2) The radiation intensity of an aperture antenna, mounted on an infinite ground plane with zperpendicular to the aperture, is rotationally symmetric (not a function of ), and it is given by:U =[sin(x sin(0))]* sin(0)Find the approximate directivity (dimensionless and in dB) using numerical integration. You aresupposed to provide your numerical integration code as well.

Answered: Image /qna-images/answer/09d1c1d1-2db2-4f7b-8e8d-ae8d42948acb.jpg

Answered: 2) The radiation intensity of an…

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter14: Basic Trigonometry And Vectors

Section: Chapter Questions

Problem 1RQ: 1. Which trigonometric function is used to find the angle if the length of the hypotenuse and of the...

See similar textbooks

Similar questions

2.9. 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…
Prepare a table of values for the change of maximum usable frequency when an incident angle change from 90° to 0° (calculate for every 10 degrees), and plot a graph, assume that the critical frequency is constant at 30MHZ. and give your observation over the graph.
A 15 Ω source is connected to an antenna of impedance of 350 Ω, then the value of VSWR assuming that the source impedance is decreased by 25% is........... Microwave antenna has a wavelength of 0.0363 meters and a directivity 897.Then the maximum effective aperture of the antenna assuming directivity is increased by 50% . (0.0941-0.1411-0.0470-0.1881) A half-wavelength antenna is having a wavelength of 26 meters. Then the inner boundary of the Fresnel region is at a distance of___________ meters.
Q2 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, p) = cos" (0) And it exists only in the upper hemisphere (0 ≤ 0 ≤+2,0≤p≤ 2л). 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 of…
#5
A)-An antenna has the following S-parameter , find the resonant frequency (f.) and the bandwidth (BW). S. -lo d3 - 20-dB -30 dB 1 2. 3. 4. B)-sketch the radiation pattern of a directional antenna indicating the main lobe , side lobes and back lobe , then explain how to calculate the beam width?
1. In an isotropic source, the directivity is unity because No one of them Uo, U and Umax are equal to each other Uo, U and Umax are different from each other 2. If the radiation lobe in a direction different form the intended lobe. the lobe called back lobe Major lobe side lobe 3. If the radiating property of an antenna is best in some directions than in others, this called Omnidirectional Radiator Directional Radiator Isotropic Radiator.
The maximum gain of a horn antenna is +20 dB, while the gainof its firstsidelobe is −15 dB. What is the difference ingainbetweenthe maximum andfirst sidelobe:(a) indB(b) as a ratio of the field intensities.
I hope to write a simple summary so that I can save it because I have exams Difference between Hertz Antennas (half-wave) and Marconi (quarter-wave) Antennas.
An antenna has a gain that is 13 times better than an isotropic antenna. Calculate the gain of this antenna in units of dBi.
An air-filled rectangular waveguide has dimension of 3 cmm9 cm. The mode(s) that can propagate through the waveguide for an operating frequency of 9 GHz is/ are TE01 and TE10 TE10 only TE01, TE10 and TE20 O TE01 and TE20
A parabolic antenna having a circular aperture mouth has a power gain of 1000 for wavelength of 10 cm. What will be the diameter of the aperture?

SEE MORE QUESTIONS

Recommended textbooks for you

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS