Nyob rau hauv niaj hnub kev sib txuas lus systems, duplexers, raws li ib tug tseem ceeb xov tooj cua zaus (RF) ntaus ntawv, ua lub luag hauj lwm tseem ceeb ntawm kev sib cais cov kis tau tus mob thiab tau txais cov cim. Nrog rau kev txhim kho txuas ntxiv thiab kev siv thev naus laus zis kev sib txuas lus wireless, duplexers tau nce ntxiv hauv ntau qhov chaw sib txuas lus. Txawm li cas los xij, kev hloov pauv kub, raws li ib puag ncig ib puag ncig sab nraud, feem ntau muaj kev cuam tshuam loj rau kev ua haujlwm ntawm duplexers, tshwj xeeb tshaj yog rau cov tshuab uas muaj qhov siab thiab kev ntseeg siab. Kab lus no yuav tshawb xyuas qhov kub thiab txias ntawm duplexers hauv qhov tob, txheeb xyuas qhov cuam tshuam ntawm qhov kub thiab txias coefficient ntawm nws qhov kev ua tau zoo, thiab sib tham txog cov txheej txheem los txhim kho qhov kub thiab txias ntawm duplexers.
1. Lub hauv paus ntsiab lus ua haujlwm ntawm duplexers
Lub duplexer feem ntau yog tsim los ntawm ob lossis ntau lub lim kom sib cais lossis sib txuas cov teeb liab hauv ntau zaus sib txawv. Nws yog dav siv hauv kev sib txuas lus wireless, xws li hauv kev sib txuas lus mobile, kev sib txuas lus satellite, radar systems, thiab lwm yam. Lub luag haujlwm tseem ceeb ntawm lub duplexer yog tso cai rau cov teeb liab hauv tib lub zaus ua kom muaj kev ywj pheej ntawm ib leeg ntawm kev sib kis thiab kev txais tos, yog li tsis txhob cuam tshuam ntawm kev sib kis thiab tau txais cov cim.
Ib tug duplexer ib txwm muaj cov lim dej, cais tawm, thiab cov khoom sib txuas. Cov khoom no feem ntau yog hloov kho raws li zaus, wavelength, thiab lwm yam RF cov yam ntxwv kom ntseeg tau tias lawv cov haujlwm ib txwm nyob hauv qhov xav tau ntau zaus. Thaum tsim ib lub duplexer, cov khoom siv no yuav tsum muaj kev xaiv siab thiab kev sib cais los xyuas kom meej qhov zoo ntawm cov teeb liab kis tau tus mob.
2. Qhov cuam tshuam ntawm qhov kub coefficient ntawm duplexer kev ua haujlwm
● Cov ntsiab lus ntawm qhov kub thiab txias coefficient
Qhov ntsuas kub coefficient (TC) yog ib qho kev ntsuas uas piav qhia txog kev hloov pauv ntawm cov khoom lossis cov khoom siv raws li qhov ntsuas kub hloov. Nws yog feem ntau hais tias yog "ppm / degree" (ib lab ib degree Celsius), uas qhia txog qhov feem pua ntawm cov kev hloov pauv hauv cov khoom siv thaum kub nce lossis poob los ntawm 1 degree .
Rau ib tug duplexer, qhov kub coefficient feem ntau cuam tshuam nrog cov kev hloov pauv xws li cov lus teb zaus, bandwidth, thiab kev tso tawm ntawm nws cov lim. Thaum qhov kub coefficient ntawm duplexer loj, nws txhais tau hais tias nws tsis xws li cov lus teb zaus hloov pauv loj hauv qhov kub thiab txias, yog li cuam tshuam rau kev ua haujlwm ntawm tag nrho cov kev sib txuas lus.
● Qhov cuam tshuam ntawm ambient kub hloov ntawm duplexer kev ua tau zoo
Kev hloov kub tuaj yeem ua rau muaj kev hloov pauv ntawm cov khoom siv hauv lub duplexer, yog li cuam tshuam rau nws cov kev ua tau zoo. Piv txwv li:
Frequency drift: Lub lim ntawm lub duplexer yuav muaj kev cuam tshuam ntau zaus thaum qhov kub hloov pauv. Qhov no yog vim lub cev lub cev ntawm cov khoom lim (xws li inductors thiab capacitors) nyob rau hauv lub duplexer hloov vim qhov kub thiab txias, ua rau kev khiav hauj lwm zaus hloov. Kev nrawm nrawm tuaj yeem ua rau lub duplexer tsis ua haujlwm zoo, tshwj xeeb tshaj yog nyob rau hauv kev sib txuas lus nrog cov kev xav tau siab, qhov kev hloov zaus tuaj yeem ua rau lub teeb liab poob lossis yuam kev.
