Question
In which direction does a half-wave dipole antenna radiate the strongest signal?
Answer Options
- A) Equally in all directions
- B) Off the ends of the antenna
- C) In the direction of the feed line
- D) Broadside to the antenna
Correct Answer: D
Explanation
A half-wave dipole antenna is a fundamental radiator that is not omnidirectional (it does not radiate equally in all directions). Its radiation pattern is perpendicular to the wire elements.
Therefore, the dipole radiates the strongest signal broadside to the antenna (meaning off the sides, at a 90-degree angle to the wire). It radiates the weakest signal directly off the ends of the wire. This pattern gives the dipole a slight gain advantage over an isotropic radiator (T9A11).
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