Eli nqaku linika isishwankathelo sezinto ze-elektroniki zangaphakathi zesixhobo sokuphinda isignali esiphathwayo. Bambalwa abavelisi abatyhila izinto zangaphakathi zezixhobo zabo zokuphinda isignali kubathengi. Enyanisweni, uyilo kunye nomgangatho wezi zinto zangaphakathi zidlala indima ebalulekileyo ekusebenzeni ngokubanzi kwesixhobo.isiphindaphindi sesignali yeselula.
Ukuba ungathanda ingcaciso elula yendlela esebenza ngayo i-mobile signal repeater,Cofa apha.
Imigaqo esisiseko yeSignali eSelfowuni ephindayo
Njengoko kubonisiwe kumzobo ongasentla, umgaqo osisiseko we-mobile signal repeater kukwandisa imiqondiso ngamanqanaba. I-mobile signal repeaters zanamhlanje ezikwimarike zifuna amanqanaba amaninzi okukhulisa okuncinci ukuze kufezekiswe i-output gain efunekayo. Ke ngoko, i-gain kumzobo ongasentla imele iyunithi enye yokuzuza. Ukuze kufikelelwe kwi-gain yokugqibela, kufuneka amanqanaba amaninzi okukhulisa.
Nantsi intshayelelo kwiimodyuli eziqhelekileyo ezifumaneka kwi-repeater yesignali yeselula:
1. Imodyuli yoKwamkelwa kweSignali
Imodyuli yokwamkela inoxanduva lokufumana imiqondiso yangaphandle, ngokuqhelekileyo evela kwizikhululo zesiseko okanye kwii-antenna. Ibamba imiqondiso yerediyo ethunyelwa sisikhululo sesiseko ize iyiguqule ibe yimiqondiso yombane enokucutshungulwa yi-amplifier. Imodyuli yokwamkela idla ngokuquka:
Izihluzi: Ezi zisusa imiqondiso yefrikhwensi engafunekiyo kwaye zigcina iibhendi zefrikhwensi yesignali yeselula ezifunekayo.
Isandisi-sandisi-sandi esiphantsi (LNA): Oku kwandisa isignali engenayo ebuthathaka ngelixa kunciphisa ingxolo eyongezelelweyo.
Izinto zangaphakathi-isiphindaphindo sesignali yeselula ekhaya
2. Imodyuli yoLungiso lweSignali
Iyunithi yokucubungula isignali iyayandisa kwaye ilungise isignali efunyenweyo. Iquka ngokubanzi:
I-Modulator/Demodulator (iModem): Oku kuguqula kwaye kunciphise isignali ukuqinisekisa ukuba ihambelana neenkqubo zonxibelelwano ezisemgangathweni.
Iprosesa yeSignali yeDijithali (i-DSP): Inoxanduva lokucubungula nokuphucula isignali ngokufanelekileyo, ukuphucula umgangatho wesignali kunye nokunciphisa ukuphazamiseka.
Ulawulo Lokufumana Ingeniso Oluzenzekelayo (AGC): Lungisa ingeniso yesignali ukuqinisekisa ukuba ihlala kumanqanaba afanelekileyo—ukuthintela ubuthathaka besignali kunye nokwandiswa okugqithisileyo okunokubangela ukuphazamiseka okanye ukuphazamisa ezinye izixhobo.
3. Imodyuli yokwandisa
I-power amplifier (PA) yonyusa amandla esignali ukuze yandise uluhlu lwayo lokugubungela. Emva kokucubungula isignali, i-power amplifier iyandisa isignali ukuya kumandla afunekayo kwaye iyidlulisele nge-antenna. Ukukhetha i-power amplifier kuxhomekeke kumandla afunekayo kunye nendawo yokugubungela. Kukho iintlobo ezimbini eziphambili:
Ii-Linear Amplifiers: Ezi zigcina umgangatho kunye nokucaca kwesignali ngaphandle kokuphazamiseka.
Ii-Amplifiers ezingezizo ezithe ngqo: Zisetyenziswa kwiimeko ezikhethekileyo, ngokuqhelekileyo ekugubungeleni indawo ebanzi, nangona zinokubangela ukuphazamiseka kwesignali.
4. Iimodyuli zoLawulo lweMpendulo kunye noThintelo lokuphazamiseka
Imodyuli yokuNciphisa impendulo: Xa i-amplifier ithumela isignali enamandla kakhulu, inokubangela impendulo kwi-antenna efumanayo, nto leyo ekhokelela ekuphazamisekeni. Iimodyuli zokuNciphisa impendulo zinceda ekupheliseni oku kuziphazamisa.
Imodyuli Yokwahlukanisa: Ithintela ukuphazamiseka phakathi kwemiqondiso yokwamkela neyokudlulisa, iqinisekisa ukusebenza ngokufanelekileyo kwe-amplifier.
Ukunciphisa ingxolo kunye neeFiltha: Nciphisa ukuphazamiseka kwesignali yangaphandle, ukuqinisekisa ukuba isignali ihlala icocekile kwaye inamandla.
