Engineering Electromagnetics
9th Edition
ISBN: 9781260029963
Author: Hayt
Publisher: MCG
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Chapter 14, Problem 14.12P
Find the zeros in
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Chapter 14 Solutions
Engineering Electromagnetics
Ch. 14 - A short dipole-carrying current I0 cos t in the az...Ch. 14 - Prepare a curve, r vs. in polar coordinates,...Ch. 14 - Prob. 14.3PCh. 14 - Write the Hertzian dipole electric field whose...Ch. 14 - Prob. 14.5PCh. 14 - Prob. 14.6PCh. 14 - Prob. 14.7PCh. 14 - Prob. 14.8PCh. 14 - A dipole antenna in free space has a linear...Ch. 14 - Prob. 14.10P
Ch. 14 - A monopole antenna extends vertically over a...Ch. 14 - Find the zeros in for the E-plane pattern of a...Ch. 14 - Prob. 14.13PCh. 14 - For a dipole antenna of overall length 2l=,...Ch. 14 - Prob. 14.15PCh. 14 - Prob. 14.16PCh. 14 - Consider a lossless half-wave dipole in flee...Ch. 14 - Prob. 14.18PCh. 14 - Prob. 14.19PCh. 14 - A two-element dipole array is configured to...Ch. 14 - Prob. 14.21PCh. 14 - Prob. 14.22PCh. 14 - Prob. 14.23PCh. 14 - Prob. 14.24PCh. 14 - Prob. 14.25PCh. 14 - Prob. 14.26PCh. 14 - Consider an n-element broadside linear array....Ch. 14 - A large ground-based transmitter radiates 10 kW...Ch. 14 - Signals are transmitted at a 1-m carrier...Ch. 14 - Prob. 14.30P
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- A 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 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, Solve Subparts A,B,C in 25 minutes ASAParrow_forwardThe normalized radiation intensity of a given antenna is given by(a) U = sin θ sin φ (b) U = sin θ sin2 φ(c) U = sin θ sin3 φ (d) U = sin2 θ sin φ(e) U = sin2 θ sin2 φ (f) U = sin2 θ sin3 φThe intensity exists only in the 0 ≤ θ ≤ π, 0 ≤ φ ≤ π region, and it is zeroelsewhere. Find the(a) exact directivity (dimensionless and in dB).(b) azimuthal and elevation plane half-power beamwidths (in degreearrow_forward
- What will be the wavelength of a dipole antenna whose effective length is 8.2 m and radiation resistance is 377 ohms?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_forwardA parabolic antenna system is having a dish diameter of 10 m and the feed is connected at 10 GHz. What will be the value of the gain of the antenna?arrow_forward
- If a parabolic antenna is equipped with a 10 m diameter dish, then what will be the first null beamwidth of the antenna is the wavelength of radiation is 0.005 m?arrow_forwardIf the diameter of a parabolic reflector antenna is 1.3 m, then what will be the half power beamwidth of the antenna? Assume the wavelength of radiation to be 0.2 m.arrow_forwardFor a dipole antenna, the radiation resistance is 49.35 ohms. Express the effective length of the dipole antenna in terms of wavelength.arrow_forward
- A 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_forwardFor an Omni-directional antenna, the measurements show the Half Power Beam Width (HPBW) in vertical and horizontal planes are 30 degree and 20 degree respectively. If this antenna has a loss resistance of 25ohm and efficiency n=0.8, calculate:i. Antenna’s gain in dB;ii. Radiation resistanceiii. How the efficiency of this antenna can be improved? Support your answer with applicable equations and results.arrow_forwardA pyramidal horn antenna with aperture dimensions of 9 ×8 cm and operating at 5 GHz. What will be the directivity of the antenna?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