Frequency Bands Suitable for Satellite Communications

时间： 2021-12-08 来源：UIY

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ITU defines frequency bands, which are used for satellite communications.This article UIY will introduce the frequency bands suitable for satellite communication.

UHF (Ultra High Frequency) or decimeter wave frequency band, the frequency range is 300MHz-3GHz.This frequency band corresponds to IEEE UHF (300MHz-1GHz), L (1-2GHz), and S (2-4GHz) frequency bands.

UHF frequency band radio waves are close to the line-of-sight propagation, easily blocked by mountains and buildings, etc., and indoor transmission attenuation is relatively large.

SHF (Super High Frequency) or centimeter wave frequency band, the frequency range is 3-30GH.This frequency band corresponds to IEEE S (2-4GHz), C (4-8GHz), Ku (12-18GHz), K (18-27GHz) and Ka (26.5-40GHz) frequency bands.

Decimeter waves have a wavelength of 1cm-1dm, and their propagation characteristics are close to light waves.

EHF (Extremely High Frequency) or millimeter wave frequency band, the frequency range is 30-300GHz.This frequency band corresponds to IEEE's Ka (26.5-40GHz), V (40-75GHz) and other frequency bands.

Developed countries have begun plans to use 50/40GHz Q/V frequency bands at gateways of the high-capacity fixed-satellite service (HDFSS) when Ka-band resources are also becoming tight.

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本文由香菜脆脆鲨转载自UIY，原文标题为:Frequency bands suitable for satellite communications，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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产品型号	品类	Freq. Range(MHz、GHz)	Insertion Loss Max(dB)	Isolation Min(dB)	VSWR	Forward Power(W)	Reverse Power(W)	Connector Type	Temp.(°C)
UIYCDI16080A25T30SF	双节隔离器	25 ~ 30 MHz	7	24	1.45	50	50	SMA-F	+10 ~ +60