5. Imodyuli yoThumelo lweSignali
Imodyuli yoThumelo: Le modyuli ithumela isignali ecwangcisiweyo neyandisiweyo nge-antenna yothumelo kwindawo egubungelayo, iqinisekisa ukuba izixhobo eziphathwayo zifumana isignali ephuculweyo.
Umlawuli woMbane woThumelo: Ulawula amandla othumelo ukuthintela ukwandiswa kakhulu, okunokubangela ukuphazamiseka, okanye ukwandiswa kancinci, okunokubangela iimpawu ezibuthathaka.
I-Antenna Eqondisa Ulwalathiso: Ukuze kubekho isignali egxile ngakumbi, i-antenna eqondisa ulwalathiso ingasetyenziswa endaweni ye-omnidirectional, ingakumbi xa kufikwa kwindawo enkulu okanye kuphuculwe isignali.
6. Imodyuli yoNikezelo lwaMandla
Iyunithi yoNikezo lwaMandla: Ibonelela ngombane ozinzileyo kwi-repeater yesignali, ngesiqhelo nge-AC-to-DC converter, ukuqinisekisa ukuba isebenza ngokufanelekileyo phantsi kweemeko ezahlukeneyo zevolthi.
Imodyuli yoLawulo lwaMandla: Izixhobo eziphezulu zingabandakanya neempawu zolawulo lwamandla ukuphucula ukusebenza kakuhle kwamandla kunye nokwandisa ubomi besixhobo.
7. Imodyuli yoKuchitha uBushushu
Inkqubo Yokupholisa: Iziphindaphindi zesignali zivelisa ubushushu ngexesha lokusebenza, ingakumbi ii-power amplifier kunye nezinye izinto ezinamandla aphezulu. Inkqubo yokupholisa (ezifana nezitshisi zobushushu okanye iifeni) inceda ukugcina ubushushu obusebenzayo obufanelekileyo ukuthintela ubushushu obugqithisileyo kunye nomonakalo kwisixhobo.
8. Iphaneli yoLawulo kunye neZibonakaliso
Iphaneli yoLawulo: Ezinye iziphindaphindi zesignali yeselula ziza nephaneli yokubonisa evumela abasebenzisi ukuba balungise useto, balungise ukusebenza, kwaye bajonge inkqubo.
Izalathisi ze-LED: Ezi zibane zibonisa imeko yokusebenza kwesixhobo, kubandakanya amandla esignali, amandla, kunye nemeko yokusebenza, nto leyo enceda abasebenzisi ukuba baqonde ukuba i-repeater isebenza ngokuchanekileyo na.
9. Iichweba zoQhagamshelo
Izibuko Lokufaka: Lisetyenziselwa ukudibanisa ii-antenna zangaphandle (umz., izihlanganisi zohlobo lwe-N okanye uhlobo lwe-F).
Izibuko Lokuphuma: Lokudibanisa ii-antenna zangaphakathi okanye ukuthumela imiqondiso kwezinye izixhobo.
Izibuko Lohlengahlengiso: Ezinye iziphindaphindo zingabandakanya iizibuko zokulungisa useto lwe-gain kunye ne-frequency.
10. Uyilo lweNdawo ebiyelweyo kunye noKhuseleko
I-repeater's enclosure idla ngokwenziwa ngentsimbi, enceda ukukhusela ukuphazamiseka kwangaphandle kunye nokuthintela ukuphazamiseka kwe-electromagnetic (EMI). Ezinye izixhobo zikwanazo neendawo ezingangeni manzi, ezingangeni uthuli, okanye ezingangeni shock ukumelana neendawo zangaphandle okanye ezinzima.
Izinto zangaphakathi-isiphindaphindo sesignali yeselfowuni yorhwebo
Isixhobo sokuphinda isignali esiphathwayo siphucula imiqondiso ngomsebenzi odibeneyo wezi modules. Inkqubo ifumana kwaye ikhulise isignali ngaphambi kokuba idlulisele isignali eqinisiweyo kwindawo yokugubungela. Xa ukhetha isixhobo sokuphinda isignali esiphathwayo, kubalulekile ukuqinisekisa ukuba iibhendi zaso zefrikhwensi, amandla, kunye nokuzuza zihambelana neemfuno zakho ezithile, ingakumbi kwiindawo ezinzima ezifana neetonela okanye amagumbi angaphantsi apho ukumelana nokuphazamiseka kunye nokukwazi ukucubungula isignali kubalulekile.
Ngoko ke, ukukhethaumenzi othembekileyo wokuphindaphinda isignali yeselulasisitshixo.I-Lintratek, eyasekwa ngo-2012, inamava angaphezu kweminyaka eli-13 ekuveliseni iziphindaphindi zesignali—ukusuka kwiindawo zokuhlala ukuya kwiiyunithi zorhwebo, kuquka iziphindaphindi ze-fiber optic kunye nezitishi zokusasaza ngqo. Le nkampani ifumana izixhobo ezikumgangatho ophezulu zeemveliso zayo, iqinisekisa ukusebenza okuthembekileyo.
Ixesha leposi: Novemba-27-2024