Kev poob siab ntau ntxiv: Kev hloov pauv kub kuj tseem tuaj yeem ua rau muaj kev hloov pauv hauv duplexer qhov kev tso tawm poob. Thaum qhov kub thiab txias nce, qhov conductivity thiab electromagnetic yoj propagation yam ntxwv ntawm cov khoom yuav hloov, yog li ua rau poob nyob rau hauv lub teeb liab kis tau tus mob thiab txo cov kev sib kis efficiency ntawm lub system.
Kev hloov pauv bandwidth: Lub bandwidth ntawm duplexer kuj tseem tuaj yeem hloov pauv thaum kub hloov. Yog tias qhov ntsuas kub coefficient loj, kev hloov pauv bandwidth yuav ua rau muaj teeb meem cuam tshuam, uas cuam tshuam rau kev sib txuas lus zoo.
Txo kev rho tawm: Kev rho tawm yog ib qho tseem ceeb ntawm kev ua tau zoo ntawm duplexer, uas qhia tau hais tias lub teeb liab muaj peev xwm cais tawm ntawm cov zaus sib txawv. Kev hloov pauv kub yuav ua rau muaj kev hloov pauv ntawm kev sib cais, uas ua rau muaj kev cuam tshuam ntawm cov teeb liab thiab txo qhov kev ruaj ntseg ntawm kev sib txuas lus.
● Kev cuam tshuam nyob rau hauv qhov kub thiab txias ib puag ncig
Hauv cov cheeb tsam uas muaj qhov kub thiab txias hloov pauv, qhov kev hloov pauv ntawm duplexer yuav yog qhov tseem ceeb dua. Tshwj xeeb tshaj yog nyob rau hauv ib co huab cua kub, xws li qhov chaw ib puag ncig ntawm satellite kev sib txuas lus systems, kev sib txuas lus systems ntawm high-ceev tsheb ciav hlau, tub rog kev sib txuas lus thiab lwm yam teb, lub duplexer yuav tsum muaj peev xwm ua hauj lwm stably kom tsis txhob muaj kev puas tsuaj los ntawm kub hloov.
Piv txwv li, thaum lub chaw ua hauj lwm kub ntawm lub duplexer nce los ntawm -40 degree mus rau +85 degree, nws zaus drift yuav ncav cuag ob peb MHz, uas ua rau lub teeb liab poob los yog distortion ntawm cov kev sib txuas lus system. Tsis tas li ntawd, qhov zaus offset kuj tseem yuav ua rau qhov tsis sib xws ntawm cov duplexer thiab lwm yam RF, yog li cuam tshuam rau kev ua haujlwm ruaj khov ntawm tag nrho cov kab ke.
3. Cov txheej txheem los txhim kho qhov kub thiab txias ntawm duplexer
Txhawm rau txhim kho kev ruaj ntseg ntawm duplexer nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias thiab txo qhov cuam tshuam ntawm qhov kub thiab txias ntawm nws qhov kev ua tau zoo, engineers tau siv qee txoj kev tsim qauv zoo thiab kev siv tshuab.
● Xaiv cov khoom uas tsis tshua muaj kub coefficient
Qhov kub thiab txias stability ntawm duplexer yog ze ze rau cov yam ntxwv ntawm nws cov khoom siv sab hauv. Xaiv cov ntaub ntawv uas tsis tshua muaj kub coefficient tuaj yeem txo qhov cuam tshuam ntawm qhov kub thiab txias hloov ntawm kev ua haujlwm ntawm duplexer. Piv txwv li, C-hom quartz cov khoom muaj qhov kub tsis tshua muaj coefficient thiab tuaj yeem tswj tau cov lus teb ruaj khov thiab bandwidth, yog li nws feem ntau siv rau hauv kev tsim ntawm duplexers.
Tsis tas li ntawd, cov khoom siv hlau thiab ceramic siv los ua cov ntxaij lim dej thiab lwm yam khoom siv hauv duplexer yuav tsum muaj cov thermal expansion coefficient tsawg thiab cov khoom siv hluav taws xob ruaj khov kom ruaj khov ntawm qhov sib txawv ntawm qhov kub thiab txias.
