Beijing, la 21 Phato, 2025-Mafapheng a ntseng a tsoela pele ka potlako a kang likhokahano tsa 5G, marang-rang a sathelaete, le millimeter{5}}wave radar, lihokelo tsa RF coaxial ke likarolo tsa bohlokoa bakeng sa phetiso ea mats'oao, 'me tšebetso ea tsona e ama ka kotloloho botsitso ba sistimi kaofela. Ka keketseho ea tlhokahalo ea lits'ebetso tsa maqhubu a holimo, baenjiniere ba tobane le liphephetso tse matla le ho feta. Haufinyane tjena, litsebi tsa indasteri li akarelitse malebela a mahlano a sebetsang ho thusa baenjiniere ho ntlafatsa moralo oa sehokelo, ho ntlafatsa katleho ea liteko le ho lelefatsa bophelo ba lisebelisoa.
Keletso ea 1: Khetha Matching e nepahetseng ea Impedance
Ho sitisoa ha lihokelo tsa RF coaxial (hangata 50Ω kapa 75Ω) ho tlameha ho tsamaellana hantle le sistimi; ho seng joalo, lipontšo tsa lipontšo le tahlehelo ea matla li tla fella. "Ka millimeter- maqhubu a maqhubu a maqhubu (mohlala, ka holimo ho 28GHz), esita le ho kheloha ha tekanyo ea 0.1mm ho ka baka phokotso e kholo ho SWR," ho boletse molaoli oa botekgeniki ho moetsi oa likhokahano tsa machabeng. Baenjineri ba lokela ho etelletsa pele ho sebelisa mefuta e tloaelehileng ea tšitiso e fanoeng ke moetsi mme ba netefatse e tšoanang ba sebelisa vector network analyzer (VNA).
Keletso ea 2: Ela hloko ho hloekisa le ho boloka sebopeho sa ho ikopanya.
Lithako tsa li-connector le li-sockets li atisa ho ba le oxidation le lithōle tsa tšepe ka mor'a ho kenngoa le ho tlosoa khafetsa, e leng se lebisang ho eketseha ha khanyetso. "Re khothaletsa ho sebelisa -cotton swab ea mahala ea joala ho hloekisa likhokahano le ho kenya likheo tsa lerole libakeng tse thata," ho boletse moenjiniere ea kentseng letsoho ntlafatsong ea mohlala oa 6G. Bakeng sa maemo a phahameng-a ts'epahalo (joalo ka lisebelisoa tsa sepakapaka), botenya ba khauta bo lokela ho feta 1μm ho matlafatsa ho se sebetse.
Keletso ea 3: Ntlafatsa taolo ea torque ea ho kenya.
Ho tiisa ho feta tekano kapa ho tiisa ka tlase ho ka khutsufatsa bophelo ba sehokelo. Lintlha tsa indasteri li bontša hore torque e khothalletsoang bakeng sa li-connectors tsa SMA ke 0.7-1.0 N · m, ha li-connectors tsa 2.92mm tse nepahetseng li hloka ho nepahala ha 0.35 N·m. "Ho sebelisa torque-e lekanyelitsoeng ho fokotsa phoso ea batho, e leng bohlokoa haholo tlhahisong ea bongata," ho hatelletse molaoli oa R&D oa moetsi oa thepa ea liteko.
Keletso ea 4: Ntlafatsa ts'ebetso ea ts'ireletso ka maqhubu a phahameng.
Sehlopheng sa maqhubu a maqhubu a 5G millimeter wave, ho se sebetse hantle ha sehokelo ho ka lebisa mathateng a motlakase (EMI). Litharollo tsa morao-rao li kenyelletsa tšireletso e meraro le{2}}lisebelisoa tse tlase tsa dielectric- tsa kamehla. "Lab ea rona, re fumane hore ho eketsa PTFE (polytetrafluoroethylene) padding ho ka ntlafatsa ho thibela tšireletso ka ho feta 10dB," ho boletse moetapele oa sehlopha sa lipatlisiso tsa univesithi.
Keletso ea 5: Tharollo ea Mathata ka Potlako
Ha sistimi e ba le mathata, lienjiniere li ka sebelisa-mehato e meraro ho fumana mathata a likhokahano:
1. Tlhahlobo ea pono: Ela hloko lithakhisa tse kobehileng kapa ho ebola;
2. Teko ea nako ea reflectometry (TDR): Fumana li-discontinuities tsa impedance;
3. Mokhoa oa ho fetola: Tlohela sehokelo se belaelloang ho netefatsa taba.
"Mathata a phahameng-hangata a etsahala likhokahanong tse tharo tsa pele. Ho beha libaka tsena pele ho ka boloka nako e fetang 50% ea nako ea ho rarolla mathata," ho eletsa moenjiniere e moholo oa RF.
Mekhoa ea Indasteri: Miniaturization le maqhubu a phahameng a kopana ka ho tšoana
Ha boholo ba sephutheloana sa chip bo ntse bo fokotseha, tlhoko ea lihokelo tse nyane haholo-le 1.0mm le 0.8mm, e ntse e hola ka potlako. Ka nako e ts'oanang, waveguide-ho{5}}coaxial conversion technology e tšehetsang maqhubu a fetang 110 GHz e fetohile sebaka sa lipatlisiso le nts'etsopele. Litsebi li bolela esale pele hore lihokelo tse bohlale tse nang le matšeliso a kopaneng a mocheso li tla fetoha ntho e tloaelehileng butle-butle nakong ea lilemo tse hlano tse tlang.
Qetello
Ho ntlafatsa ts'ebetso ea lihokelo tsa RF coaxial ho hloka kopanyo e tebileng ea mohopolo le tloaelo. Ho tseba mekhoa e boletsoeng ka holimo ho ke ke ha ntlafatsa katleho ea boenjiniere feela empa hape ho tla rala motheo o tiileng bakeng sa lisebelisoa tsa likhokahano tsa moloko o latelang-. Joalo ka ha setsebi se seng sa indasteri se beha taba, "Lintlha li bontša katleho kapa ho hloleha ha -matšoao a khafetsa, 'me likhokahano li bohareng ba lintlha tsena."
(Mehloli ea lintlha: International Connector Association (ICA), IEEE Transactions on Microwave Theory and Techniques)