Niki aDuplexer?
Duplexer nigikoresho cyemerera itumanaho ryibice bibiri kumuyoboro umwe. Muri sisitemu yitumanaho rya radio, itandukanya iyakirwa na transmitter mugihe ibemerera gusangira antene rusange. Sisitemu nyinshi zisubiramo radio zirimo duplexer.
Duplexers igomba:
Witegure gukora mumurongo wumurongo ukoreshwa nuwakiriye na transmitter kandi ugomba kuba ushoboye gukoresha imbaraga zisohoka za transmitter.
Tanga kwangwa bihagije urusaku rwohereza ibintu biboneka kuri frequency yakira, kandi bigomba kuba byarateguwe kugirango bikore, cyangwa bitarenze, gutandukanya inshuro hagati ya transmitteri niyakira.
Tanga kwigunga bihagije kugirango wirinde kwakirwa.
Diplexer vs Duplexer. Ni irihe tandukaniro?
Diplexer nigikoresho cyoroshye gihuza ibyinjijwe bibiri mubisohoka bisanzwe. Ibimenyetso ku nyongeramusaruro 1 na 2 zifata imirongo itandukanye. Kubwibyo, ibimenyetso ku nyongeramusaruro 1 na 2 birashobora kubana kubisohoka bitabangamiye. Birazwi kandi nka cross band combiner. Duplexer nigikoresho cyoroshye cyemerera itumanaho ryibiri (duplex) itumanaho no kwakira imirongo mumurongo umwe hejuru yinzira imwe.
Ubwoko bwaDuplexers
Hariho ubwoko bubiri bwibanze bwa duplexers: Band Pass na Band Kwanga.
Antenna isanzwe hamwe na duplexer
Inyungu igaragara yo gukoresha duplexer nuko dushobora kohereza no kwakira hamwe na antenne imwe gusa. Hamwe n'umwanya ku minara kuri sitasiyo ya sitasiyo kuri premium, iyi ninyungu nyayo.
Muri sisitemu imwe ya sisitemu, aho hariho transmitter imwe gusa niyakira imwe, gukoresha duplexer kugirango basangire antenne rusange ni amahitamo ataziguye. Ariko, mugihe imiyoboro myinshi ihuriweho hamwe no kohereza no kwakira imiyoboro isuzumwa, ibintu biba bigoye.
Ingaruka nyamukuru yo gukoresha duplexers muri sisitemu nyinshi zirashobora kugaragara mugihe dusuzumye transmitter intermodulation. Nukuvanga ibimenyetso byinshi byohereza kuri antenne.
Tandukanya antenne ya Tx na Rx
Niba dukoresha transmit zitandukanye kandi twakira antene, bifata umwanya munini kuminara.
Inyungu nini nuko, mugihe pasiporo intermodulation ikomeza kugaragara muburyo bumwe hagati yikimenyetso cyandujwe, ntihakiri inzira itaziguye kugirango ibyo bicuruzwa bigerweho
uwakira. Ahubwo, kwigunga hagati yo kohereza no kwakira antene bitanga ubundi burinzi. Niba imiyoboro hamwe niyakira byateguwe muburyo bumwe (urugero: kimwe hejuru yundi, muri rusange hamwe na antenne yakira hejuru yumunara), noneho kwigunga birenze 50dB birashoboka kugerwaho.
Mugusoza rero, kuri sisitemu imwe ya sisitemu, jya imbere ukoreshe duplexer. Ariko kuri sisitemu nyinshi, mugihe antene zitandukanye zizagutwara umwanya munini kuri buri munara, ubu ni bwo buryo bworoshye. Irinda sisitemu yawe neza kubangamira cyane intermodulation nkibisubizo byibyo bito cyane kandi bigoye gutandukanya amakosa yo guterana cyangwa kubungabunga.
UHF DuplexerUmushinga
Impamvu hano ni ukubika kwishyiriraho umugozi murugo.
Iyo yubatswe, inzu yanjye yashyizwemo umugozi umwe wa coaxial drop kuva hejuru kugeza muri salo, byihishe neza murukuta. Iyi nsinga itwara imiyoboro ya TV ya DVB kuva kuri antenne yo hejuru hejuru ya TV muri salo. Mfite kandi agasanduku ka tereviziyo ya kabili muri salo nifuza gukwirakwiza hafi yinzu kandi amp yo kugabura ishyirwa mubyumba kugirango byoroshye kugera mubyumba byose. Kubwibyo, Duplexer kumpera zombi zumugozi wigitonyanga izayemerera gutwara DVB-TV munsi ya coax na Cable-TV hejuru ya coax icyarimwe, itanga mpitamo Frequency ikwiye yo gukwirakwiza Cable-TV.
Multiplexes ya TV itangirira kuri 739MHz ikagera kuri 800MHz. Ikwirakwizwa rya Cable-TV rirashobora gutegurwa kuva 471-860 MHz. Nzashyira mubikorwa igice gito-cyo gutwara CableTV hejuru ya coax kuri ~ 488MHz nigice kinini-cyo gutwara DVB-TV hasi. Igice cyo hasi kizanatwara DC kugirango igabanye gukwirakwiza amp murwego rwo hejuru hamwe na Magic-eye kure igenzura kode inyuma ya Cable-TV.
Turashobora kandi guhitamo Cavity Duplexer dukurikije ibyo usabwa. Urashobora kwinjiza urupapuro rwihariye kugirango utange ibisobanuro ukeneye.
Igihe cyo kohereza: Nzeri-24-2022
