Izixazululo ze-RF ezithuthukisiwe kanye ne-Microwave ze-LEO Satellite kanye ne-Aerospace
Ukunika amandla ama-Constellation esizukulwane esilandelayo ngezingxenye ezithembekile kakhulu, ezilula, neziqinile ekushiseni
Isimo Semboni Namaphuzu Obuhlungu
Ukuqala kwenkathi ye-New Space kulethe ukwanda okungakaze kubonwe ezinkanyezini zesathelayithi ze-Low Earth Orbit (LEO). Kodwa-ke, i-indawo eyinkimbinkimbi yesikhalainezithiyo ezinkulu zobunjiniyela. Ngokungafani nokuxhumana kwasemhlabeni, izinhlelo zokusebenza zezindiza kanye nezesathelayithi zisebenza endaweni engenamuntu ebonakala ngemisebe enamandla yendawo yonke, ukuguguleka komoya-mpilo we-athomu, kanye nokucindezeleka okukhulu kwemishini ngesikhathi sokuqaliswa.
Ngezingxenye ze-RF kanye ne-microwave ezingasebenzi, lezi zindlela eziyingozi zemvelo zibeka izidingo zokusebenza eziqinile. Onjiniyela bahlala belwa nokulinganiselwa okungokomzimba kwezinto zokwakha. Amaphuzu ayinhloko obuhlungu ajikeleza isidingo esiphelele sokunciphisaisisindo kanye nomthamo wamadivayisingaphandle kokulahlekelwa ukusebenza kukagesi. Igremu ngayinye eyengeziwe efakwa ku-orbit ikhulisa kakhulu izidingo zikaphethiloli kanye nezindleko zomsebenzi jikelele.
Ngaphezu kwalokho, amasathelayithi e-LEO azungeza uMhlaba cishe njalo ngemizuzu engama-90, eshintsha ngokushesha phakathi kokushisa okukhulu kwemisebe yelanga eqondile kanye nobumnyama obubandayo bomthunzi woMhlaba. Lokhu kudala indawo lapho izingxenye kufanele zigcine ukuzinza okuphelele kwemvamisa kanye nobuqotho besakhiwo naphezu kokuthiukushintshashintsha kwezinga lokushisa okukhulu.
Izinto Ezibangela Ukucindezeleka Kwemvelo Ezibucayi
✦Amaphrofayili Okuqalisa Okudlidliza Okuphezulu:Izingxenye kumele zisinde ekushaqekeni okukhulu kwe-acoustic kanye ne-mechanical ngesikhathi sokuphuma.
✦Ukususa igesi nge-vacuum:Izinto akumelwe zikhiphe ama-compounds aguquguqukayo angaqina ezindaweni ezibucayi ze-optical noma ze-RF.
✦Ukukhathala Kokujikeleza Okushisayo:Ukwanda okusheshayo kanye nokufinyela okuholela ekuqhekekeni okuncane kwamalunga e-solder kanye nezakhiwo ze-waveguide.
Izinselele Eziyinhloko ku-RF Yezindiza
Imikhawulo Emikhulu Ye-SWaP
Ekwakhiweni kwesimanje kwemithwalo yesathelayithi, i-SWaP (Usayizi, Isisindo, Namandla) iyisilinganiso esiphezulu. Ukuqalisa umthwalo wemithwalo ku-orbit kuyabiza kakhulu, ngokuvamile kubiza izinkulungwane zamaRandi ngekhilogramu. Izingxenye ze-RF zendabuko, ikakhulukazi izihlungi ezinamandla aphezulu, ama-multiplexers, nama-isolators, ngokuvamile zenziwa ngomshini ngethusi elisindayo noma i-aluminium ejiyile ukuze kugcinwe ukusebenza kukagesi kanye ne-Q-factor.
Inselele isekuklameni lezi zingxenye ezingasebenzi ukuze zihlangabezane nemikhawulo eqinile yesisindo sama-micro kanye nama-nano-satellite ngaphandle kokubeka engcupheni ikhono lazo lokusingatha amazinga aphezulu wamandla e-RF. Ukunciphisa amandla kuvame ukuholela ekulahlekelweni okukhulu kokufakwa kanye nezinkinga zokushabalaliswa kokushisa, okudala impikiswano yobunjiniyela eyinkimbinkimbi edinga isayensi yezinto ezintsha kanye nokulingisa okuthuthukisiwe kwe-electromagnetic ukuze kuxazululwe.
