Hauv kev sib txuas lus niaj hnub no, lub duplexer yog ib qho tseem ceeb ntawm cov khoom tseem ceeb. Nws lub luag haujlwm tseem ceeb yog cais cov xa tawm thiab tau txais cov cim qhia kom tib lub zaus siv tau rau ob qho tib si kis tau tus mob thiab txais tos, yog li txhim kho kev ua haujlwm ntawm kev siv spectrum. Duplexers muaj cov kev cai sib txawv thiab cov kev xav tau ntawm kev ua haujlwm hauv cov txheej txheem sib txawv. Yuav ua li cas xaiv ib tug duplexer haum rau ib tug tshwj xeeb daim ntawv thov scenario tau dhau los ua ib lub ntsiab lus tseem ceeb hauv kev tsim cov khoom siv sib txuas lus. Kab lus no yuav tham txog qhov tob yuav ua li cas xaiv cov duplexer uas haum tshaj plaws los ntawm ntau qhov ntev xws li daim ntawv thov scenarios, kev ntsuas, thiab cov khoom zoo.
1. Daim ntawv thov scenarios
Duplexers feem ntau yog siv nyob rau hauv qhov chaw uas cov teeb liab tsis zoo los yog yuav tsum tau txhim kho lub teeb liab. Cov hauv qab no yog ob peb yam kev siv scenarios:
● Hauv qab daus
Hauv qhov chaw kaw xws li hauv qab daus, tshwj xeeb tshaj yog nyob rau hauv cov tsev siab siab hauv cov nroog, cov teeb liab feem ntau tsis tuaj yeem kis tau zoo vim muaj kev cuam tshuam ntawm cov vaj tse. Hauv qab daus feem ntau muaj qhov tsis muaj zog lossis tsis muaj kev sib txuas lus tag nrho. Hauv qhov xwm txheej no, cov duplexers feem ntau yog siv los txhim kho kev sib txuas lus zoo hauv qab daus, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej uas muaj kev xaiv ntau zaus thiab tsis tshua muaj qhov nkag. Los ntawm lub duplexer hloov tau yooj yim, cov teeb liab sib txuas lus hauv tsev thiab sab nraum zoov tuaj yeem sib cais tau zoo, yog li txhim kho kev ua haujlwm ntawm kev sib txuas lus.
● Cov Tsev Ua Haujlwm
Nyob rau hauv cov tsev neeg uas muaj neeg coob coob xws li cov tsev ua haujlwm, cov teeb liab attenuation lossis multipath cuam tshuam yuav tshwm sim vim yog cov qauv sab hauv. Txhawm rau kom ntseeg tau tias kev sib txuas lus hauv lub tsev ua haujlwm tuaj yeem ua haujlwm tau ib txwm, lub duplexer feem ntau yog siv los cais cov teeb liab sib txawv los xyuas kom meej cov teeb liab ruaj khov thiab meej. Tsis tas li ntawd, nyob rau hauv cov chaw ua haujlwm loj lossis ib puag ncig uas muaj ntau lub tshuab kev sib txuas lus nyob rau hauv tib lub sijhawm, kev tawm tsam kev tawm tsam siab thiab kev sib cais zoo yog qhov tseem ceeb ntawm kev ua haujlwm.
● High-speed rail thiab mobile kev sib txuas lus
Nyob rau hauv high-ceev tsiv ib puag ncig xws li high-speed railways (HSRs), qhov zoo ntawm kev sib txuas lus teeb liab yog feem ntau nyuaj rau lav vim hais tias ntawm high-ceev mus txawv tebchaws tsheb ciav hlau thiab muaj zog electromagnetic cuam tshuam nyob rau hauv ib puag ncig. Lub sijhawm no, lub luag haujlwm ntawm duplexer tshwj xeeb yog qhov tseem ceeb. Nws tuaj yeem tsis tsuas yog pab cais cov teeb liab sib txawv hauv ntau zaus, tab sis kuj ua kom zoo dua qhov kev sib kis ntawm cov teeb liab kom ntseeg tau tias kev sib txuas lus ntawm txoj kev tsheb ciav hlau ceev tuaj yeem ua haujlwm ruaj khov hauv ib puag ncig electromagnetic.
2. Kev ntsuas ntsuas
Thaum xaiv ib tug duplexer, ntau yam kev qhia yuav tsum tau txiav txim siab los xyuas kom meej tias nws muaj peev xwm muab tau qhov zoo tshaj plaws kev ua tau zoo nyob rau hauv tej yam kev thov scenarios. Cov nram qab no yog ob peb yam kev qhia uas yuav tsum tau teem rau thaum xaiv ib tug duplexer.
