I need an expert's solution to the following questions in a simple manner, without too much explanation. Q1. Choose the correct answer to the following questions: A- If a half-wave dipole operates at 300 MHz & Do = 1.643, what will be its effective area? a) 0.032 m² b) 0.047 m² c) 0.65 m² d) 0.13 m² B- If the magnetic field component of a plane wave in a lossless dielectric is H = 50 sin (2x x 100-6x) az A/m, what will be the wave velocity? a) 1.047 x 10° m/s b) 1.257 x 106 m/s c) 2.50 x 100 m/s d) 3 x 10° m/s C-Reactive near-field region is the region immediately surrounding the antenna, it is assumed: 2D a) r = 0.62 √0³/ b. = 20²/ c) 0.5 √D³/ ST ≤ 20²/ d) none of all D-Helical Antenna is type of a) Aperture antenna b) Lens antenna c) Array antenna d) None of all E- Which of the following lobes of an antenna radiation pattern is 180 out of phase the main lobe? a) Major lobe b) Minor lobe c) Side love d) Back lobe 02. The radiation intensity of an antenna is given by U(e,q) = cos40 sin² for 0≤0≤π/2 and 0 ≤ ≤2. Find the directivity (dimensionless and in dB), and elevation plane half-power beamwidths in degree.

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I need an expert's solution to the following
questions in a simple manner, without too
much explanation.
Q1. Choose the correct answer to the following questions:
A- If a half-wave dipole operates at 300 MHz & Do = 1.643, what will be its effective area?
a) 0.032 m²
b) 0.047 m²
c) 0.65 m²
d) 0.13 m²
B- If the magnetic field component of a plane wave in a lossless dielectric is H = 50 sin (2x x 100-6x) az
A/m, what will be the wave velocity?
a) 1.047 x 10° m/s b) 1.257 x 106 m/s c) 2.50 x 100 m/s d) 3 x 10° m/s
C-Reactive near-field region is the region immediately surrounding the antenna, it is assumed:
2D
a) r = 0.62 √0³/ b. = 20²/ c) 0.5 √D³/ ST ≤ 20²/ d) none of all
D-Helical Antenna is type of
a) Aperture antenna
b) Lens antenna
c) Array antenna
d) None of all
E- Which of the following lobes of an antenna radiation pattern is 180 out of phase the main lobe?
a) Major lobe
b) Minor lobe
c) Side love
d) Back lobe
02. The radiation intensity of an antenna is given by U(e,q) = cos40 sin² for 0≤0≤π/2 and 0 ≤
≤2. Find the directivity (dimensionless and in dB), and elevation plane half-power beamwidths
in degree.
Transcribed Image Text:I need an expert's solution to the following questions in a simple manner, without too much explanation. Q1. Choose the correct answer to the following questions: A- If a half-wave dipole operates at 300 MHz & Do = 1.643, what will be its effective area? a) 0.032 m² b) 0.047 m² c) 0.65 m² d) 0.13 m² B- If the magnetic field component of a plane wave in a lossless dielectric is H = 50 sin (2x x 100-6x) az A/m, what will be the wave velocity? a) 1.047 x 10° m/s b) 1.257 x 106 m/s c) 2.50 x 100 m/s d) 3 x 10° m/s C-Reactive near-field region is the region immediately surrounding the antenna, it is assumed: 2D a) r = 0.62 √0³/ b. = 20²/ c) 0.5 √D³/ ST ≤ 20²/ d) none of all D-Helical Antenna is type of a) Aperture antenna b) Lens antenna c) Array antenna d) None of all E- Which of the following lobes of an antenna radiation pattern is 180 out of phase the main lobe? a) Major lobe b) Minor lobe c) Side love d) Back lobe 02. The radiation intensity of an antenna is given by U(e,q) = cos40 sin² for 0≤0≤π/2 and 0 ≤ ≤2. Find the directivity (dimensionless and in dB), and elevation plane half-power beamwidths in degree.
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