CWS WLAN Hardware and Antennas Flashcards

What type of antenna radiates power equally in all horizontal directions while concentrating it in the vertical plane?

Answer: Omni-directional antenna

Omni-directional antennas radiate energy equally in all azimuthal directions while providing some vertical gain by compressing the beam.

Which connector type is most commonly found on consumer-grade WLAN access points for external antenna attachment?

Answer: RP-SMA

Reverse Polarity SMA (RP-SMA) connectors are the industry standard on consumer and prosumer WLAN equipment for antenna connections.

A wireless bridge link requires covering 3 miles between two buildings. Which antenna type is most appropriate?

Answer: High-gain directional antenna

High-gain directional antennas focus energy toward a specific point, making them ideal for long-distance point-to-point links.

What does EIRP stand for in the context of wireless networking?

Answer: Effective Isotropic Radiated Power

EIRP (Effective Isotropic Radiated Power) is the total power radiated by a system compared to an isotropic radiator, combining transmit power and antenna gain.

When an antenna gain is listed as 6 dBi, what does the 'i' refer to?

Answer: Isotropic radiator reference

The 'i' in dBi indicates the antenna gain is measured relative to a theoretical isotropic radiator that radiates equally in all directions.

Which antenna design is typically used in enterprise ceiling-mount access points to provide 360-degree coverage in an open office?

Answer: Omni-directional ceiling antenna

Ceiling-mount omni-directional antennas provide 360-degree horizontal coverage, making them ideal for open office environments below the access point.

What effect does increasing antenna height above ground level typically have on a WLAN outdoor deployment?

Answer: Increases coverage range by reducing obstructions

Greater antenna height reduces the impact of ground-level obstructions and improves Fresnel zone clearance, extending effective range.