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 8.25P
(a)
To determine
The length of the dipole antenna.
(b)
To determine
The impedance required to match the antenna.
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A 0.48520λ0 dipole antenna is made to work at 4 GHz. The antenna is then connected to a 12 V voltage source which has an internal resistance of 25 Ω)
a) Make a diagram of the above system,
b) Is an impedance matching circuit needed? If yes, where should the impedance circuit be inserted and make a diagram of the system with the adjusting circuit,
c) How many cm is the length of the dipole antenna above,
d) How much power is emitted when not using the adjusting circuit and
e) How much power is emitted when using the adjusting circuit.
Solve subparts D,E max 20 minutes ASAP
A 37.4W transmitter at 86.7 MHz will be used to establish VHF communication. Determine the maximum distance at which LOS communication is possible if the transmitting and receiving antennas are 51.2 and 24.68 meters tall, respectively. Determine the receiving point's field strength. Earth's radius is 6353 kilometres.
Design a 5-ELEMENT YAGI-UDA antenna for a 545 GHz frequency, with the following contents:a. Operation and its applicationb. Sketch of the actual antenna with its dimensions completelyc. Its computation
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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How does an Antenna work? | ICT #4; Author: Lesics;https://www.youtube.com/watch?v=ZaXm6wau-jc;License: Standard Youtube License