EBK FUNDAMENTALS OF APPLIED ELECTROMAGN
7th Edition
ISBN: 8220100663659
Author: ULABY
Publisher: PEARSON
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Chapter 9, Problem 31P
To determine
The
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Two rectangular waveguides, one of them is an air filled with internal dimension 1? 2 cm2 and the other one is dielectric filled with internal dimension 1? 0.5 cm2. They have the same cut off frequency for the dominant mode. What is the relative permittivity of the dielectric material?
Two Slabs
Two beams of light start together and then hit a slab of two different kinds of material. This will cause one of the beams to get "ahead" of the other; that is, one will emerge from the slab sooner than the other. The beams have a wavelength of 520 nm outside the slabs, and the slab is d = 1.50 microns thick. If the top half of the slab has index of refraction 1.73 and the bottom has index 1.37, by what time interval will one of the beams be ahead of the other once they've gone through the slab?
A beam of light in air hits a stack of three slides with thicknesses of 2d, d and d and refractive indexes of 2n, n
and n, respectively at an incident angle of 60° as seen in the figure.
60
no
2d
2n
n.
What is the angle 0 when the light exits the stack?
O 60°
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O None of these
О 300
O 90°
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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- M.C.Q At higher wavelength , Planck’s law is converted into wein's law rayleigh- jeans law stefan's law Kirchoff's lawarrow_forwardA laser beam with A0 = 550 nm is striking the surface of a pond at an angle of 50°. The pond water has a refractive index of n = 1.39. The incoming laser beam has a total power of 10 mW of which 25% is TE polarised and the rest is TM polarised. What is the amount of total reflected power?arrow_forwardAccording to the book the answer is 29.8arrow_forward
- *:For a certain mode, in a rectangular waveguide, propagation occurs for signals Information are not sufficient to decide O Whose frequency is above the cut off frequency Whose frequency is below the cut off frequency Depending on the dimensions of the waveguide and dielectric O The dominant mode of propagation is preferred with rectangular waveguides * because we can use air as dielectric O it is easier than other modes and leads to smallest dimension of waveguide it is easier than the other modes it leads to smallest dimension of waveguide none of metionedarrow_forwardThe Subject is Electromagnetic II .arrow_forwardA rectangular waveguide has a cross-sectional area of 10cm x 5cm. Which of the following frequencies can propagate inside the waveguide?*1 GHz *1.4 GHz*1.2 GHz *None of the choicesarrow_forward
- An air-filled rectangular waveguide * has dimensions of 6 x 4 cm. Its cut- off frequency for the TE10 mode is 1 GHz O 2.5 GHz O 3 GHz O 5 GHzarrow_forward4. If two coherent light beams can create interference patterns, which of following condition is not required? A. Two beams have the same intensity (1 = 12). B. Two beams have the same frequency (@1 = w2). C. They are not two orthogonally polarized light beams. D. Two beams maintain the phase difference (Ø, - 02 = C). %3Darrow_forwardPlease help with answering this question, please write clearly and explain clearly please, thanks.arrow_forward
- I need the answer as soon as possiblearrow_forwardAir A ray of light is shown being reflected at the surface of a material. If the reflected ray is completely plane polarized, th- index of refraction of the material is approximately O 1.9. O 1.3. O 0.80. O 0.63. O 1.8.arrow_forwardUrgent need answerarrow_forward
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