A half-wave dipole antenna is excited by a sinusoidally varying current with an amplitude Io = 2 A at 1 GH z. (a) Determine the time average power radiated by the dipole. (b) Determine the pattern solid angle Np. (c) If the half-wave dipole is connected to a 50 SN transmission line, and considering the antenna has a radiation resistance (Rrad) of 73 N and radiation efficiency (E) of 1, determine the standing wave ratio (S) on the line. Answer : (a) Prad = 146 W (b) Sp 8.377 sr. (c) S =

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A half-wave dipole antenna is excited by a sinusoidally varying current with an amplitude Io = 2 A at 1 GHz.
(a) Determine the time average power radiated by the dipole.
(b) Determine the pattern solid angle 2p.
(c) If the half-wave dipole is connected to a 50 N transmission line, and considering the antenna has a radiation resistance (Rrad) of 73 N and
radiation efficiency (E) of 1, determine the standing wave ratio (S) on the line.
Answer :
(а) Ргad %3D 146
W
(b) Np = 8.377
%3D
sr.
(c) S =
Transcribed Image Text:A half-wave dipole antenna is excited by a sinusoidally varying current with an amplitude Io = 2 A at 1 GHz. (a) Determine the time average power radiated by the dipole. (b) Determine the pattern solid angle 2p. (c) If the half-wave dipole is connected to a 50 N transmission line, and considering the antenna has a radiation resistance (Rrad) of 73 N and radiation efficiency (E) of 1, determine the standing wave ratio (S) on the line. Answer : (а) Ргad %3D 146 W (b) Np = 8.377 %3D sr. (c) S =
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