Kev daws teeb meem RF & Microwave siab heev rau LEO Satellite & Aerospace
Txhawb kom cov Constellations tiam tom ntej muaj zog nrog cov khoom siv uas ruaj khov, sib dua, thiab kub tau zoo
Cov Xwm Txheej Kev Lag Luam & Cov Teeb Meem Mob
Lub sijhawm pib ntawm Lub Caij Nyoog Tshiab tau coj kev vam meej tsis tau muaj dua hauv Low Earth Orbit (LEO) satellite constellations. Txawm li cas los xij,ib puag ncig chaw nyuajmuaj cov teeb meem loj heev ntawm kev tsim kho. Tsis zoo li kev sib txuas lus hauv av, kev siv dav hlau thiab satellite ua haujlwm hauv qhov chaw nqus tsev uas tsis zam txim uas muaj cov hluav taws xob cosmic hnyav, kev puas tsuaj ntawm atomic oxygen, thiab kev ntxhov siab hnyav thaum lub sijhawm tso tawm.
Rau cov khoom siv RF thiab microwave passive, cov kev kub ntxhov ib puag ncig no ua rau muaj kev ua haujlwm hnyav. Cov kws ua haujlwm engineers yeej ib txwm tawm tsam cov kev txwv ntawm cov khoom siv. Cov teeb meem tseem ceeb yog qhov tsim nyog kom txo qis qhovqhov hnyav thiab qhov ntim ntawm cov khoom sivtsis tas yuav txo qhov ua tau hluav taws xob. Txhua gram ntxiv uas muab tso rau hauv lub voj voog ua rau qhov xav tau roj thiab cov nqi tag nrho ntawm lub luag haujlwm nce ntxiv.
Ntxiv mus, LEO satellites ncig lub ntiaj teb kwv yees li txhua 90 feeb, hloov pauv sai sai ntawm qhov kub hnyiab ntawm lub hnub ci ncaj qha thiab qhov tsaus ntuj ntawm lub ntiaj teb lub duab ntxoov ntxoo. Qhov no tsim ib puag ncig uas cov khoom yuav tsum tswj hwm qhov zaus ruaj khov thiab kev ua haujlwm ruaj khov txawm tiaskev hloov pauv kub heev.
Cov Kev Nyuaj Siab Tseem Ceeb ntawm Ib puag ncig
✦Cov Profiles Tua Tawm High-Vibration:Cov khoom yuav tsum tiv taus kev co ntawm lub suab thiab lub zog thaum lub sijhawm nqa tawm.
✦Kev Tshem Tawm Pa Nqus Tsev:Cov ntaub ntawv yuav tsum tsis txhob tso tawm cov tshuaj uas ua rau cov khoom tawg uas tuaj yeem sib sau ua ke rau ntawm qhov muag pom lossis RF.
✦Kev qaug zog ntawm kev caij tsheb kauj vab thermal:Kev nthuav dav thiab kev sib cog lus sai ua rau muaj kev tawg me me hauv cov pob qij txha thiab cov qauv waveguide.
Cov Kev Sib Tw Tseem Ceeb hauv Aerospace RF
Cov Kev Txwv Loj Tshaj Plaws ntawm SWaP
Hauv kev tsim cov khoom thauj khoom niaj hnub no, SWaP (Qhov Loj, Qhov Hnyav, thiab Lub Hwj Chim) yog qhov ntsuas kawg. Kev tso cov khoom thauj mus rau hauv lub voj voog yog kim heev, feem ntau raug nqi ntau txhiab daus las ib kilogram. Cov khoom siv RF ib txwm muaj, tshwj xeeb tshaj yog cov lim dej muaj zog siab, cov khoom sib txuas, thiab cov khoom cais, feem ntau yog ua los ntawm cov tooj dag hnyav lossis cov txhuas tuab kom tswj tau kev ua haujlwm hluav taws xob thiab Q-factor.
Qhov kev cov nyom yog nyob rau hauv kev tsim cov khoom siv passive no kom ua tau raws li qhov hnyav ntawm micro thiab nano-satellites yam tsis muaj kev cuam tshuam rau lawv lub peev xwm los tswj cov qib siab RF fais fab. Miniaturization feem ntau ua rau muaj kev poob ntxiv thiab cov teeb meem cua sov dissipation, tsim kom muaj kev sib cav sib ceg nyuaj uas xav tau kev tshawb fawb tshiab thiab kev sim electromagnetic siab heev los daws.
