半はん値ち電でん力りょく幅はば

noun

half-power beamwidth; 3dB beamwidth

Technical term used in antenna theory, signal processing, and optics to describe the angular width where power is at least half the maximum.

• アンテナの半はん値ち電でん力りょく幅はばは指し向こう性せいの重じゅう要ような指し標ひょうです。

  The half-power beamwidth of an antenna is an important indicator of directivity.