-
A beam antenna consists of a dipole one reflector and one director. The velocity factor is 0.90 and antenna is to be cut for a frequency of 150 MHz. The length of the dipole will be—
-
- 0.4 m
- 0.5 m
- 0.9 m
- 1.2 m
Correct Option: C
By calculation as follows
| λ = | |
| velocity factor × f |
| λ = | |
| 0.9 × 150 × 106 |
= 1.8
| Now effective length of dipole = | ⇒ | = 0.9 | ||
| 2 | 2 |
