Kwiinethiwekhi zonxibelelwano zanamhlanje, iiDistributed Antenna Systems (DAS) ziye zaba sisisombululo esibalulekileyo kubasebenzi ukujongana nokugubungela ngaphakathi, ukuphuculwa komthamo, kunye nokudluliselwa kwesignali ye-multi-band. Ukusebenza kwe-DAS akuxhomekanga kuphela kwii-antenna ngokwazo kodwa kukwachatshazelwa kakhulu ziinxalenye ezahlukeneyo ezingasebenziyo kwinkqubo, ngakumbi izihluzi zamandla kunye nee-couplers ezibhekisa kwicala. Ukukhetha iinxalenye ezifanelekileyo kumisela ngokuthe ngqo umgangatho wokugubungela isignali kunye nokusebenza kakuhle kwenethiwekhi iyonke.
I. Indima yabaHluli baMandla kwi-DAS
Izihluzi zamandla zisetyenziswa kakhulu ukusasaza ngokulinganayo imiqondiso yesikhululo sesiseko kwiizibuko ezininzi ze-antenna zangaphakathi, nto leyo evumela ukugubungela kwiindawo ezininzi.
Izinto Ezibalulekileyo Omele Uziqwalasele Xa Ukhetha Ii-Power Splitters:
Ukulahleka Kokufakwa
Ukulahleka okuphantsi kokufakwa kubangela ukusebenza kakuhle kokudluliselwa kwesignali. Kwiiprojekthi ezinkulu zokugubungela ngaphakathi, abaqhubi badla ngokukhetha izihluzi zamandla ezilahlekelwa kancinci ukuze kuncitshiswe ukuchithwa kwamandla.
Ukuzahlula kwiZibuko
Ukuzihlukanisa okuphezulu kunciphisa incoko phakathi kwamazibuko, kuqinisekisa ukuzimela kwesignali phakathi kwee-antenna ezahlukeneyo.
Amandla okuphatha amandla
Kwiimeko zokusetyenziswa kwamandla aphezulu (umz., i-DAS kwiindawo ezinkulu), kubalulekile ukukhetha izihluzi zamandla ezikwaziyo ukuphatha amandla aphezulu okufaka ukuqinisekisa ukusebenza okuzinzileyo kwexesha elide.
II. Ukusetyenziswa kweeCouplers kwi-DAS
Ii-Couplers zisetyenziselwa ukukhupha inxalenye yesignali kwisiqu esiphambili ukuze kondliwe ii-antenna kwiindawo ezithile zangaphakathi, ezifana nee-corridors okanye ukusasazwa komgangatho.
Izinto Ezibalulekileyo Omele Uziqwalasele Xa Ukhetha Abatshati:
Ixabiso lokuQhagamshela
Amaxabiso aqhelekileyo okudibanisa aquka i-6 dB, i-10 dB, kunye ne-15 dB. Ixabiso lokudibanisa lichaphazela amandla anikezelwe kwi-antenna. Abaqhubi kufuneka bakhethe ixabiso elifanelekileyo lokudibanisa ngokusekelwe kwiimfuno zokugubungela kunye nenani lee-antenna.
Ulwalathiso kunye nokuZihlukanisa
Ii-couplers ezisebenzisa ulwalathiso oluphezulu zinciphisa ukubonakaliswa kwesignali, nto leyo ephucula uzinzo lwe-trunk link ephambili.
Iimpawu ze-PIM eziphantsi
Kwiinkqubo ze-5G kunye ne-multi-band DAS, ii-couplers ze-Passive Intermodulation (PIM) eziphantsi zibaluleke kakhulu ukunqanda ukuphazamiseka kwe-intermodulation nokuqinisekisa umgangatho wesiginali.
III. Amaqhinga Okukhetha Abasebenzi Ngokusebenzayo
Kwimisebenzi yobunjineli, abaqhubi badla ngokujonga ezi zinto zilandelayo ukuze bakhethe ngokupheleleyo izahluli zamandla kunye nee-couplers:
Isikali seMeko yokuGcina: Izakhiwo ezincinci zeeofisi zingasebenzisa izahluli zamandla ezi-2-way okanye ezi-3-way, ngelixa iinkundla zemidlalo ezinkulu okanye izikhululo zeenqwelo-moya zifuna indibaniselwano yezahluli zamandla ezi-multi-stage kunye nee-couplers ezahlukeneyo.
Inkxaso yeeBhanti ezininzi: I-DAS yanamhlanje kufuneka ixhase uluhlu lweefrikhwensi ukusuka kwi-698–2700 MHz kwaye ide ifikelele kwi-3800 MHz. Abaqhubi kufuneka bakhethe izinto ezingasebenziyo ezihambelana neebhendi zefrikhwensi epheleleyo.
Ibhalansi yeNkqubo: Ngokudibanisa ngokunengqiqo izahluli zamandla kunye nee-couplers, abaqhubi banokuqinisekisa amandla esignali alinganayo kuzo zonke iindawo, bephepha iindawo ezingabonakaliyo zokugubungela okanye ukugubungela okugqithisileyo.
I-Chengdu Concept Microwave Technology CO.,Ltd ngumvelisi ochwephesha weIzixhobo ze-microwave ezingasebenziyo kwinkqubo ye-DAS, kuquka isihluzo se-RF lowpass, isihluzo se-highpass, isihluzo se-bandpass, isihluzo se-notch/i-band stop, i-duplexer, i-Power divider kunye ne-directional coupler. Zonke zingenziwa ngokwezifiso ngokweemfuno zakho.
Wamkelekile kwiwebhu yethu:www.concept-mw.comokanye uqhagamshelane nathi kule dilesi:sales@concept-mw.com
Ixesha leposi: Sep-16-2025