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 8.21P
To determine
The directivity and radiation resistance for an arbitrary length dipole antenna using MATLAB.
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What will be the radiation resistance of a dipole antenna whose effective length is 52.5 nm and wavelength of 40 nm?
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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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- The radiation resistance of a dipole antenna is 359 ohms and the antenna is operating at a wavelength of 0.05 meters. What will be the effective length of this dipole antenna? Whatarrow_forward3) What are the applications of log-periodic dipole antenna?arrow_forwardWhat will be the value of the radiation resistance of a monopole antenna of length equal to quarter of wavelength. It is to be noted that the monopole antenna is excited by linear current distribution.arrow_forward
- The radiation resistance of a dipole antenna is 2 ohm. Estimate the length of the dipole antenna in terms of the wavelength.arrow_forwardQ3: For a dipole antenna of 3m long, Io= 2A, determine power radiation, radiation resistance, directivity, HPBW and FNBW if: i. The antenna operating at 75 MHz ii. The antenna operating at 6 MHzarrow_forwardCalculate the radiation resistance of a half-wave dipole antenna if the feedpoint is 0.5 m from one end at 300 MHz.arrow_forward
- Find the maximum power gain for Hertzian dipole antenna with 0.2 m length at frequency of 2.4 GHz. The antenna must have 15 mW/m radiation intensity at elevation angle of 70°.arrow_forwardCompare the quarter-wavelength monopole and half-wavelength dipole in terms of their radiation pattern, directivity and input impedance.arrow_forwardRadiation resistance of a dipole antenna is 4 ohm. Estimate the effective length of the dipole in terms of wavelength of radiation.arrow_forward
- Find the radiation efficieney of a six-turn small circular loop at f=300 MHz, the radius of the toop is 0.32, the radius of the wire is 0.00012, and the turns are spaced 0.0003), apart. Assume the wire is copper with a conductivity of 5.7x10 (S/m) and the antenna is radiating into free space. Then discuss how can improve the radiation efficiency further.arrow_forwardA halfwave dipole with a total conductor length of 1 m is used as a transmit antenna to radiate electromagnetic energy. At a distance of 500 m from this antenna in the direction of maximum radiation, what is the free space path loss (dB)? Consider the end effect of the dipole.arrow_forwardA thin dipole antenna is having an effective length of one fiftinth of its wavelength. What will be the radiation resistance of the thin dipole?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