πŸ“Š Antennas and Microwave Engineering
Q. A rectangular horn antenna has an aperture area of 3λ × 2λ. Then the maximum directivity that can be achieved by this rectangular horn antenna is:
  • (A) 24 db
  • (B) 4 db
  • (C) 19 db
  • (D) insufficient data
πŸ’¬ Discuss
βœ… Correct Answer: (C) 19 db

Explanation: given the aperture dimensions of an antenna, the maximum directivity that can be achieved is 4π a/λ2, where a is the aperture area and λ is the operating wavelength. substituting the given values in the above equation, the maximum directivity achieved is 19 db.

Explanation by: Mr. Dubey
given the aperture dimensions of an antenna, the maximum directivity that can be achieved is 4π a/λ2, where a is the aperture area and λ is the operating wavelength. substituting the given values in the above equation, the maximum directivity achieved is 19 db.

πŸ’¬ Discussion

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