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WorksheetsWAVEGUIDES
Total questions: 12
Worksheet time: 6mins
In a wave guide,TE mode means
Magnetic field is perpendicular to the direction of wave propagation
Magnetic field and electric field are perpendicular to each other
Electric field is perpendicular to the direction of wave propagation
None of the above
What is the impedance of most waveguide?
300 ohms
75 ohms
600 ohms
50 ohms
When does a transmission line terminated in a short look
like a short to the source?
at less than 1/2
at quarter wavelength
at less than 1/4
at half wavelength
In a waveguide, the TM mode means that the:
Electric field is perpendicular to the direction of wave propagation
Magnetic and electric fields are perpendicular to each other
Magnetic field is perpendicular to the direction of wave propagation
None of the above
How wide must a waveguide be?
Over wavelegth/2
Over wavelength/4
Less than wavelength/4
Less than wavelength/2
What is the dominant mode in rectangular waveguide?
TE02
TM11
TM01
TE10
The mode at which wave guide operates is determined by the
Shape of the waveguide
Length of the waveguide
Method used to couple the signal to the wave guide
Impedance of the waveguide
A matching stub should be placed _____.
Midway between load and transmitter
Nearest to the load
Nearest to the transmitter
Anywhere
What is meant by a voltage node?
High impedance
Voltage minima
current minima
voltage maxima
Which of the following is not a method of coupling into or out of a wave guide
Probe
Loop
Holes
Slot
What is the characteristic impedance of twin lead?
600W
50W
300W
70W
The standing wave ratio is equal to _____if the
load is properly matched with the transmission line.
10
50
1
2
