Ka 2020, ka tšebelisano 'moho le Huawei naheng ea China, re tla kenya letsoho kahong ea liteishene tse likete tsa mehala ea thelefono ka kakaretso, tseo har'a tsona re tla fana ka li-divider tsa motlakase tse nang le maqhubu a 0.5/6g le 1-50g e le lisebelisoa tse tšehetsang.
Ts'ebetso e eketsehileng ea lisebelisoa tsa mehala ea mehala e tla ameha ka 2021, 'me palo eohle e lebelletsoe ho feta mashome a likete a lisebelisoa.
Maqhubu a maqhubu a loketseng likhokahano tsa sathelaete
Nako: 2021-10-28
ITU e hlalosa lihlopha tsa maqhubu, tse sebelisetsoang puisano ea satellite.
UHF (Ultra High Frequency) kapa sehlopha sa maqhubu a maqhubu a decimeter, sebaka sa maqhubu ke 300MHz-3GHz.
Sehlopha sena sa maqhubu se lumellana le lihlopha tsa maqhubu tsa IEEE UHF (300MHz-1GHz), L (1-2GHz), le S (2-4GHz).
Maqhubu a seea-le-moea sa UHF a haufi le mokhoa oa pono, a koetsoe habonolo ke lithaba le meaho, joalo-joalo, 'me phetisetso ea ka tlung e batla e le kholo.
SHF (Super High Frequency) kapa centimeter wave frequency band, sebaka sa maqhubu ke 3-30GHz.
Sehlopha sena sa maqhubu se lumellana le lihlopha tsa maqhubu tsa IEEE S (2-4GHz), C (4-8GHz), Ku (12-18GHz), K (18-27GHz) le Ka (26.5-40GHz).
Maqhubu a li-decimeter a na le bolelele ba 1cm-1dm, 'me litšoaneleho tsa bona tsa phatlalatso li haufi le maqhubu a khanya.
EHF (Extremely High Frequency) kapa millimeter wave frequency band, sebaka sa maqhubu ke 30-300GHz.
Sehlopha sena sa maqhubu se lumellana le IEEE's Ka (26.5-40GHz), V (40-75GHz) le lihlopha tse ling tsa maqhubu.
Linaha tse tsoetseng pele li se li qalile merero ea ho sebelisa li-frequency tsa 50/40GHz Q/V menyakong ea tšebeletso e phahameng ea boemo bo phahameng ea sathelaete (HDFSS) ha lisebelisoa tsa Ka-band le tsona li ntse li thatafala.
Re ka boela ra etsa likarolo tsa rf passive ho latela litlhoko tsa hau. U ka kenya leqephe la ho itlhophisa ho fana ka lintlha tseo u li hlokang.
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Nako ea poso: Nov-18-2021
