请输入您要查询的英文单词:

 

单词 sideband
释义

sidebandn.

Brit. /ˈsʌɪdband/, U.S. /ˈsaɪdˌbænd/
Origin: Formed within English, by compounding. Etymons: side n.1, band n.2
Etymology: < side n.1 + band n.2
1. Any of various bands on or at the side of something.
ΚΠ
1615 H. Crooke Μικροκοσμογραϕια 800 Ouerthwart bandes doe presse or constraine more than right, and right more than oblique or side bands.
1775 J. Anderson Ess. Agric. 9 The through-band seal [of turf on a dike] is put a-cross the ends of these lengthways, so as to form a side-band.
1889 Life 14 Mar. 159 Additional Novelties will also be shown in French Dress Goods with deep side-bands.
1904 P. N. Hasluck Metalworking 603/2 The band..can be very easily cut down level with the two side bands with a sharp chisel and files.
2005 O. R. Chiocca College Street viii. 48 Our specially designed wedding suits (the ones with the built-in elastic sidebands on the pants that allowed one's girth to expand).
2. Telecommunications. A band of frequencies above or below a carrier frequency, within which lie the frequencies produced by modulation of the carrier.
ΘΚΠ
society > communication > telecommunication > [noun] > signal > frequency or band of frequencies > band of frequencies
sideband1921
frequency band1922
passband1922
waveband1923
S-band1946
baseband1952
guard band1956
vestigial side band1966
1921 Wireless Age June 16/1 Side band frequencies which differ most from the frequency to which the antenna is tuned are noticeably suppressed.
1922 Proc. IRE 10 363 A modulated radio telephone wave consists of two components, one, the carrier frequency itself and the other, the so-called side bands, which are the actual modulated components.
1943 Electronic Engin. 15 339/2 If only one side-band is received, a local oscillator must supply the suppressed carrier frequency..before the detector stage.
1974 Physics Bull. Mar. 91/2 Attention was drawn to..the use of side bands generated in the visible region by laser mixing techniques as an alternative to direct comparison of infrared and visible wavelengths.
2002 Nature 5 Dec. 471/1 Two extra frequencies, called sidebands,..are separated from the original frequency of the incident wave by the Rabi-flopping frequency.
This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022).
<
n.1615
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/9/22 6:46:23