Electronics and Communication Engineering - Electromagnetic Field Theory
Exercise : Electromagnetic Field Theory - Section 3
- Electromagnetic Field Theory - Section 1
- Electromagnetic Field Theory - Section 2
- Electromagnetic Field Theory - Section 3
- Electromagnetic Field Theory - Section 4
- Electromagnetic Field Theory - Section 5
- Electromagnetic Field Theory - Section 6
- Electromagnetic Field Theory - Section 7
- Electromagnetic Field Theory - Section 8
- Electromagnetic Field Theory - Section 9
- Electromagnetic Field Theory - Section 10
- Electromagnetic Field Theory - Section 11
- Electromagnetic Field Theory - Section 12
- Electromagnetic Field Theory - Section 13
11.
A line of characteristic impedance z0 ohms, phase velocity VP = 2 x 108 m/sec and length l = 2 m is terminated by a load impedance zL Ohms. The reflection coefficients at the input end and load end are respectively
for a frequency of 50 MHz will be

Answer: Option
Explanation:
ri .
12.
When a particular mode is excited in a waveguide, these appears an extra electric components in the direction of propagation. The resulting mode is
13.
An antenna has a gain of 44 dB. Assuming that the main beam of the antenna is circular in cross-section the beamwidth will be
Answer: Option
Explanation:
.
14.
The directive gain of an antenna is given by
15.
In cellphone communication base antennas are connected to other base antennas in
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