Electronics and Communication Engineering - Satellite Communication - Discussion

Discussion Forum : Satellite Communication - Section 1 (Q.No. 11)
11.
To make antenna more directional, either its size must be increased or
the number of its feed horns must be increased
the frequency of its transmission must be increased
its effective isotropic radiated power (EIRP) must be increased
its footprint must be increased
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Saloni said:   9 years ago
Directivity of any antenna is directly proportional to square of frequency of transmission.

Namrann said:   9 years ago
To make an antenna more directional, it must have a small or narrow beam width. Since beam width is directional to "lambda" or wavelength, that means it is inversely proportional to the frequency. Therefore, increasing its frequency will give it a narrow beam width thus, making the antenna more directional.
(1)

Sachin said:   9 years ago
Because as you raised the size of antenna there may be an issue of its maintain and it is not possible to tackle such a big antenna.

So therefore, to reduced the size of antenna there is a need to raise its frequency.

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