What statements about the beamwidth of an RF antenna are true?

The correct answer is A. Horizontal and vertical beamwidth are calculated at the points in which the main lobe decreases. Beamwidth is measured at the points where the main lobe decreases in power by 3 dB. The horizontal beamwidth is typically shown on the Azimuth chart and the vertical beamwidth is shown on the Elevation chart. When the gain of an antenna increases, the beamwidth decreases. When…

WLAN Antennas

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AHorizontal and vertical beamwidth are calculated at the points in which the main lobe decreases
BVertical beamwidth is displayed (in degree) on the antenna's Azimuth chart.
CWhen antenna gain is lower, the beamwidth is also lower in both the horizontal and vertical
DThe beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops

How the community answered

(59 responses)

A
80% (47)
B
5% (3)
C
2% (1)
D
14% (8)

Explanation

Beamwidth is measured at the points where the main lobe decreases in power by 3 dB. The horizontal beamwidth is typically shown on the Azimuth chart and the vertical beamwidth is shown on the Elevation chart. When the gain of an antenna increases, the beamwidth decreases. When the beamwidth increases, the gain decreases.

Topics

#beamwidth#antenna polar chart#half-power points#antenna gain

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