| Domain | Definition | ||
| Aerospace | An angular measure of the width of the radiation pattern or beam of an antenna. For imaging radar, both the vertical beam width (affecting the width of the illuminated swath) and the horizontal or azimuth pattern (which determines, indirectly, the azimuth resolution) are frequently used concepts. (references) | ||
| Business | 1) In the radio regime, of an antenna pattern, the angle between the half-power (3-dB) points of the main lobe, when referenced to the peak effective radiated power of the main lobe. Note: Beamwidth is usually expressed in degrees. It is usually expressed for the horizontal plane, but may also be expressed for the vertical plane. 2) For the optical regime, see beam divergence. (references) | ||
| Science | The measure of the 'width' of an antenna pattern, measured in degrees of arc. Generally an antenna with low gain has a wide pattern, receiving signals well from a number of different directions. (references) | ||
| Space | 1: A measure of the radiation pattern of an antenna. For SAR applications, both the vertical beamwidth and the horizontal beamwidth or azimuthal antenna pattern are frequently used concepts. The vertical beamwidth affects the width of the illuminated swath. The horizontal beamwidth determines, indirectly, the azimuth resolution. Beamwidth may be measured in the one-way or two-way form, and in either voltage or power. (references) | 2: The measure of the "width" of an antenna pattern, measured in degrees of arc. Generally an antenna with low gain has a wide pattern, receiving signals well from a number of different directions. See antenna. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
Topics by Level of Interest: BEAMWIDTH | ||||
| Topics sorted by level of Interest | Level (1=low, 600=high) | Topics sorted Alphabetically | Level (1=low, 600=high) | |
| Beamwidth | 3 | Beamwidth | 3 | |
Source: the editor, created by/for EVE to gauge likely levels of human interest in linguistically triggered topics (compiled across various sources, such as Wikipedia and specialty expression glosses). | ||||