Ukushintshashintsha Kwezinga Lokushisa Okukhulu (-55°C kuya ku-+125°C)
Amasathelayithi ku-LEO abhekana nesimo sezulu esishisayo esinonya. Njengoba ejikeleza, abhekene nemisebe yelanga eqondile, engahlungiwe ebangela amazinga okushisa aphezulu, kulandelwe ngokushesha yiqhwa elijulile lokusitheka kwelanga. Lokhu kuphumela ekudingeni izinga lokushisa lokusebenza elisukela ku--55°C kuya ku-+125°C.
Kuma-filter e-RF nama-resonator e-cavity, lokhu kuyinhlekelele uma kungaphathwa kahle. Izinsimbi ziyanda futhi zinciphe ngokushintsha kwezinga lokushisa. Ngisho noshintsho oluncane kakhulu ngobukhulu obubonakalayo besihlungi se-cavity lungashintsha imvamisa yaso ephakathi, okubangela ukuwohloka kwesignali, ukuphazamiseka kwesiteshi esiseduze, noma ukulahlekelwa ngokuphelele kwesixhumanisi sokuxhumana. Ukugcina ukuzinza kukagesi kulo lonke leli gradient lokushisa elingu-180 degrees kungenye yezinselelo ezibaluleke kakhulu kubunjiniyela be-RF bezindiza.
Izixazululo Zethu Ezisezingeni Eliphezulu
Phakathi neminyaka eminingi yocwaningo nokuthuthukiswa kobuchwepheshe be-RF/Microwave, i-Leader Microwave ithuthukise amasu okukhiqiza akhethekile aklanyelwe ngqo ukunqoba amaqiniso anzima okusetshenziswa kwesikhala.
Izihlungi ze-Waveguide ezilula kanye ne-Cavity
Sisebenzisa ama-aluminium alloys asezingeni eliphezulu kanye nezinto ezikhethekile ezihlanganisiwe ukukhiqiza izihlungi zethu zebanga lesikhala. Ngokusebenzisa imishini ye-CNC enembile kanye nokwenza ngcono i-topology yesakhiwo, sisusa ubunzima obungadingekile ngenkathi sigcina ukuqina kwesakhiwo.
Umphumela: Ukwehla okukhulu kwesisindo okungaphezu kuka-30% uma kuqhathaniswa nemiklamo yendabuko, okuhumusha ngqo izindleko zokuqalisa eziphansi.
Ukuqina Kwezinga Lokushisa Okungalingani
Ukuze kulwiwe nokujikeleza kokushisa okusuka ku--55°C kuya ku-+125°C, onjiniyela bethu basebenzisa amasu okulinganisela amazinga okushisa. Lokhu kufaka phakathi ukusetshenziswa kwe-Invar (i-alloy ye-nickel-iron ene-coefficient ephansi kakhulu yokwanda kokushisa) kanye nemiklamo yesakhiwo se-bi-metallic ezilungisa ngokwayo njengoba amazinga okushisa eshintsha.
Umphumela: Ukuqina kwemvamisa okumangalisayo, okuqinisekisa ukugeleza kwemvamisa okungaphansi kuka-2ppm/°C, okugcina izimpawu zakho zivaliwe kahle ethagethini.
Izixhumanisi Ezijikelezayo Ezithembeke Kakhulu
Ukwehliswa kwezindleko akusho lutho uma uhlelo luhluleka ekuzungeni. Izingxenye zethu zezindiza zithola ukuhlaziywa okunamandla kokuphindaphinda, ukuhlolwa kwe-thermal vacuum (TVAC), kanye nokuhlolwa kokudlidliza ukuqinisekisa ukuthi ziyasinda ekuqalisweni futhi zisebenza kahle impilo yonke yomsebenzi.
Umphumela: Ukunciphisa ngempumelelo izindleko zokulayisha umthwalo wokuqalisa ngesathelayithi ngenkathi kuqinisekiswa ukuthembeka kwesixhumanisi sokuxhumana isikhathi eside ekuzuleni.
