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ESE EC : Electromagnetics Champion Quiz 5
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Question 1
Scattering parameters are more suited than impedance parameters to describe a waveguide junction because
Question 2
Assertion (A): A z-directed rectangular waveguide with cross-sectional dimensions 3 cm x 1 cm will support propagation at 4 GHz.
Reason (R):
Where
is the wavelength
Reason (R):
Where
is the wavelength Question 3
Consider the following statements:
For a rectangular waveguide with dimensions a x b where b is the narrow dimension, small value of b
1. Gives a larger separation between cut-off frequencies of TE01 and TE10 modes.
2. Gives increased attenuation.
3. Limits power handling capabilities because of breakdown field limits.
Which of these statements is/are correct?
For a rectangular waveguide with dimensions a x b where b is the narrow dimension, small value of b
1. Gives a larger separation between cut-off frequencies of TE01 and TE10 modes.
2. Gives increased attenuation.
3. Limits power handling capabilities because of breakdown field limits.
Which of these statements is/are correct?
Question 4
The ratio of the transverse electric field to the transverse magnetic field is called as
Question 5
Inside a waveguide with perfectly conducting walls, any current present is in the form of
Question 6
The cut-off frequency of the dominant mode of a rectangular waveguide having aspect ratio more than 2 is 10 GHz. The inner broad wall dimension is given by
Question 7
In a waveguide, attenuation near the cut-off frequency is
Question 8
A 20 dB directional coupler is shown in the figure
The power output at port 3 will be
The power output at port 3 will be
Question 9
For parallel plane waveguides, which is the mode with lowest cut-off frequency?
Question 10
Which one of the following modes has the highest cut-off wavelength in a rectangular waveguide?
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May 26ESE & GATE EC
