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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 12
46.
A λ/8 section of transmission line is determined of load impedance of (2 - j 5) Ω. If characteristic impedance of line is 10 Ω. Then input impedance of line is
10 Ω
(6.9 + j 7.24) Ω
(1.75 + j 3.098) Ω
(2 - j 5) Ω
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Long distance short wave radio broadcasting based on
line of sight
ionospheric wave
ground wave
skywave
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Many circles are drawn in a Smith chart used for transmission line calculations. The circle shown in the figure represents
unit circles
constant resistance circles
constant reactance circles
constant reflection coefficient circles
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
A loop antenna is a commonly used for
radar
direction finding
satellite communication
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
For transmission line load matching over a range of frequencies, it is best to use a
double stub
balun
single stub of adjustable position
broadband directional coupler
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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