2.
The energy inside a waveguide can be described as an electromagnetic wave whose
a.
H lines exist in closed loops.
b.
E and H lines are parallel to the sidewalls.
c.
E lines have maximum amplitude at the sidewalls.
d.
E and H lines are spherical in shape and travel down the center.
3.
Assume that RF energy is injected into a waveguide at a power level of 1,000 watts. If the energy strikes
the wall at a 0, incident angle, how much of the power is dissipated in the walls of the waveguide?
a.
Zero watt
c.
500 watts
b.
250 watts
d.
1,000 watts
4.
Assume that the waveguide shown in figure 67 has the dimensions a = 1.6 centimeters and b = 2.0
centimeters. The wavelength of the lowest frequency that can be propagated through the waveguide is
approximately
a.
1.6 centimeters.
c.
3.9 centimeters.
b.
1.9 centimeters.
d.
4.1 centimeters.
5.
The amount of power a rectangular waveguide can handle is determined by the
a.
a dimension (height) of the waveguide.
b.
b dimension (width) of the waveguide.
c.
method of terminating the waveguide.
d.
length of the waveguide.
6.
For maximum transfer of energy from one end of a waveguide to the other, the dimensions of the
waveguide must be designed so that side
a.
b is equal to 2a.
b.
a is equal to 2b.
c.
a and side b are equal to 1 wavelength.
d.
a and side b are equal to 0.7 wavelength.
7.
A waveguide is being operated in a TM mode when the
a.
field configuration in the waveguide is magnetic.
b.
electric field does not exist inside the waveguide.
344 L2
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