Fundamentals of Electromagnetics with Engineering Applications
1st Edition
ISBN: 9780470105757
Author: Stuart M. Wentworth
Publisher: Wiley, John & Sons, Incorporated
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Chapter 8, Problem 8.29P
To determine
The beam-width of half-power for a quarter-wave monopole antenna.
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Chapter 8 Solutions
Fundamentals of Electromagnetics with Engineering Applications
Ch. 8 - Prob. 8.1PCh. 8 - What is the pattern solid angle and the...Ch. 8 - Sketch an appropriate cross section of the...Ch. 8 - Prob. 8.5PCh. 8 - Prob. 8.6PCh. 8 - Prob. 8.7PCh. 8 - Prob. 8.8PCh. 8 - Prob. 8.9PCh. 8 - Prob. 8.10PCh. 8 - Prob. 8.11P
Ch. 8 - Prob. 8.12PCh. 8 - Suppose in the far field for an antenna at the...Ch. 8 - Prob. 8.14PCh. 8 - Prob. 8.15PCh. 8 - Prob. 8.16PCh. 8 - How long is a 1.5 -long dipole antenna at 1.0 GHz?...Ch. 8 - Prob. 8.18PCh. 8 - Prob. 8.19PCh. 8 - Prob. 8.20PCh. 8 - Prob. 8.21PCh. 8 - Prob. 8.22PCh. 8 - Prob. 8.23PCh. 8 - Prob. 8.24PCh. 8 - Prob. 8.25PCh. 8 - Prob. 8.27PCh. 8 - Prob. 8.28PCh. 8 - Prob. 8.29PCh. 8 - Prob. 8.30PCh. 8 - Prob. 8.31PCh. 8 - How long is a 0.75 monopole antenna at 1.0 GHz?...Ch. 8 - Prob. 8.33PCh. 8 - Prob. 8.34PCh. 8 - Prob. 8.35PCh. 8 - Prob. 8.36PCh. 8 - Prob. 8.37PCh. 8 - Prob. 8.38PCh. 8 - Two small loop antennas, each oriented in the xy...Ch. 8 - Prob. 8.40PCh. 8 - Prob. 8.41PCh. 8 - Prob. 8.42PCh. 8 - A particular broadside antenna array consists of...Ch. 8 - Prob. 8.44PCh. 8 - Prob. 8.45PCh. 8 - Prob. 8.46PCh. 8 - Prob. 8.47PCh. 8 - Prob. 8.48PCh. 8 - Design an open-ended shunt-stub matching network...Ch. 8 - Prob. 8.50PCh. 8 - Prob. 8.51PCh. 8 - Prob. 8.52PCh. 8 - Prob. 8.53PCh. 8 - Prob. 8.54PCh. 8 - Prob. 8.55P
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- For a monopole antenna with linearclinear distribution, if the effective length of the monopole is equal to half of wavelength, then estimate the radiation resistance of the monopole.arrow_forwardThe far-field ranges of the wire antenna given in the figure at 5 GHz Find where it started . .arrow_forwardWhat are the near field and far field of an antenna? What are their major differences?arrow_forward
- 1.) If the far field distance of a pyramidal horn antenna at 200 MHz is 3.5 m, what is the width of the antenna, in meters? 2. The near-earth range equation is used by the cell phone industry to determine the maximum range between a cell phone and a repeater. Determine the change in maximum range if the repeater antenna height is increased by a factor of two. step by step and clear thanks.arrow_forwardA monopole antenna is excited using a sinusoidal current distribution. If the antenna is transmitting at a frequency of 10 GHz and length of the antenna is one-fourth of the wavelength, then what will be the value of the radiation resistance of the monopole antenna?arrow_forwardWhat will be the power gain of a parabolic antenna with 10 m diameter dish and a feed of 10 GHz?arrow_forward
- For a dipole antenna, the radiation resistance is 49.35 ohms. Express the effective length of the dipole antenna in terms of wavelength.arrow_forwardConsider an array of four isotropic antennas located at a distance “a” from the center of a coordinate frame as shown in the figure. Assume that all antennas are fed in phase with equal amplitudes. Obtain an expression for the array factor as a function of θ and φ.arrow_forward: Define the following terms: Radiation resistance, Bandwidth, Antenna effective aperture, Directional antenna, Radiation intensity, Poynting vector, Stray factor, EIRParrow_forward
- Sketch the radiation pattern of an isotopic antenna.arrow_forwardAn array antenna has 6 half-wave driven elements that are separated by 1.5m and the resulting radiation is at right angles to the plane of the array. What is the resulting half-power beamwidth (rad) of this array antenna?arrow_forwardFor a dipole antenna, the radiation resistance is given as 523 ohms. What will be the effective length of the dipole? Express with respect to the wavelength.arrow_forward
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How does an Antenna work? | ICT #4; Author: Lesics;https://www.youtube.com/watch?v=ZaXm6wau-jc;License: Standard Youtube License