CWDP CWDP Antenna Design and Placement 3

Question 1

What is the purpose of using diversity antennas on an access point?

Accepted Answer

To reduce multipath fading by selecting the best signal path

Answer

To increase EIRP beyond single-antenna limits

Answer

To broadcast on two channels simultaneously

Answer

To double the transmit power output

Question 2

In a stadium deployment requiring coverage of tiered seating, which antenna configuration is most effective?

Accepted Answer

Multiple sector antennas aimed at seating sections

Answer

Single high-gain omnidirectional at center court

Answer

Distributed antenna system with low-gain elements

Answer

Yagi antennas pointed at the center court

Question 3

What is a parasitic element in antenna design used to achieve?

Accepted Answer

Modify the radiation pattern by passive coupling

Answer

Protect the antenna from ESD damage

Answer

Provide a DC ground path for the antenna

Answer

Increase the impedance matching bandwidth

Question 4

Why is antenna impedance matching (typically 50 ohms) important in WLAN installations?

Accepted Answer

It maximizes power transfer and minimizes reflected power

Answer

It determines the operating frequency of the antenna

Answer

It sets the polarization of the antenna

Answer

It controls the output power of the AP radio

Question 5

A CWDP designer is deploying APs in a metal-shelving warehouse. What antenna placement strategy best reduces multipath?

Accepted Answer

Mount APs high on the ceiling above the shelving

Answer

Mount APs at floor level between aisles

Answer

Place antennas at the ends of each aisle only

Answer

Use high-gain directional antennas at the perimeter

Question 6

Which regulatory body in the US governs outdoor WLAN antenna and power limits?

Accepted Answer

FCC

Answer

IEEE

Answer

Wi-Fi Alliance

Answer

NIST