● Zaus teb
Cov lus teb zaus ntawm duplexer ncaj qha cuam tshuam rau nws txoj haujlwm ua haujlwm. Ib tug zoo duplexer yuav tsum tau muab tsis tshua muaj insertion poob thiab siab cais nyob rau hauv lub khiav hauj lwm zaus band. Qhov qis dua qhov poob qis, lub teeb liab tsawg dua thaum dhau los ntawm duplexer, thiab ntau dua qhov kev ua tau zoo ntawm tag nrho ntawm qhov system; thaum muaj kev sib cais siab txhais tau hais tias cov teeb liab kis tau thiab cov teeb liab tau txais tuaj yeem raug cais tawm zoo dua kom tsis txhob muaj kev cuam tshuam kev sib raug zoo thiab xyuas kom meej qhov purity ntawm lub teeb liab.
Thaum kuaj cov lus teb zaus, lub network analyzer feem ntau yog siv los ntsuas qhov poob (Insertion Poob) thiab kev sib cais (Isolation) ntawm duplexer. Qhov kev poob qis feem ntau yuav tsum yog me me li sai tau, thiab qhov kev sib cais yuav tsum tau loj npaum li qhov ua tau. Thaum lub sij hawm tsim cov txheej txheem, nws yog ib qho tsim nyog los xyuas kom meej tias qhov kev poob qis thiab kev sib cais ntawm lub duplexer yog nyob rau hauv cov qauv tsim kom tau raws li qhov yuav tsum tau ua.
● Impedance txuam
Lub input thiab output ports ntawm lub duplexer feem ntau yuav tsum tau impedance txuam nrog cov kev cob cog rua Circuit Court, feem ntau yog 50Ω. Impedance matching yog ib qho tseem ceeb hauv kev ua kom cov teeb liab kis tau zoo. Yog tias qhov sib piv impedance tsis tsim nyog, nws yuav ua rau muaj kev cuam tshuam tsis zoo, txo qhov kev sib kis ntawm lub cev, thiab tej zaum yuav ua rau lub cev tsis ruaj khov. Yog li ntawd, thaum xaiv ib tug duplexer, nws yuav tsum tau them sai sai mus rau lub reflection coefficient ntawm nws chaw nres nkoj, optimize lub impedance txuam, thiab xyuas kom meej lub siab tshaj plaws kis tau tus mob efficiency ntawm lub teeb liab.
● Kub thiab ib puag ncig adaptability
Qhov kev ua tau zoo ntawm duplexer nyob ntawm tsis yog tsuas yog nyob ntawm nws tus qauv tsim thiab kev tsim khoom zoo, tab sis kuj nyob ntawm ib puag ncig sab nraud. Tshwj xeeb tshaj yog nyob rau hauv qee qhov kev thov nrog kev hloov pauv loj hauv qhov kub thiab av noo (xws li cov khoom siv sab nraum zoov lossis cov tsheb ciav hlau ceev), lub duplexer yuav tsum muaj kev hloov pauv ib puag ncig. Lub duplexer yuav tsum muaj kev ua tau zoo tshaj qhov kev khiav hauj lwm kub ntau, xws li los ntawm -40 degree mus rau +85 degree . Tsis tas li ntawd, nws lub peev xwm ua haujlwm nyob rau hauv cov av noo sib txawv yuav tsum tau txiav txim siab los xyuas kom meej tias lub duplexer ua haujlwm ruaj khov hauv qhov chaw sib txawv.
● Kev tawm tsam siab tawm tsam
Out-of-band suppression yog hais txog lub peev xwm ntawm lub duplexer kom muaj txiaj ntsig zoo rau cov teeb meem hauv cov zaus tsis ua haujlwm. Kev tawm tsam siab tawm ntawm pawg tuaj yeem zam cov teeb liab cuam tshuam los ntawm qhov tsis sib xws ntawm cov kab hluav taws xob tsis sib xws thiab ua kom pom tseeb thiab tsis muaj suab nrov hauv lub cev. Tshwj xeeb tshaj yog nyob rau hauv high-density, multi-band daim ntawv thov scenarios, lub peev xwm ntawm kev tawm-ntawm-band tsub kom yog ib qho tseem ceeb los txo cov kev cuam tshuam.
3. Yuav ua li cas xaiv ib tug duplexer raws li daim ntawv thov
Thaum xaiv ib lub duplexer tiag tiag, nws yog ib qho tsim nyog yuav tsum xav txog cov kev thov tshwj xeeb, cov cim qhia thiab ib puag ncig. Cov hauv qab no yog qee cov lus qhia rau kev xaiv ib tug duplexer raws li qhov sib txawv daim ntawv thov scenarios.
