. 30-dB, right-circularly polarized antenna in a radio link radiates 5-W of powert 2 GHz. The input impedance of this antenna is 75 ohms, and it is attachedɔ a 50-ohm transmission line.The receiving antenna has an impedance mismatch at its terminals, -which leads to a VSWR of 2. The receiving antenna is about 95% efficient andhas a field pattern near the beam maximum given by E, = (2âx + jây) F, (0, 0).The distance between the two antennas is 4,000 km, and the receiving antennaDirectivity is 100. Determine the Minimum powerDelivered to receiving antenna.1

Answered: . 30-dB, right-circularly polarized…

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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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.
4) This MCQ QUESTION FROM ANTENNA ENGINEERING course.
a rectangular air-filled copper waveguide with dimension 2.28 cm x 1.01 cm across section and 30.48 cm length is operated at 9.2 GHz with a dominant mode. Find a)characteristic impedance b) attenuattion in dB
Problem 3. A receiver front end has a noise figure of 10 dB and a gain of 60 dB and a bandwidth of 12 MHz. The input signal power is 10-11 W. The antenna temperature is 180° K. Find Te, Ts, Nout, SNRin and SNRout. You may use To=290° K and Boltzmann's constant equals 1.38 x 10-23 J/K.
An antenna with a radiation resistance of 48 ohms, a loss resistance of 2 ohms, and a reactance of 50 ohms is connected to a generator with open-circuit voltage of 10 V and internal impedance of 50 ohms via a N4-long transmission line with characteristic impedance of 100 ohms. The power radiated by the antenna is ..... .. 0.1384w 0.1384dB 0.148dB 0.148w
Calculate the Antenna Gain (dBi) if the operating frequency is 900 MHz and the Antenna Factor 12.44 (dB/m).
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Design a rectangular microstrip patch antenna, based on the dominant mode, that can be mounted on the roof of a car to be used for satellite cellular telephone. The designed center frequency is 1.6 GHz, the dielectric constant of the substrate is 10.2 (i.e., RT/duroid), and the thickness of the substrate is 0.127 cm. Determine the (a) dimensions of the rectangular patch (in cm) (b) resonant input impedance, assuming no coupling between the two radiating slots (c) mutual conductance between the two radiating slots of the patch (d) resonant input impedance, taking into account coupling (e) position of the feed to match the patch antenna to a 75-ohm line
Antenna subject
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…
Solve the cutoff frequency for the first mode and third mode of WR430 waveguide.
Derive the array factor equation for uniform and non-uniform planar array antenna.

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