59. Arrange the following in the order of decreasing gain:
Choose the correct answer from the options given below:
1. C, B, D, A
2. D, B, C, A
3. D, C, B, A
4. A, B, C, D
Solution:
1. Horn Antenna (D): Highest gain (~10-25 dBi). It is an aperture antenna with high directivity.
2. Yagi-Uda Antenna (C): Medium-High gain (~7-15 dBi). Uses parasitic elements to focus the signal.
3. Dipole Antenna (B): Low gain (2.15 dBi). A basic half-wave resonant antenna.
4. Monopole Antenna (A): Lowest gain. Simplest structure, essentially half of a dipole.
Decreasing Order: Horn (D) > Yagi-Uda (C) > Dipole (B) > Monopole (A)
Correct Option: 3 (D, C, B, A)
Further Reading:
GATE EC Previous Year Papers with Solutions