● Duplexer nrog lim
Rau daim ntawv thov scenarios uas yuav tsum tau muaj kev sib cais siab, tsis tshua muaj qhov tsis zoo, thiab kev tawm tsam siab (xws li cov tsev ua haujlwm nyuaj, kev tsheb ciav hlau ceev thiab lwm qhov chaw), duplexer nrog lim yog qhov kev xaiv zoo tshaj. Lub duplexer nrog lim integrates filtering functions, uas muaj peev xwm ua tau zoo inhibit kev cuam tshuam los ntawm tawm-ntawm-band zaus bands thiab xyuas kom meej lub purity ntawm kis thiab tau txais cov cim.
● Duplexer nrog broadband lim
Yog tias daim ntawv thov scenario xav tau kev ua haujlwm dav dav thiab ntau pawg (xws li qee qhov chaw nres tsheb loj, kev sib txuas lus hauv xov tooj, thiab lwm yam), lub duplexer nrog broadband lim tuaj yeem ua tau raws li cov cai no. Lub duplexer nrog broadband lim tuaj yeem tswj tau qhov zoo ntawm qhov tsis zoo thiab kev sib cais nyob rau hauv qhov dav spectrum ntau yam, yog tsim rau ntau pawg thiab kev sib txuas lus ib puag ncig, thiab tuaj yeem txhawb kev siv tib lub sijhawm ntawm ntau yam kev sib txuas lus.
● Miniaturized tsim
Rau qee qhov chaw txwv tsis pub siv (xws li cov khoom siv sib txuas lus txawb, chaw nres tsheb hauv paus, thiab lwm yam), nws yog ib qho tsim nyog los xaiv ib qho me me thiab lub teeb duplexer. Lub duplexer no tuaj yeem tsis tsuas yog ua tau raws li qhov yuav tsum tau ua haujlwm siab, tab sis kuj tseem muab cov teeb liab txaus cais tawm thiab muaj peev xwm kis tau tus mob hauv qhov chaw txwv.
● Ib puag ncig adaptability
Rau duplexers siv nyob rau hauv hnyav ib puag ncig, xws li kub, high humidity, thiab huab cua txias, tshwj xeeb yuav tsum tau them nyiaj mloog mus rau ib puag ncig adaptability ntawm lub duplexer. Xaiv lub duplexer nrog muaj zog tiv thaiv kev cuam tshuam thiab kev ua haujlwm kub ntau los xyuas kom meej tias nws ua haujlwm ruaj khov hauv ntau qhov chaw ua haujlwm.
4. Cov khoom zoo thiab kev ua lag luam tiam sis
Ib tug duplexer zoo heev yuav tsum muaj cov yam ntxwv ntawm kev xaiv ntau zaus, tsis muaj qhov tso tawm tsis zoo, kev tawm tsam ntawm cov band siab, thiab kev sib cais siab. Ntxiv nrog rau cov kev ua yeeb yam yooj yim no, qhov me me, lub teeb yuag, thiab kev teeb tsa yooj yim thiab kev saib xyuas kuj tseem yog qhov tseem ceeb uas tsis tuaj yeem tsis quav ntsej hauv kev tsim. Nrog rau kev nce qib ntawm thev naus laus zis, duplexers tab tom txav mus rau qhov me me thiab ntau qhov kev coj ua kom tau raws li kev xav tau kev sib txuas lus nyuaj.
Hauv kev ua lag luam, qee lub npe nrov ntawm cov duplexers tau raug kuaj nruj thiab txheeb xyuas qhov ua tau zoo thiab ruaj khov, thiab cov neeg siv tuaj yeem xaiv tus qauv zoo raws li lawv xav tau. Nyob rau tib lub sijhawm, nrog rau qhov nrov ntawm cov thev naus laus zis tshiab xws li 5G, cov kev xav tau ntawm duplexers kuj tseem txhim kho tas li, thiab cov tswv yim tsim tshiab thiab cov khoom siv thev naus laus zis yuav txhawb nqa kev txhim kho ntxiv ntawm kev ua haujlwm ntawm duplexers.
5. Cov lus xaus
Nyob rau hauv luv luv, xaiv ib tug duplexer haum rau ib tug tshwj xeeb daim ntawv thov scenario yog ib tug tseem ceeb txuas nyob rau hauv tsim ntawm ib tug kev sib txuas lus system. Los ntawm kev ua tib zoo xav txog daim ntawv thov scenario, kev ntsuas thiab ib puag ncig yuav tsum tau, cov duplexer tsim nyog tshaj plaws tuaj yeem raug xaiv los txhim kho kev ua haujlwm thiab kev ruaj ntseg ntawm kev sib txuas lus. Nyob rau yav tom ntej, raws li kev sib txuas lus thev naus laus zis txuas ntxiv txhim kho, duplexers yuav txuas ntxiv ua lub luag haujlwm tseem ceeb thiab txhawb kev lag luam kev sib txuas lus kom muaj txiaj ntsig zoo thiab txhim khu kev qha.
