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 8.11P
To determine
The curl of
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Antenna and Wave Propagation
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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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- b) Fill in blanks with a suitable answer 1. The bandwidth of an antenna can be broader by increased the... 2. Radiation pattem is . . dime nsional quantity 3. One steradian is equal to . . square degrees 4. The minimum value of the directivity of an antenna is. . 5. The radiation resistance of short dipole is given by... 6. Gain is equal to directivity in case of ... 7. Radiation resistance of antenna is.. .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_forwardComputer aided design has become a common practice for antenna designers. Give two examples of industry standard antenna design software.arrow_forward
- Derive the array factor equation for uniform and non-uniform planar array antenna.arrow_forward2.9. You are an antenna engineer and you are asked to design a high directivity/gain antenna for a space-borne communication system operating at 10 GHz. The specifications of the antenna are such that its pattern consists basically of one major lobe and, for simplicity, no minor lobes (if there are any minor lobes they are of such very low intensity and you can assume they are negligible/zero). Also it is desired that the pattern is symmetrical in the azimuthal plane. In order to meet the desired objectives, the main lobe of the pattern should have a half-power beamwidth of 10 degrees. In order to expedite the design, it is assumed that the major lobe of the normalized radiation intensity of the antenna is approximated by U(0, 4) = cos"(0) and it exists only in the upper hemisphere (0 <0 < x/2,0 <¢ < 2n). Determine the: (a) Value of n (not necessarily an integer) to meet the specifications of the major lobe. Keep 5 significant figures in your calculations. (b) Exact maximum directivity…arrow_forwardFrom an operational point of view, what are the major differences between the Yagi-Uda and the log-periodic antennas? Explain, with the aid of diagrams.arrow_forward
- What is meant by the resolution of an antenna? Also, explain what is meant by transverse elastic wave?arrow_forward[The effect of element spacing on grating lobe location] What is the minimal element spacing distance in a 1-D linear array used for sector scan imaging if the scan is limited to a range of +/- 30 degree? A design requirement specifies that no grating lobes are acceptable in the forward direction (+/- 90 degrees). Express your answer as a fraction of the wavelength.arrow_forwardA 1-MHz carrier with an amplitude of 1 volt peak is modulated by a 1-kHz signal with m=0.5. Sketch the voltage spectrum.arrow_forward
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