beam width


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Related to beam width: directivity, Band width

beam width

The angle between the directions, on either side of the axis, at which the intensity of the radio frequency field drops to one-half the value it has on the axis.
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The BeoLab 90 offers unique Beam Width Control, which enables to change the width of the sound beam to suit different listening situations.
Horizontal mount with a narrower beam width minimizing impact of interference
Millimeter solutions offer high data capacity and improved beam width, which enhances communications.
The 15 dBi antenna is still quite common, especially on the lower frequencies, with a vertical beam width of around 14[degrees].
The Reactor TL taclight features Radiance lightbeam technology, which compresses energy into a wide, horizontal light field, with no energy wasted above or below the target area, and features more than twice the common beam width.
The second is the Lasar 40 active/passive system based on a network of arrays, the transmitter operating in the 30 to 45-kHz band with a horizontal beam pattern of 180[degrees], 270[degrees] or 360[degrees] for seabed mounting and jetty wall mounting, a vertical beam width of 3[degrees] to 10[degrees] and vertical beam steering of [+ or -] 10[degrees].
It offers a choice of light colour, beam width -- narrow and medium -- and is available as a complete range: surface-mounted, recessed, semi-recessed, wall-mounted and desktop.
Unlike microwave, however, MMW technology uses a narrow, one-degree beam width, so it has less potential for interfering with other signals than microwave, allowing for a simple and inexpensive licensing scheme.
Beam width is defined as the angle where at least half the maximum gain (3 dB) remains in the radiated field.
Figure 3 shows the value of [alpha] and [alpha]' as a function of beam width for three values of the photodegradation rate, [k.
The system's highway mode increases beam width and length when the vehicle travels over 55 mph, improving field of vision by as much as 164 ft.