The input reactance of an infinitesimal linear dipole of length A/60 and radius a=A/200is given byXin = – 120[In(€/a) — 1]tan(ke)Assuming the wire of the dipole is copper with a conductivity of 5.7 x 10' S/m,determine at f = 1 GHz the(a) loss resistance(b) radiation resistance(c) radiation efficiency(d) VSWR when the antenna is connected to a 50-ohm line

Answered: The input reactance of an infinitesimal…

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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Problem 3: a. What is the lowest frequency cut off frequency for a Ka Waveguide band with WR28 dimensions (TE10 mode) b. What is the phase shift per unit length for a Ka band waveguide and a frequency of 30 GHz? c. Make an accurate sketch of the E field and H field inside the TE10 mode waveguide at 30 GHz d. What would be the attenuation per unit length be if the excitation frequency was 10 GHz
2- Directivity is inversely proportional to...... (A) Beamwidth (B) FNBW (C) Beam area (D) HPBW Z so reflection coefficient is 12 4- What determines antenna polarization? (A) The direction of the electric field vector (B) The direction of the radiated wave (C) The direction of the magnetic field vector (D) The frequency of the radiated wave 5- Antennas convert -to- (A) Electrical into electromagnetic (B) electromagnetic into electrical (C) Both A and B (D) None of the these
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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.
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