Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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3) Two half-wave dipole antennas, each with impedance of 7502, are connected in parallel through
a pair of transmission lines, and the combination is connected to a feed transmission line as
shown below:
Zin -
0.32-
-0.22
0.22-
75 92
(Antenna)
75 Ω
(Antenna)
Assume that the pair of transmission lines (blue lines) has a characteristic impedance of 500,
and the feed transmission line (red line) has a characteristic impedance of 1000.
a. Find the input impedance at 0.32 away from the pair of antennas.
b. Assume that a generator with V₂ = 250e//2 and Zg = 500 is connected at 0.32 away
from the pair of antennas. How much average power is delivered to each antenna?
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Transcribed Image Text:3) Two half-wave dipole antennas, each with impedance of 7502, are connected in parallel through a pair of transmission lines, and the combination is connected to a feed transmission line as shown below: Zin - 0.32- -0.22 0.22- 75 92 (Antenna) 75 Ω (Antenna) Assume that the pair of transmission lines (blue lines) has a characteristic impedance of 500, and the feed transmission line (red line) has a characteristic impedance of 1000. a. Find the input impedance at 0.32 away from the pair of antennas. b. Assume that a generator with V₂ = 250e//2 and Zg = 500 is connected at 0.32 away from the pair of antennas. How much average power is delivered to each antenna?
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