翻訳と辞書
Words near each other
・ Antenna (film)
・ Antenna (GO!GO!7188 album)
・ Antenna (radio)
・ Antenna (song)
・ Antenna (ZZ Top album)
・ Antenna 3
・ Antenna 3 Lombardia
・ Antenna 5 FM
・ Antenna amplifier
・ Antenna analyzer
・ Antenna aperture
・ Antenna array
・ Antenna array (electromagnetic)
・ Antenna Awards
・ Antenna blind cone
Antenna boresight
・ Antenna codlet
・ Antenna diversity
・ Antenna effect
・ Antenna efficiency
・ Antenna equivalent radius
・ Antenna factor
・ Antenna farm
・ Antenna feed
・ Antenna gain
・ Antenna gain-to-noise-temperature
・ Antenna height above average terrain
・ Antenna height considerations
・ Antenna interface standards group
・ Antenna Island


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Antenna boresight : ウィキペディア英語版
Antenna boresight

In telecommunications and radar engineering, antenna boresight is the axis of maximum gain (maximum radiated power) of a directional antenna. For most antennas the boresight is the axis of symmetry of the antenna. For example, for axial-fed dish antennas, the antenna boresight is the axis of symmetry of the parabolic dish, and the antenna radiation pattern (the main lobe) is symmetrical about the boresight axis. Most antennas boresight axis is fixed by their shape and cannot be changed. However phased array antennas can electronically steer the beam, changing the angle of the boresight by shifting the relative phase of the radio waves emitted by different antenna elements, and even radiate beams in multiple directions (multiple boresights).〔()〕
The term ''boresight'' came from high-gain antennas such as parabolic dishes, which produce narrow, pencil-shaped beams which are difficult to aim accurately at a distant receiving antenna. These often are equipped with optical boresights to assist in aiming.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Antenna boresight」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.