An engineer is performing a predictive RF design of a typical office environment. Which value is the most likely attenuation of a cubical wall for this environment?

The correct answer is A. 2 dBi. Cubicle walls in a typical office environment are made of lightweight fabric-covered panels with thin frames, making them nearly transparent to RF signals. Their attenuation is approximately 2 dB (expressed as 2 dBi in this question's notation). In contrast, concrete walls can…

WLAN Design

Question

Options

A2 dBi
B12 dBd
C1 dB
D12 mW

How the community answered

(35 responses)

A
91% (32)
B
6% (2)
C
3% (1)

Explanation

Cubicle walls in a typical office environment are made of lightweight fabric-covered panels with thin frames, making them nearly transparent to RF signals. Their attenuation is approximately 2 dB (expressed as 2 dBi in this question's notation). In contrast, concrete walls can attenuate 12–15 dB or more, and glass can vary widely. Option B (12 dBd) and D (12 mW) are incorrect unit forms for wall attenuation - dBd and dBi are antenna gain units, and mW is a power unit, not an attenuation unit. Option C (1 dB) is slightly low but plausible; the industry-standard estimate for a cubicle panel is closer to 2 dB, making A the best answer.

Topics

#RF attenuation#predictive design#office environment#wall attenuation

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