Topic: Electromagnetics
If a vertical dipole antenna is used in conjunction with a loop antenna for direction finding, the field pattern obtained will be
- A. [Image Option 1: Cardioid]
- B. [Image Option 2: Figure of Eight]
- C. [Image Option 3: Circle]
- D. [Image Option 4: Lobes]
Answer: A. [Image Option 1: Cardioid]
Explanation: The combined radiation pattern of a vertical dipole (which produces a circular omnidirectional pattern) and a loop antenna (which produces a figure-eight pattern) results in a cardioid (heart-shaped) radiation pattern, which is highly useful in direction finding.