NO AI PLEASE will reject. 10.3 Referring back to the multiple antenna system on p. 456, com-pute the angular separation between successive lobes or principal max-ima and the width of the central maximum.An early interferometricradio telescope at theUniversity of Sydney,Australia (N = 32, A = 21cm, d 7 m, 2 m diameter,700 ft. east-west base line).(W.N. Christiansen)

Answered: 10.3 Referring back to the multiple…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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3.8 An earth station antenna has a circular aperture with a diameter of 6.5 m and an aperture efficiency of 68% at 18.6 GHz. a. Calculate the gain of this antenna and estimate its beamwidth. b. The apertiite elficienes f the antenna is 6-1% at a frequency of 29.0 GHz. Cal- culate the gan of this ntnnrand istihate its beamwidth at 29 GHz. of
From 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.
Please show all steps A parabolic dish antenna has a diameter of 5 meter, operating at 30 GHz frequency.a) What is the effective area Ae of the antenna? b) What is the antenna power gain in ratio and in dBi?
(a) A rectangular waveguide with an inner dimension of (4.0 x 2.0) cm is used for propagating a microwave signal at mode TE11. If the microwave frequency given is 12 GHz, calculate the cut-off frequency, cut-off wavelength, guide wavelength and velocity of the waveguide.
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An attenuator can be made using a section of waveguide operating below cutoff, as shown in theaccompanying figure. If a = 2.286 cm and the operating frequency is 12 GHz, determine the requiredlength of the below-cutoff section of waveguide to achieve an attenuation of 100 dB between the inputand output guides. Ignore the effect of reflections at the step discontinuities.
The focal plane of the OLI instrument on Landsat-8 is roughly 7,000 pixels wide. It consists of 14 detector modules (each 500 pixels wide). Why does the sensor use 14 detector arrays to span the 7,000 pixel width rather than one long array? A. The instrument measures 14 spectral bands, and each one uses a different module. B. It is easier and cheaper to manufacture multiple small arrays rather than one large array. C. Using 14 small arrays provides better spatial resolution than using one large array. D. It is easier to meet the cooling requirement when the focal plane array is divided into smaller pieces.
A radiative Hertzian dipole antenna is made from a copper wire that is 1.0 cm long and 1.0 mm in diameter. The dipole operates at a frequency of 1.0 GHz. Use the skin depth of copper, 1 = 2.09 µm. VTf H00 (a) Determine the radiative resistance, Rrad. (b) Determine the dissipative resistance, Rdiss. (c) Determine the efficiency of the dipole antenna, е.
c) A transmitter has a directivity of 35.5dBi, a radiation efficiency of 0.933 and an rms input power of 40.0dBm at 12.2GHz. A distant receiver has a gain of 24.8dBi. (i) Stating any approximations you make, estimate the maximum radiated power flux at a distance of 50km from the transmitter. (ii) If the receiver detection power limit is -88.2dBm, estimate the maximum range of this wireless link.
1.) If the far field distance of a pyramidal horn antenna at 200 MHz is 3.5 m, what is the width of the antenna, in meters? 2. The near-earth range equation is used by the cell phone industry to determine the maximum range between a cell phone and a repeater. Determine the change in maximum range if the repeater antenna height is increased by a factor of two. step by step and clear thanks.
An air filled rectangular waveguide is installed from RF amplifier to horn antenna as a transmission medium. It operates at frequency of 6 GHz in TE11 mode and the width is twice larger than the height of waveguide. The waveguide is matched with characteristic impedance 400 SQ. Calculate the cut-off frequency, wavelength guide, width and length of waveguide, and cutoff wavelength.
Two X-band 8.2-12.4 GHz rectangular horns, with aperture dimensions of 5.5 cm and 7.4 cm and each with a directivity of 16.3 dB (over isotropic at 10 GHz), are used as transmitting and receiving antennas. Assuming that the input power is 200 mW, the VSWR of each is 1.1. The conduction-dielectric efficiency is 100%, and the antennas are polarization-matched, find the maximum received power when the horns are separated in air by 5 m.

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