Kev Hloov Pauv Kub Hnyav (-55 ° C txog + 125 ° C)
Cov satellites hauv LEO ntsib ib puag ncig kub heev. Thaum lawv ncig lub ntiaj teb, lawv ntsib lub hnub ci ncaj qha, tsis muaj lim dej ua rau qhov kub ntawm qhov chaw nce siab, ua raws li qhov khov ntawm lub hnub qub poob qis. Qhov no ua rau qhov kub ua haujlwm xav tau ntawm -55 ° C txog + 125 ° C.
Rau cov lim dej RF thiab cov resonators cavity, qhov no yog qhov puas tsuaj yog tias tsis tswj hwm kom zoo. Cov hlau nthuav dav thiab cog lus nrog kev hloov pauv kub. Txawm tias qhov kev hloov pauv me me hauv qhov ntev ntawm lub lim dej cavity tuaj yeem hloov nws qhov chaw nruab nrab, ua rau lub teeb liab puas tsuaj, cuam tshuam rau cov channel sib ze, lossis poob tag nrho ntawm qhov txuas sib txuas lus. Kev tswj hwm hluav taws xob ruaj khov hla qhov 180-degree thermal gradient no yog ib qho ntawm cov teeb meem tseem ceeb tshaj plaws hauv kev tsim kho RF aerospace.
Peb Cov Kev Daws Teeb Meem Tshiab
Los ntawm ntau xyoo ntawm kev tshawb fawb thiab kev txhim kho hauv RF / Microwave thev naus laus zis, Leader Microwave tau tsim cov txheej txheem tsim khoom tshwj xeeb uas tsim tshwj xeeb los kov yeej qhov tseeb ntawm kev xa mus rau qhov chaw.
Cov Lim Dej Waveguide thiab Cavity Sib Dua
Peb siv cov khoom siv aluminium nyias nyias thiab cov khoom siv sib xyaw tshwj xeeb los tsim peb cov lim dej zoo li qhov chaw. Los ntawm kev siv CNC machining thiab kev ua kom zoo dua qub, peb tshem tawm cov pawg tsis tsim nyog thaum tswj kev ruaj khov ntawm cov qauv.
Qhov Tshwm Sim: Qhov hnyav txo qis ntau dua 30% piv rau cov qauv tsim ib txwm muaj, txhais tau tias tus nqi tso tawm qis dua.
Kev Ruaj Ntseg Kub Tsis Sib Xws
Yuav kom tiv thaiv tau qhov kub ntawm -55°C txog +125°C, peb cov engineers siv cov txheej txheem kho qhov kub thiab txias tshwj xeeb. Qhov no suav nrog kev siv Invar (ib qho hlau nickel-iron uas muaj qhov coefficient qis ntawm thermal expansion) thiab cov qauv tsim bi-metallic uas kho tau tus kheej thaum qhov kub hloov pauv.
Qhov Tshwm Sim: Kev ruaj khov ntawm zaus zoo heev, ua kom muaj qhov hloov pauv zaus tsawg dua 2ppm / ° C, ua kom koj cov teeb liab xauv zoo meej rau ntawm lub hom phiaj.
Cov Kev Txuas Orbital Uas Muaj Kev Ntseeg Siab
Kev txo nqi tsis txhais tau tias tsis muaj dab tsi yog tias lub kaw lus ua haujlwm tsis zoo hauv lub voj voog. Peb cov khoom siv hauv dav hlau tau dhau los ntawm kev tshuaj xyuas ntau yam, kev sim thermal vacuum (TVAC), thiab kev tshuaj xyuas kev co kom paub tseeb tias lawv muaj sia nyob thaum pib thiab ua haujlwm zoo kawg nkaus rau tag nrho lub neej ua haujlwm.
Qhov Tshwm Sim: Txo cov nqi thauj khoom ntawm lub satellite thaum ua kom muaj kev ntseeg tau ntawm kev sib txuas lus mus sij hawm ntev hauv lub voj voog.
