frequency band


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frequency band

[′frē·kwən·sē ‚band]
(physics)
A continuous range of frequencies extending between two limiting frequencies.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

frequency bands

Following are the ranges of frequencies in the bands specified by the ITU. See spectrum, frequency range, satellite frequency bands, 5G frequency bands and optical bands.
Frequency Band       From       To

 ELF  Extremely low    3 Hz    30 Hz
 SLF  Super low       30 Hz   300 Hz
 ULF  Ultra low      300 Hz     3 KHz
 VLF  Very low         3 KHz   30 KHz
  LF   Low             30 KHz  300 KHz
 MF   Medium         300 KHz    3 MHz
  HF   High             3 MHz   30 MHz
  VHF  Very high       30 MHz  300 MHz
  UHF  Ultra high     300 MHz    3 GHz
 SHF  Super high       3 GHz   30 GHz
 EHF  Extremely high  30 GHz  300 GHz
 THF  TeraHertz      300 GHz    3 THz




frequency range

(1) A group of frequencies in the electromagnetic spectrum that are assigned by regulatory agencies for a particular purpose. Also called a "frequency band." See frequency bands, spectrum, satellite frequency bands and optical bands.

(2) A group of frequencies that occur naturally such as the audio spectrum. See audio.
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References in periodicals archive ?
Besides being backwards-compatible with legacy networks, it is also re-energizing the capacity and reach of the 2.4 GHz and 5GHz frequency bands. With higher throughput and lower latency, the 11ax promises modern networking hub that can cope with the diversity of wireless devices connected to broadband, a result of improvement from the previous 11ac access points.
Yang Chaobin, president of Huawei's 5G product line, said: "In the early stage of 5G network deployment, C-Band and 2.6GHz are undoubtedly the most mainstream frequency bands. The C-Band industry chain is gradually becoming mature under the joint efforts of all of us.
According to DNA, this 5G frequency band will enable it to develop and strengthen its mobile data services.
Mobile carriers are required to secure sufficient frequency bands to supply stable services.
The Commission, based on the Guidelines for the Deployment of Service in the 5.4GHz Frequency Band issued a public notice dated April 3, 2018 warning unlicensed operators and the general public to vacate illegal transmission in the 5.4GHz frequency Band within 14 days.
The Super Wi-Fi uses the frequency band for TV white space to provide the wireless Internet service like the conventional Wi-Fi.
As shown in Figure 4, compared with the linear open-slot antenna, as it adopts the ladder-shaped connection structure, the impedance matching of antenna in the frequency band from 3 GHz to 13.2 GHz is significantly improved, and the impedance bandwidth of the antenna is effectively increased at the same time.
In 2013, the proliferation of signal interference prompted the NTC to issue Memorandum Order 01-02-2013, prohibiting the sale, purchase, importation, possession or use of signal boosters operating on the 800 megahertz, 900 MHz, 1800 MHz, and 2100 MHz frequency bands without the approval of the regulatory agency.
It is observed that cavitation has a significant influence on the vibration spectrum, and almost the whole frequency band signals are affected.
used 0.027 Hz as dividing level of the low-frequency fluctuations (ALFF) and found that the ALFF abnormalities showed disparate spatial patterns in each frequency band [19].
The acoustic effect was also focused on the frequency band from 100 Hz to 1000 Hz.

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