Mu 2020, mogwirizana ndi Huawei ku China, tidzatenga nawo gawo pomanga zikwizikwi za masiteshoni opanda zingwe, pakati pawo tidzapereka zogawa mphamvu za microstrip zokhala ndi ma frequency a 0.5/6g ndi 1-50g ngati zida zothandizira.
Zowonjezereka za zida zama cellular base station zidzakhudzidwa mu 2021, ndipo chiwerengero chonse chikuyembekezeka kupitilira makumi masauzande a zida.
Ma frequency omveka oyenera kulumikizana ndi satellite
Nthawi: 2021-10-28
ITU imatanthawuza ma frequency band, omwe amagwiritsidwa ntchito polumikizana ndi satellite.
UHF (Ultra High Frequency) kapena decimeter wave frequency band, ma frequency osiyanasiyana ndi 300MHz-3GHz.
Ma frequency bandiwa amafanana ndi ma frequency a IEEE UHF (300MHz-1GHz), L (1-2GHz), ndi S (2-4GHz).
Mafunde a wailesi ya UHF frequency band ali pafupi ndi kufalikira kwa mawonekedwe, otsekedwa mosavuta ndi mapiri ndi nyumba, ndi zina zambiri, ndipo kutsekeka kwapanyumba kumakhala kwakukulu.
SHF (Super High Frequency) kapena centimeter wave frequency band, ma frequency osiyanasiyana ndi 3-30GHz.
Ma frequency band awa amagwirizana ndi IEEE S (2-4GHz), C (4-8GHz), Ku (12-18GHz), K (18-27GHz) ndi Ka (26.5-40GHz) ma frequency band.
Mafunde a decimeter ali ndi kutalika kwa 1cm-1dm, ndipo mawonekedwe awo amafalitsira ali pafupi ndi mafunde owala.
EHF (Kuthamanga Kwambiri Kwambiri) kapena ma millimeter wave frequency band, ma frequency osiyanasiyana ndi 30-300GHz.
Ma frequency band awa amafanana ndi IEEE's Ka (26.5-40GHz), V (40-75GHz) ndi magulu ena afupipafupi.
Mayiko otukuka ayamba mapulani ogwiritsira ntchito 50/40GHz Q/V ma frequency band pazipata za high-capacity fixed-satellite service (HDFSS) pamene zinthu za Ka-band nazonso zimakhala zolimba.
Titha kusinthanso magawo a rf passive malinga ndi zomwe mukufuna. Mutha kulowa patsamba losintha kuti mupereke zomwe mukufuna.
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Nthawi yotumiza: Nov-18-2021
