McqMate
| 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 |
| 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. | |
View all MCQs in
Antennas and Microwave EngineeringNo comments yet