Nidaamyada anteenada la qaybiyey (DAS), sidee bay hawl wadeennadu u dooran karaan kala-qaybiyayaasha korontada iyo isku-xidhayaasha ku habboon?

Shabakadaha isgaarsiinta casriga ah, Nidaamyada Anteenada Qaybsan (DAS) waxay noqdeen xal muhiim u ah hawlwadeennada si ay wax uga qabtaan daboolida gudaha, kor u qaadista awoodda, iyo gudbinta calaamadaha badan. Waxqabadka DAS kuma xirna oo keliya anteenooyinka laftooda laakiin sidoo kale waxaa si weyn u saameeya qaybo kala duwan oo aan firfircoonayn oo ku jira nidaamka, gaar ahaan kala-goysyada awoodda iyo isku-xidhka jihada. Xulashada qaybaha saxda ah si toos ah ayay u go'aamisaa tayada daboolida calaamadaha iyo hufnaanta hawlgalka shabakadda guud ahaan.

I. Doorka Kala-qaybiyayaasha Awoodda ee DAS

Kala-qaybiyayaasha korontada waxaa ugu horreyn loo isticmaalaa in si siman loogu qaybiyo calaamadaha saldhigga saldhiga dekedo badan oo gudaha ah, taasoo suurtogalinaysa daboolida meelo badan.

Tixgelin Muhiim ah Marka La Xulayo Kala-qaybiyayaasha Korontada:

Lumista Gelinta
Lumitaanka hoose wuxuu keenaa hufnaan sare oo gudbinta calaamadaha ah. Mashaariicda daboolida gudaha ee baaxadda weyn, hawl wadeennadu waxay caadi ahaan doortaan kala-qaybiyeyaasha korontada ee khasaaraha yar si loo yareeyo khasaaraha korontada.

Go'doominta Dekedaha
Go'doomin sare waxay yareysaa isku-xidhka u dhexeeya dekedaha, taasoo hubineysa madaxbannaanida calaamadaha ee anteenooyinka kala duwan.

Awoodda Maareynta Awoodda
Xaaladaha codsiga awoodda sare leh (tusaale ahaan, DAS goobaha waaweyn), waa lagama maarmaan in la doorto kala-qaybiyeyaasha awoodda leh ee maareyn kara awoodda sare ee la gelin karo si loo hubiyo hawlgal xasilloon oo muddo dheer ah.

II. Codsiga Isku-xidhayaasha ee DAS

Isku xidhayaasha waxaa loo isticmaalaa in laga soo saaro qayb ka mid ah calaamadda laga bilaabo jirridda ugu weyn si loogu quudiyo anteenooyinka meelaha gaarka ah ee gudaha, sida marinnada ama qaybinta dabaqa.

Tixgelin Muhiim ah Marka La Xulayo Lammaaneyaal:

Qiimaha Isku-xidhka
Qiimaha isku xidhka caadiga ah waxaa ka mid ah 6 dB, 10 dB, iyo 15 dB. Qiimaha isku xidhka ayaa saameeya awoodda loo qoondeeyay anteenooyinka. Hawl-wadeennadu waa inay doortaan qiimaha isku xidhka ee ku habboon iyadoo lagu salaynayo shuruudaha daboolida iyo tirada anteenooyinka.

Toosinta iyo Go'doominta
Xidhiidhiyayaasha jihooyinka sare leh waxay yareeyaan milicsiga calaamadda, taasoo kor u qaadaysa xasilloonida isku xirka jirridda ugu weyn.

Astaamaha PIM ee hooseeya
Nidaamyada 5G iyo kuwa badan ee DAS, isku xidhayaasha Intermodulation-ka ee hooseeya (PIM) ayaa si gaar ah muhiim u ah si looga fogaado faragelinta isdhexgalka iyo hubinta tayada calaamadaha.

III. Istaraatiijiyadaha Xulashada Wax Ku Oolka ah ee Hawl-wadeennada

Marka la adeegsanayo injineernimada, hawl wadeennadu waxay inta badan tixgeliyaan arrimaha soo socda si ay si buuxda u doortaan kala-qaybiyayaasha korontada iyo isku-xidhayaasha:

Heerka Daboolida: Dhismayaasha xafiisyada yaryar waxay isticmaali karaan kala-qaybiyayaasha korontada ee 2-geesoodka ah ama 3-geesoodka ah, halka garoomada waaweyn ama garoomada diyaaradaha ay u baahan yihiin isku-darka kala-qaybiyayaasha korontada ee marxaladaha badan leh iyo isku-xidhayaasha kala duwan.

Taageerada Multi-Band: DAS-ka casriga ah waa inuu taageeraa inta jeer ee u dhaxaysa 698–2700 MHz iyo xitaa inuu gaaro 3800 MHz. Hawl-wadeennadu waxay u baahan yihiin inay doortaan qaybo aan firfircoonayn oo la jaanqaadaya xargaha buuxa ee soo noqnoqda.

Isu-dheellitirka Nidaamka: Iyagoo si macquul ah isugu daraya kala-qaybiyeyaasha korontada iyo isku-xidhayaasha, hawl-wadeennadu waxay hubin karaan xoogga calaamadda ee dheellitiran dhammaan meelaha, iyagoo ka fogaanaya meelaha aan la dabooli karin ama daboolida xad-dhaafka ah.

Chengdu Concept Microwave Technology CO.,Ltd waa soo-saare xirfadle ah oo ka shaqeeya warshadahaQaybaha microwave-ka dadban nidaamka DAS, oo ay ku jiraan shaandhada RF lowpass, shaandhada sare, shaandhada bandpass, shaandhada notch/band stop filter, duplexer, qaybiyaha awoodda iyo isku xidhka jihada. Dhammaantood waxaa loo habeyn karaa iyadoo loo eegayo shuruudahaaga.

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