Fundamentals of Electromagnetics with Engineering Applications
1st Edition
ISBN: 9780470105757
Author: Stuart M. Wentworth
Publisher: Wiley, John & Sons, Incorporated
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Question
Chapter 8, Problem 8.18P
To determine
The beam-width of half-power for a half wave dipole antenna.
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What will be the wavelength of a dipole antenna whose effective length is 8.2 m and radiation resistance is 377 ohms?
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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- If the diameter of a parabolic reflector antenna is 1.5 m, then what will be the half power beamwidth of the antenna? Assume the wavelength of radiation to be 0.5 m.arrow_forwardA transmitting dipole antenna has an effective height of 61.4 m and the wavelength of radiation is 625 m. What will be the value of the radiation resistance of the antenna?arrow_forwardA thin dipole antenna having a length of one fifteenth of wavelength has a loss resistance of 2.5 ohm. What will be the antenna efficiency?arrow_forward
- The radiation resistance of a dipole antenna is 377 ohms. Express its effective height as a function of wavelength.arrow_forward6. Design a rectangular patch antenna so that it will resonate at "(X/10)" GHz. The substrate is Rogers 3003 which has dielectric constant of 3 and height 0.75 mm. Take X = 089arrow_forward3) What are the applications of log-periodic dipole antenna?arrow_forward
- What will be the radiation resistance of a dipole antenna whose effective length is 52.5 nm and wavelength of 40 nm?arrow_forward3- The half wave dipole is widely used in more applications compared to other linear antenna lengths, that is because a) It has high gain d) it has small size b) its easy matching to coaxial 75 Ohm cable c) low lossarrow_forwardShow that the directivity of isotropic antenna is 1.arrow_forward
- A pyramidal horn antenna is operating at 200 MHz and has a power gain of 320 and width of 10 cm. Estimate the aperture height.arrow_forward4. Patch antennas are the antennas of small size and are made of : a) Strip line b) Microstrip lines c) Coaxial cables d) Rectangular waveguide 5. of an antenna is a plot of the magnitude of the far field strength versus position around the antenna. a) Radiation pattern b) Directivity c) Beam width d) None of the mentionedarrow_forwardIf the radiation resistance of an areal antenna is 150 ohms, then estimate the effective height of the antenna 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