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Electronics and Communication Engineering - Microwave Communication

Exercise : Microwave Communication - Section 5
26.
The rotation of direction of E field of a linearly polarized wave passing through a magnetised ferric medium is called
Lorentz rotation
Faraday rotation
Steinmitz rotation
Fleming's rotation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
If air pressure in a rectangular waveguide is increased the maximum power handling capacity
is decreased
is increased
remains the same
may increase or decrease depending on pressure
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
A directional coupler is used to determine
rv
rv and VSWR
L and C
wave velocity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
A square waveguide carries TE11 mode whose axial magnetic field is given by Hz = H0 , where the guide dimensions are in cms. The cut off frequency of the mode is
5 GHz
7.5 GHz
6.5 GHz
8 GHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
For air filled circular waveguides
the attenuation due to imperfect conducting walls is negligible
the attenuation due to imperfect dielectric is negligible
both the attenuation i.e. due to imperfect conducting walls and due to imperfect dielectric are significant
the total attenuation is almost zero
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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