Electronics and Communication Engineering - Satellite Communication - Discussion
Discussion Forum : Satellite Communication - Section 1 (Q.No. 8)
8.
The INTELSAT-IV satellite launched in 1974 had two earth coverage antenna and two narrower-angle antennas subtending 4.5°. The signal from narrow-angle antenna was stronger than that from earth- coverage antenna by a factor of
Discussion:
4 comments Page 1 of 1.
Arjun said:
8 years ago
According to me, Option A is correct.
Dhirendra said:
8 years ago
Please explain it.
Anish said:
9 years ago
Thanks @Ananth.
Ananth said:
9 years ago
For a reflector antenna, the area is simply the projected area. Thus for a circular reflector of diameter D, the area is A = p D2/4 and the gain is,
G = efficiency(pi D / lambda )^2.
pi =3.14.
G = efficiency(pi D / lambda )^2.
pi =3.14.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers