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Cooperate with Huawei to participate in the construction of wireless cellular base stations in China in 2020


Cooperate with Huawei to participate in the construction of wireless cellular base stations in China in 2020

In 2020, in cooperation with Huawei in China, we will participate in the construction of thousands of wireless cellular base stations in total, among which we will provide microstrip power dividers with frequencies of 0.5/6g and 1-50g as supporting hardware.

More wireless cellular base station equipment coverage will be involved in 2021, and the total number is expected to exceed tens of thousands of devices.

Cooperate with Huawei to participate in the construction of wireless cellular base stations in China in 2020-1

Frequency bands suitable for satellite communications

Time: 2021-10-28

ITU defines frequency bands, which are used for satellite communications.

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 3-30GHz.

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.


Post time: Nov-18-2021