Fundamentals of Applied Electromagnetics (7th Edition)
7th Edition
ISBN: 9780133356816
Author: Fawwaz T. Ulaby, Umberto Ravaioli
Publisher: PEARSON
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Chapter 9, Problem 40P
To determine
The ratio
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There is no radial component in the
.... ..... ....
Fresnel field region
Far field region
near field region
An air-filled rectangular waveguide has dimension of 3 cmm9 cm. The mode(s) that can propagate
through the waveguide for an operating frequency of 9 GHz is/ are
TE01 and TE10
TE10 only
TE01, TE10 and TE20
O TE01 and TE20
A rectangular air - filled waveguide has a cross section of 4 cm x 10 cm.
Determine the minimum frequency which can propagation in the waveguide.
Chapter 9 Solutions
Fundamentals of Applied Electromagnetics (7th Edition)
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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- A 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_forwardA rectangular waveguide carries an EM wave, which is having a frequency of 4000 MHz. Astanding wave indicator shows that the wavelength of the wave in the guide is 11.4 cm. What is thecut-off wavelength of the waveguide?arrow_forwardWhat is a waveguide? What is a slab waveguide? What is a planar waveguide? What is thin slab?arrow_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_forwardIn an air line, adjacent maxima are found at 12.5 cm and 37.5 cm. The operating fre- quency is (a) 1.5 GHz (b) 600 MHz (c) 300 MHz (d) 1.2 GHzarrow_forwardBut the phase angle plot does exist. I'm not sure why you are saying it doesn't. Its in my textbook.arrow_forward
- Design a microstrip for a 50 ohms characteristic impedance. Use h=1.6mm epoxiglass substrate. Calculate the the wavelenght of a 2GHz signal in this waveguide.arrow_forwardA rectangular air-filled waveguide has cross-section of 4 cm x 10 cm. Find the minimum frequency which can propagate in the waveguide.arrow_forwardTwo 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?arrow_forward
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