Hauv kev sib txuas lus niaj hnub no, Distributed Antenna Systems (DAS) tau dhau los ua qhov kev daws teeb meem tseem ceeb rau cov tswv lag luam los daws cov kev pabcuam sab hauv tsev, kev txhim kho lub peev xwm, thiab ntau lub teeb liab sib kis. Qhov kev ua tau zoo ntawm DAS tsis yog nyob ntawm tus kav hlau txais xov lawv tus kheej nkaus xwb tab sis kuj tseem cuam tshuam los ntawm ntau yam tsis muaj zog hauv lub cev, tshwj xeeb tshaj yog cov hluav taws xob sib cais thiab cov kev taw qhia txuas. Xaiv cov khoom tsim nyog ncaj qha txiav txim siab cov teeb liab kev pab cuam zoo thiab tag nrho cov kev ua haujlwm hauv network.
I. Lub luag haujlwm ntawm Fais Fab Splitters hauv DAS
Fais fab splitters feem ntau yog siv los faib cov chaw nres tsheb hauv paus rau ntau qhov chaw nres nkoj hauv tsev, ua kom muaj kev pab cuam thoob plaws ntau thaj chaw.
Cov ntsiab lus tseem ceeb thaum xaiv Fais Fab Splitters:
Insertion Poob
Kev poob qis qis ua rau cov teeb liab sib kis tau zoo dua. Hauv cov phiaj xwm loj hauv tsev, cov neeg ua haujlwm feem ntau xaiv rau cov hluav taws xob poob qis kom txo qis hluav taws xob tsawg.
Chaw nres nkoj Isolation
Kev sib cais siab txo qis crosstalk ntawm cov chaw nres nkoj, kom ntseeg tau tias muaj kev ywj pheej ntawm cov kav hlau txais xov sib txawv.
Muaj peev xwm tuav tau
Hauv cov xwm txheej siv hluav taws xob siab (xws li DAS hauv cov chaw loj), nws yog ib qho tseem ceeb uas yuav tau xaiv lub hwj chim splitters uas muaj peev xwm tuav tau ntau dua input zog los xyuas kom meej lub sij hawm ruaj khov.
II. Daim Ntawv Thov Couplers hauv DAS
Cov couplers yog siv los rho tawm ib feem ntawm lub teeb liab los ntawm lub cev lub cev los pub cov kav hlau txais xov hauv cov chaw sab hauv tsev, xws li txoj kev hauv tsev lossis hauv pem teb.
Kev txiav txim siab tseem ceeb thaum xaiv Couplers:
Coupling nqi
Cov kev sib txuas uas muaj xws li 6 dB, 10 dB, thiab 15 dB. Tus nqi coupling cuam tshuam rau lub zog faib rau cov kav hlau txais xov. Cov neeg ua haujlwm yuav tsum xaiv qhov tsim nyog coupling tus nqi raws li qhov yuav tsum tau muaj kev pab them nqi thiab tus naj npawb ntawm cov kav hlau txais xov.
Kev taw qhia thiab kev cais tawm
High-directivity couplers txo cov teeb liab kev xav, txhim khu kev ruaj ntseg ntawm lub ntsiab lub cev txuas.
Cov yam ntxwv qis PIM
Hauv 5G thiab ntau-band DAS systems, qis Passive Intermodulation (PIM) couplers yog qhov tseem ceeb tshwj xeeb kom tsis txhob cuam tshuam kev cuam tshuam thiab ua kom cov teeb liab zoo.
III. Cov tswv yim xaiv tswv yim rau cov neeg ua haujlwm
Hauv kev xa tawm engineering, cov neeg ua haujlwm feem ntau xav txog cov hauv qab no kom nkag siab xaiv lub zog hluav taws xob thiab cov txuas txuas:
Kev Pabcuam Scenario Scale: Cov tsev ua haujlwm me tuaj yeem siv 2-txoj kev lossis 3-txoj kev fais fab splitters, thaum lub chaw ntau pob lossis tshav dav hlau yuav tsum muaj kev sib txuas ntawm ntau theem hluav taws xob splitters thiab ntau yam txuas.
Multi-Band Support: Niaj hnub nimno DAS yuav tsum txhawb ntau zaus ntawm 698-2700 MHz thiab txawm txuas mus rau 3800 MHz. Cov neeg ua haujlwm yuav tsum xaiv cov khoom siv passive uas sib haum nrog cov kab ntau zaus.
Qhov System Balance: Los ntawm kev sib xyaw ua ke ntawm cov hluav taws xob sib cais thiab cov khoom sib txuas, cov neeg ua haujlwm tuaj yeem ua kom muaj lub zog sib npaug ntawm txhua qhov chaw, zam qhov chaw tsis pom kev lossis kev pab them nqi ntau dhau.
Chengdu Concept Microwave Technology CO., Ltd yog lub chaw tsim khoom ntawm cov khoom siv hluav taws xobPassive microwave Cheebtsam rau DAS system, suav nrog RF lowpass lim , highpass lim , bandpass lim , notch lim / band nres lim , duplexer , Fais fab divider thiab directional coupler . Tag nrho lawv tuaj yeem kho raws li koj qhov kev xav tau.
Txais tos rau peb lub vev xaib:www.concept-mw.comlos yog hu rau peb ntawm:sales@concept-mw.com
Post lub sij hawm: Sep-16-2025