Kuthungelwano lwangoku lonxibelelwano, IiNkqubo ze-Antenna eziSasazo (i-DAS) ziye zaba sisisombululo esibalulekileyo kubaqhubi ukujongana nokhuseleko lwangaphakathi, ukuphuculwa kwamandla, kunye nokuhanjiswa komqondiso wamaqela amaninzi. Ukusebenza kwe-DAS akuxhomekekanga kuphela kwii-eriyali ngokwazo kodwa kukwaphenjelelwa kakhulu ngamacandelo ahlukeneyo okwenziwa kwenkqubo ngaphakathi kwenkqubo, ngakumbi izahlulo zamandla kunye nee-couplers zalathiso. Ukukhetha amacandelo afanelekileyo kuqinisekisa ngokuthe ngqo umgangatho wokugubungela umqondiso kunye nokusebenza kakuhle kwenethiwekhi ngokubanzi.
I. Indima yoLwahluli lwaMandla kwiDAS
Izahluli zamandla zisetyenziswa ikakhulu ukusasaza ngokulinganayo imiqondiso yesikhululo sesiseko kumazibuko ee-eriyali ezininzi zangaphakathi, ezivumela ukugqunywa kwiindawo ezininzi.
Iingqwalasela eziphambili xa ukhetha i-Splitters zamandla:
Ilahleko yokuFaka
Ilahleko yokufaka esezantsi iphumela kwimpumelelo ephezulu yokuhanjiswa komqondiso. Kwiiprojekthi ezinkulu zokhuselo lwangaphakathi, abaqhubi badla ngokukhetha ilahleko ephantsi yezahlulo zamandla ukunciphisa inkcitho yombane.
Ukwahlulwa kweZibuko
Ukwahlukaniswa okuphezulu kunciphisa i-crosstalk phakathi kwamazibuko, iqinisekisa ukuzimela komqondiso phakathi kwee-antenna ezahlukeneyo.
Amandla okuphatha amandla
Kwiimeko zokusetyenziswa kwamandla aphezulu (umzekelo, i-DAS kwiindawo ezinkulu), kubalulekile ukukhetha abahluli bamandla abanakho ukuphatha amandla aphezulu okufaka ukuqinisekisa ukusebenza okuzinzileyo kwexesha elide.
II. Ukusetyenziswa kwabatshatileyo kwiDAS
Izibini ezitshatileyo zisetyenziselwa ukukhupha inxalenye yomqondiso kwi-trunk engundoqo ukondla i-eriyali kwiindawo ezithile zangaphakathi, ezifana neepaseji okanye ukuhanjiswa komgangatho.
Imiba ephambili yokuqwalaselwa xa ukhetha abantu abatshatileyo:
Ixabiso lokudibanisa
Amanani okudibanisa aqhelekileyo aquka i-6 dB, i-10 dB, kunye ne-15 dB. Ixabiso lokudibanisa lichaphazela amandla abelwe ii-eriyali. Abaqhubi kufuneka bakhethe ixabiso elifanelekileyo lokudibanisa ngokusekelwe kwiimfuno zokhuselo kunye nenani lee-eriyali.
Directivity kunye Nokwahlulwa
I-couplers ephezulu-directivity inciphisa ukubonakalisa umqondiso, ukuphucula ukuzinza kwekhonkco eliphambili le-trunk.
Iimpawu zePIM eziphantsi
Kwiinkqubo ze-5G kunye nee-multi-band ze-DAS, i-Passive Intermodulation ephantsi (PIM) i-couplers ibaluleke kakhulu ukuphepha ukuphazamiseka kwe-intermodulation kunye nokuqinisekisa umgangatho wesignali.
III. IziCwangciso eziSebenzayo zokuKhetha abaSebenzisi
Kusasazo lobunjineli, abaqhubi bahlala bejonga le miba ilandelayo ukukhetha ngokubanzi abahluli bamandla kunye nee-couplers:
I-Caverage Scenario Scale: Izakhiwo zeeofisi ezincinci zinokusebenzisa iindlela ezi-2 okanye ezi-3 zokwahlula amandla, ngelixa amabala emidlalo amakhulu okanye izikhululo zeenqwelo moya zifuna indibaniselwano yamacandelo amaninzi ahlula amandla kunye nee-couplers ezahlukeneyo.
Inkxaso ye-Multi-Band: I-DAS yanamhlanje kufuneka ixhase uluhlu lwamaza ukusuka kwi-698-2700 MHz kwaye yandise ukuya kwi-3800 MHz. Abasebenzisi kufuneka bakhethe izakhi zokwenziwa ezihambelana neebhendi zamaza apheleleyo.
Ulungelelwaniso lweSistim: Ngokudibanisa ngokwengqiqo i-splitters zamandla kunye nee-couplers, abaqhubi banokuqinisekisa amandla omqondiso olungeleleneyo kuzo zonke iindawo, ukuphepha ukugubungela iindawo ezingaboniyo okanye ukugubungela ngaphezulu.
I-Chengdu Concept Microwave Technology CO., Ltd ngumvelisi oqeqeshiweyo weAmacandelo e-microwave esebenzayo yenkqubo ye-DAS, kubandakanywa ne-RF lowpass filter, i-highpass filter, i-bandpass filter, i-notch filter / i-band stop filter, i-duplexer, i-Power divider kunye ne-coupler eyalathisayo. Zonke zinokulungiswa ngokweemfuno zakho.
Wamkelekile kwiwebhu yethu :www.concept-mw.comokanye ufikelele kuthi:sales@concept-mw.com
Ixesha lokuposa: Sep-16-2025