● Siv cov cuab yeej siv hluav taws xob kub
Txhawm rau txhawm rau txhim kho qhov kub thiab txias ntawm duplexer, kev siv tshuab hluav taws xob kub tuaj yeem siv tau. Los ntawm kev sib koom ua ke ntawm qhov ntsuas kub hauv lub duplexer thiab sib txuas nrog cov nyiaj them nqi hluav taws xob, qhov system tsis tuaj yeem hloov kho thaum qhov kub hloov pauv los cuam tshuam qhov cuam tshuam ntawm qhov kub thiab txias ntawm kev ua haujlwm ntawm duplexer. Piv txwv li, lub ntsuas kub ntsuas yog siv los saib xyuas qhov kub thiab txias hloov ntawm duplexer hauv lub sijhawm. Thaum qhov kub thiab txias tshaj qhov preset ntau, cov nyiaj them nqi hluav taws xob yuav kho qhov kev khiav hauj lwm zaus lossis lwm yam ntawm cov lim kom rov qab mus rau lub xeev zoo.
Qee qhov kev ua haujlwm siab duplexers kuj tseem siv cov kev ntsuas kub ntawm digital algorithms kom cov zaus thiab bandwidth ntawm lub kaw lus ruaj khov los ntawm kev kho lub xeev ua haujlwm ntawm cov lim dej hauv lub sijhawm.
● Optimize tus qauv tsim ntawm duplexer
Nyob rau hauv tus txheej txheem tsim ntawm lub duplexer, optimizing nws structural layout kuj zoo txhim kho nws kub stability. Piv txwv li, kev siv thermal symmetry tsim tuaj yeem ua rau lub duplexer sib npaug faib cov cua sov thaum qhov kub hloov pauv, zam qhov xwm txheej ntawm qhov kub thiab txias hauv cheeb tsam siab dhau los yog qis dhau, yog li txo qhov cuam tshuam ntawm qhov kub thiab txias ntawm kev ua haujlwm.
Tsis tas li ntawd, qee qhov duplexers siv qhov ntsuas kub, xws li cov khoom siv hauv cov cua sov lossis cov dab dej kub, kom muaj kev ruaj ntseg ntawm qhov kub thiab txias thiab tsis txhob cuam tshuam qhov kub thiab txias ntawm kev ua haujlwm.
● Kev sim thiab tshuaj xyuas nruj
Qhov kub thiab txias ntawm duplexer nyob ntawm qhov tsis tsuas yog nyob ntawm cov khoom siv thiab tsim, tab sis kuj nyob ntawm cov txheej txheem tsim khoom thiab kev tswj kom zoo. Kev ntsuas kub nruj thiab kev tshuaj ntsuam xyuas yog qhov tsim nyog heev thaum lub sijhawm tsim khoom. Los ntawm kev simulating ntau qhov chaw kub thiab ntsuas qhov kev hloov pauv ntawm duplexer, cov khoom tsis ruaj khov tuaj yeem tshawb pom thiab tshem tawm kom ntseeg tau tias cov duplexers muag ntawm lub khw tuaj yeem ua haujlwm ruaj khov nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias.
4. Cov ntsiab lus
Qhov kub thiab txias ntawm duplexer yog ib qho tseem ceeb cuam tshuam rau nws cov kev ua tau zoo, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias hloov pauv, qhov uas nws cov kev hloov pauv yuav ua rau muaj kev tsis sib haum xeeb hauv kev sib txuas lus. Yog li ntawd, kev nkag siab txog qhov cuam tshuam ntawm qhov kub thiab txias coefficient ntawm kev ua haujlwm ntawm duplexer thiab siv txoj hauv kev tsim kom zoo rau nws yog tus yuam sij rau kev ua haujlwm ruaj khov ntawm duplexer. Los ntawm kev xaiv cov ntaub ntawv uas tsis tshua muaj kub coefficients, txais yuav kub them technology, optimizing cov qauv tsim, thiab nruj kev soj ntsuam thiab soj ntsuam, qhov kub thiab txias stability ntawm lub duplexer yuav ho txhim khu kev qha, yog li txhim kho kev ua tau zoo thiab kev cia siab ntawm tag nrho cov kev sib txuas lus system.
Nrog kev nce qib txuas ntxiv ntawm kev sib txuas lus wireless, cov kev xav tau rau kev ua haujlwm duplexer tau nce siab dua thiab siab dua. Nyob rau hauv lub neej yav tom ntej, nrog rau kev txhim kho ntawm qhov kub thiab txias kev siv technology thiab cov khoom siv science, qhov kub thiab txias stability ntawm duplexers yuav raug txhim kho ntxiv, muab kev ruaj khov thiab muaj txiaj ntsig zoo rau ntau yam kev sib txuas lus siab.
