EBK FUNDAMENTALS OF APPLIED ELECTROMAGN
7th Edition
ISBN: 8220100663659
Author: ULABY
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 9.3, Problem 8CQ
What is the physical length of a half-wave dipole operating at (a) 1 MHz (in the AM broadcast band), (b) 100 MHz (FM broadcast band), and (c) 10 GHz (microwave band)?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Give a waveguide example that can support a TEM wave.
Explain the following:a. What is rectangular waveguide field pattern?b. What is the field pattern of TE mode in rectangular waveguide?c. What is the field pattern of TM mode in rectangular waveguide?
8(This MCQ QUESTION FROM ANTENNA ENGINEERING course.)
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...
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
- why TEM mode cannot propagate in a hollow metallic waveguide.?arrow_forward1. Determine the following; (a) What is the wavelength of an 800-MHz signal? (b) What is the wavelength of a 1.9-GHz signal? (c) What is the wavelength of a 38-GHz signal? (d) What is the frequency of a 10-m amateur radio signal? (e) What effect would the ionosphere have on signals at each of the preceding frequencies?arrow_forwardATR works by measuring the changes that occur in an internally reflected IR beam when the beam comes into contact with a sample.. True Falsearrow_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 a rectangular hollow waveguide with side lengths ratio b / a = 1/3, only TE modes will be excited. a. Write the first 5 cutoff frequencies in order of magnitude and indicate the corresponding modes. b. Long edge 6 cm. In what range should the operating frequency be selected to emit only the first mode when receivedarrow_forward1- How does the dish antenna work? A. How are the electromagnetic wave converted to information (music, picture..)? B. How does the receiver select waves that carry only the desired information C. What is the digital signal?arrow_forward
- The maximum peak to peak value of an AM wave is 40 volts and its frequency is 83000000. The peak to peak value of the modulating signal is 9volts and its frequency is 46000. If it is transmitted through an antenna with an internal resistance of 128ohms, Find the following: ..erot carrier Vc 6. Power in side bands Psb [ens 7. Power in upper side band Pusb 8. Total transmitted current It [arrow_forwardProblem 3: a. What is the lowest frequency cut off frequency for a Ka Waveguide band with WR28 dimensions (TE10 mode) b. What is the phase shift per unit length for a Ka band waveguide and a frequency of 30 GHz? c. Make an accurate sketch of the E field and H field inside the TE10 mode waveguide at 30 GHz d. What would be the attenuation per unit length be if the excitation frequency was 10 GHzarrow_forwardthis question related to Optoelectronics and Nanophotonics a) List the wavelength ranges for the three optical communication windows andb) identify their sub bands (all in terms of wavelength). Finally,c) give two examples for the uses of each main optical communication window. d) What is griffin ?What is important?arrow_forward
- b) Fill in blanks with a suitable answer 1. The bandwidth of an antenna can be broader by increased the... 2. Radiation pattem is . . dime nsional quantity 3. One steradian is equal to . . square degrees 4. The minimum value of the directivity of an antenna is. . 5. The radiation resistance of short dipole is given by... 6. Gain is equal to directivity in case of ... 7. Radiation resistance of antenna is.. .arrow_forward2- Directivity is inversely proportional to...... (A) Beamwidth (B) FNBW (C) Beam area (D) HPBW Z so reflection coefficient is 12 4- What determines antenna polarization? (A) The direction of the electric field vector (B) The direction of the radiated wave (C) The direction of the magnetic field vector (D) The frequency of the radiated wave 5- Antennas convert -to- (A) Electrical into electromagnetic (B) electromagnetic into electrical (C) Both A and B (D) None of the thesearrow_forwardWhat will be the radiation resistance of a quarter wave dipole antenna? Please show the calculation in detail. Will give positive feedback.arrow_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:PEARSONDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage LearningProgrammable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
- Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill EducationElectric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSONEngineering 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