beamwidth
Antenna beam angle
Beamwidth is a technical term describing the angular width of a directional signal—typically radio waves, radar, or light.
It measures how spread out or focused the transmitted energy is: a narrow beamwidth concentrates energy in a tight cone, while a wide beamwidth covers more area with less intensity.
The antenna's beamwidth determines how precisely it can pinpoint a target.
Focused radiation capability
- gainPositive return received
- apertureAdjustable optical inlet
- dipoleSeparated opposite charges
- parabolicShaped like a conic section
horn · isotropic · feed · polarization · boresight · dish · reflector · waveguide
Units of measurement
- azimuthHorizontal directional angle
- elevationHeight above reference point
- divergenceSeparation from common origin
- arcCurved line segment
cone · spread · sector · horizontal · vertical · field of view
Rate of recurrence
- wavelengthSpatial repetition interval
- transmissionSending of information
- propagationAct of spreading widely
- attenuationGradual intensity reduction
gain · interference · spectrum · carrier · signal-to-noise · decibel · power density · footprint
Directing attention narrowly
- tightFirmly stretched or fitting
- sharpFine-edged, or astute
- pinpointLocate with exactness
- directiveFormal command or instruction
concentrated · collimated · tracking · resolution · selectivity
Accuracy of measurement
- calibrationAdjusting for measurement accuracy
- far-fieldZone where waves stabilize
- near-fieldRegion adjacent to source
- instrumentationDesign of measuring devices
directivity
Focused radiation capability
parabolic · horn · isotropic · feed · polarization · boresight · dish · reflector · waveguide · null
degrees
Units of measurement
- azimuthHorizontal directional angle
- elevationHeight above reference point
- divergenceSeparation from common origin
arc · cone · spread · sector · horizontal · vertical · field of view
frequency
Rate of recurrence
- wavelengthSpatial repetition interval
- transmissionSending of information
- propagationAct of spreading widely
attenuation · gain · interference · spectrum · carrier · signal-to-noise · decibel · power density · footprint · coverage
focused
Directing attention narrowly
directive · concentrated · collimated · tracking · resolution · selectivity
precision
Accuracy of measurement
- calibrationAdjusting for measurement accuracy
- far-fieldZone where waves stabilize
- near-fieldRegion adjacent to source