What are common antenna configurations in wireless systems?

What are common antenna configurations in wireless systems?

• A. Omni-directional or directional
• B. Parabolic or patch
• C. Circular or square
• D. Internal or external

Answer: (A)

Antenna configurations in wireless systems are defined by how the antenna radiates energy, i.e., its radiation pattern. The main distinction is between omni-directional and directional. Omni-directional antennas emit energy more or less evenly in all directions around the antenna, providing broad, circular coverage (often with a focus in the horizontal plane). This is common for access points or base stations that need to reach devices in all directions. Directional antennas, on the other hand, concentrate energy toward a specific direction, giving higher gain in that area, longer reach, and reduced interference from unwanted directions. They’re used for point-to-point links or to cover a specific sector where targeted coverage is needed. Other options mix design details or physical attributes rather than how the signal is radiated. Parabolic or patch refers to particular antenna designs, not the general configuration. Circular or square describe shape, not the emission pattern. Internal or external describes mounting location, not how the antenna radiates.

Antenna configurations in wireless systems are defined by how the antenna radiates energy, i.e., its radiation pattern. The main distinction is between omni-directional and directional. Omni-directional antennas emit energy more or less evenly in all directions around the antenna, providing broad, circular coverage (often with a focus in the horizontal plane). This is common for access points or base stations that need to reach devices in all directions.

Directional antennas, on the other hand, concentrate energy toward a specific direction, giving higher gain in that area, longer reach, and reduced interference from unwanted directions. They’re used for point-to-point links or to cover a specific sector where targeted coverage is needed.

Other options mix design details or physical attributes rather than how the signal is radiated. Parabolic or patch refers to particular antenna designs, not the general configuration. Circular or square describe shape, not the emission pattern. Internal or external describes mounting location, not how the antenna radiates.