Fundamentals of Applied Electromagnetics (7th Edition)
7th Edition
ISBN: 9780133356984
Author: ULABY
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 10, Problem 2P
A transponder with a bandwidth of 400 MHz uses polarization diversity. If the bandwidth allocated to transmit a single telephone channel is 4 kHz, how many telephone channels can be carried by the transponder?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
I need a detailed solution to a
problem.
The far-zone electric field intensity (array factor) of an end-fire two-element array
antenna, placed along the z-axis and radiating into free-space, is given by
E=cos (cos - 1)
Find the directivity using
(a) Kraus' approximate formula
(b) the DIRECTIVITY computer program at the end of this chapter
Repeat Problem 2.19 when
E = cos
-jkr
0505π
$[
(cos + 1)
(a). Elmax = Cost (case-1)] | max"
= 1 at 8-0°.
0.707 Emax = 0.707.(1) = cos [(cose,-1)]
(cose-1) =
± 0,= {Cos' (2)
= does not exist
(105(0)=
90° = rad.
Bir
Do≈ 4T
ar=2() =
=
Bar
4-1-273 = 1.049 dB
T₂
a. Elmax = cos((cose +1)),
0.707 = cos (Close,+1))
= 1
at 6 = π
Imax
(Cose+1)=== G₁ = cos(-2) does not exist.
Girar=2()=π.
4T
\cos (0) + 90° + rad
Do≈ = +=1.273=1.049dB
IT 2
I need an expert mathematical solution.
The E-field pattern of an antenna. independent of , varies as follows:
0° ≤ 0≤ 45°
E = 0
45°
{1
90°
90° < 0 ≤ 180°
(a) What is the directivity of this antenna?
(b) What is the radiation resistance of the antenna at 200 m from it if the field is equal
to 10 V/m (rms) for Ø
=
0° at that distance and the terminal current is 5 A (rms)?
I need an expert mathematical solution.
The normalized far-zone field pattern of an antenna is given by
E =
{®
(sin
cos)/
0
Find the directivity using
0 ≤ 0 ≤ π and 0≤ 0≤ π/2.
3m2sds2,
elsewhere
Chapter 10 Solutions
Fundamentals of Applied Electromagnetics (7th Edition)
Ch. 10.4 - What are the advantages and disadvantages of...Ch. 10.4 - Prob. 2CQCh. 10.4 - How does the use of antenna polarization increase...Ch. 10.4 - What are the sources of noise that contribute to...Ch. 10.8 - How is the PRF related to unambiguous range?Ch. 10.8 - Explain how the false-alarm probability and the...Ch. 10.8 - Prob. 7CQCh. 10.8 - Prob. 8CQCh. 10 - A remote sensing satellite is in circular orbit...Ch. 10 - A transponder with a bandwidth of 400 MHz uses...
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
- I need an expert mathematical solution. The radiation intensity of an aperture antenna, mounted on an infinite ground plane with perpendicular to the aperture. is rotationally symmetric (not a function of 4), and it is given by sin (7 sin 0) U π sin Find the approximate directivity (dimensionless and in dB) usingarrow_forwardWaveforms v1(t) and v2(t) are given by:v1(t) = −4 sin(6π ×10^4t +30◦) V,v2(t) = 2cos(6π ×10^4t −30◦) V.Does v2(t) lead or lag v1(t), and by what phase angle?arrow_forward7.1 Express the current waveform i(t) = -0.2 cos(6 × 10°1 +60°) mA in standard cosine form and then determine the following: (a) Its amplitude, frequency, and phase angle. (b) i(t) at t=0.1 ns.arrow_forward
- 3. Consider the RC circuit with a constant voltage source shown in the diagram below. The values of the resistor, capacitor, and input voltage are R = 50, C = 10 µF, and V = 6V, respectively. Assume that there is initially no charge on the capacitor before the switch is closed. Vo ↑i(t) R w C When the switch closes at time t = 0, the current begins to flow as a function of time according to the equation i(t) = ioencarrow_forwardQ2. a) A three-phase 415 V, 4-pole, 50 Hz, A-connected induction motor was tested. The obtained results are: (i) (ii) No load test 50 Hz: Blocked rotor test, 10 Hz: DC test: Vnl=415 V, Pnl=1200 W, In=11 A Vbr 10 V, Pbr=1500 W, Ibr=91 A VDC 3 V, IDC=107 A Draw the per-phase equivalent electrical circuit of the motor Draw the circuits for no-load and block-rotor tests and indicate the slip for each of the tests. (iii) Identify the motor parameters (iv) Calculate the motor's starting torque at the rated voltage.arrow_forward4. Consider the RC circuit with a sinusoid voltage source shown in the diagram below. The values of the resistor, capacitor, input voltage amplitude and frequency are R-20012, C-5pF", Vo-10V, and w=500 rad/s, respectively. Assume that the circuit has reached steady state. Vрейте 2 The input voltage can be described using the complex sinusoid function V(t)-Vo and the physical voltage is obtained by taking the real part of V(t). The voltage drop across the capacitor is given by a sinusoid with same the frequency was the input voltage, but a different magnitude and different phase. In complex form, the capacitor's voltage is given by Vc(t)=1+jwRC For the following questions, use the template file Assignment TemplateQ2.m as the starting point for your MATLAB code. (a) (6 marks) Use MATLAB to make a graph that shows the real part of the input voltage source ReV(t)] and the real part of the voltage drop across the capacitor Re[Ve(t)] as a function of time. Choose the time scale so that two…arrow_forward
- Consider the microgrid given in figure 8-56. The positive sequence impedance of the transmission Lines is given in -line diagram (figure 8.5%). The system data are as follows: the one PV generating Station: 2MW, 460V. AC, positive, negative and zero Sequence impedance of each line is equal to 10%. The generator negativ Sequence impedance is equal to the positive Sequence, and the Zero Sequence impedance is equal to half (½) of positiv Sequence impedance. Transformers positive sequence impedance is equal to the negative sequence and equal to the zero sequence impedance Station DC/AC CB Acpu bus CB www S+js 5 1+jlo M 2 T2 SB CB A Jus -3+16 local utilityarrow_forwarda) The current drawn by a single-phase converter is represented by the waveform in the figure below. Use Fourier series analysis to determine an expression for obtaining the rms values of the fundamental and the harmonics of the source current. Hence, express the rms value of the fundamental as well as the first three harmonics of the waveform. i(t) Id - Id π 元 b) Fig. Input current waveform of a single phase bridge rectifier A sinusoidal voltage with a peak value of 300 V is applied to the converter in (a) drawing a square-wave current with a peak value of 15 A. Assuming that the zero crossing of the current waveform is 45° behind that of the input voltage waveform, calculate: (i) the average power drawn by the converter, (ii) the form factor (FF) and ripple factor (RF) (iii) the total harmonic distortion (THD%) of the input current.arrow_forwardTransformer 600 V Transformer L₁ L₂ L3 4 (a) 600 V L₁ L₂ L3 L₁ (b) Figure 3.arrow_forward
- (2 marks) Using Kirchoff's voltage law: V(t) = VR(t) + Vc(t), show that the voltage drop across the resistor is given by the equation VR(t) jwRC 1+jwRC Voearrow_forwardA ferrite ETD44 core type material is to be used in the converter design. If Bmax = 0.52T, and 350 turns of 1.5x10³cm² copper wire is to be wound around the core material to allow a flow of 5A maximum current, compute for the (a) inductor resistance, and the (b) inductance.arrow_forwardDon't use ai to answer I will report you answerarrow_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:PEARSON
Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Programmable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill Education
Electric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSON
Engineering 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