has radius of conductor 0.5 cm. alculate the total inductance of the line. a2 a1 6 cm 2 m 3m b₂ m B b₁arrow_forwardA single phase has two group of conductors A & B; where A consists of 3- sub conductors (a, b, c) each of its have a radius of 0.25 cm, and the group B consists of two sub conductors (d, e) each of its have a radius of 0.5 cm. Calculate the inductance of the total system where the distance between the sub conductors is as below. 9m 6m 6m ୦୩ Group A Group Barrow_forward
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