Izindaba

Kokubili ama-Multiplexers kanye nama-Power Divider angamadivayisi awusizo ukuze anwebe inani lezimpondo ezingaxhunywa embobeni yomfundi oyedwa. Enye yezinzuzo eziyinhloko ukwehlisa izindleko zohlelo lwe-UHF RFID ngokwabelana ngehadiwe ezibizayo. Kulokhu okuthunyelwe kwebhulogi, sichaza umehluko nokuthi yini okudingeka icatshangwe lapho ukhetha idivayisi elungele isicelo sakho.

Yini i-multiplexer ne-de-multiplexer?

Ukuze siqonde ukuthi uyini umfundi we-RFID i-Multiplexer sizochaza ngokushesha inhloso evamile yama-multiplexers (mux) nama-de-multiplexers (de-mux).

I-multiplexer iyidivayisi ekhetha eyodwa yamasiginali okokufaka ambalwa bese iyidlulisela kokuphumayo.

I-demultiplexer iyisisetshenziswa esidlulisela phambili isignali yokokufaka kokunye kokuphumayo okuningana.

Kokubili i-multiplexer ne-de-multiplexer idinga amaswishi ukuze ukhethe okokufaka kanye/noma okuphumayo. Lawa maswishi anikwe amandla, ngakho-ke i-mux ne-de-mux kungamadivayisi asebenzayo.

Iyini i-multiplexer yokufunda ye-RFID?

I-multiplexer yomfundi we-RFID iyithuluzi eliyinhlanganisela ye-mux ne-de-mux. Iqukethe imbobo yokufaka eyodwa/yokuphumayo kanye nezimbobo eziningi zokukhiphayo/zokokufaka. Imbobo eyodwa ye-mux/de-mux ivamise ukuxhunywa kumfundi we-RFID kuyilapho izimbobo eziningi zinikezelwe ekuxhumekeni kwe-antenna.

Idlulisela isiginali isuka embobeni yomfundi we-RFID iye kwelinye lamachweba okukhiphayo ambalwa noma idlulisele amasiginali ukusuka kwenye yezimbobo zokufaka ezimbalwa ukuya embobeni yokufunda ye-RFID.

Iswishi eyakhelwe ngaphakathi inakekela ukushintsha kwesignali phakathi kwezimbobo kanye nesikhathi sokushintshwa kwayo.

I-multiplexer ye-RFID inika amandla ukuxhumeka kwe-antenna eminingi embotsheni eyodwa yesifundi se-RFID. Ubukhulu besiginali eshintshiwe abuthinteki kakhulu, kungakhathaliseki inani lezimbobo ku-mux/de-mux.

Ngaleyo ndlela, i-multiplexer ye-RFID ye-8-port, isibonelo, inganweba isifundi se-4-port sibe umfundi we-RFID we-32-port.

Amanye amabhrendi aphinde abize i-mux yawo ngokuthi ihabhu.

Yini isihlukanisi samandla (isihlukanisi samandla) nesihlanganisi samandla?

Isihlukanisi samandla (i-splitter) iyithuluzi elihlukanisa amandla. Isihlukanisi samandla esinezimbobo ezi-2 sihlukanisa amandla okokufaka abe okokukhiphayo okubili. Ubukhulu bamandla bufinyezwa ngohhafu ezimbobeni zokuphumayo.

Isihlukanisi samandla sibizwa ngokuthi isihlanganisi samandla uma sisetshenziswa ngokuhlehla.

Nansi ukubuka konke okusheshayo komehluko phakathi kwe-mux nesihlukanisi samandla:

MUX	AMANDLA DIVIDER
I-mux izolahlekelwa amandla njalo kuzo zonke izimbobo ngokunganaki inombolo yezimbobo. Imbobo engu-4, imbobo engu-8, kanye nembobo yembobo engu-16 ngeke ibe nokulahlekelwa okuhlukile ngembobo ngayinye.	Isihlukanisi samandla singahlukanisa amandla ku-½ noma ¼ kuye ngenani lezimbobo ezitholakalayo. Ukwehliswa okukhulu kwamandla kutholwa esikhumulweni ngasinye njengoba inani lamachweba liyakhula.
I-mux iyidivayisi esebenzayo. Kudinga amandla e-DC nokulawula amasiginali ukuze isebenze.	Isihlukanisi samandla siyidivayisi engenzi lutho. Ayidingi okokufaka okwengeziwe kunokufaka kwe-RF.
Akuzona zonke izimbobo ku-multi-port mux ezivuliwe ngesikhathi esisodwa. Amandla e-RF ashintshwa phakathi kwezimbobo. I-antenna eyodwa kuphela exhunyiwe izonikwa amandla ngesikhathi, futhi isivinini sokushintsha sishesha kangangokuthi izinti ngeke ziphuthelwe umaka ofundiwe.	Zonke izimbobo kusihlukanisi samandla esinezimbobo eziningi zithola amandla ngokulinganayo nangesikhathi esifanayo.
Ukuhlukaniswa okuphezulu kakhulu phakathi kwamachweba kufinyelelwa. Lokhu kubalulekile ukuze ugweme ukufundwa kwethegi phakathi kwezimpondo. Ukuzihlukanisa kuvame ukuba kububanzi obungu-35 dB noma ngaphezulu.	Ukuhlukaniswa kwechweba kuncane kakhulu uma kuqhathaniswa ne-Mux. Ukuhlukaniswa kwembobo okujwayelekile kucishe kube ngu-20 dB noma ngaphezulu. Ukufundwa kwethegi ephambanayo kungase kube inkinga.
Inomthelela omncane noma awunawo nhlobo kumsebe we-antenna noma ukukhansela.	Uma isihlukanisi samandla singasetshenziswa ngendlela efanele, izinkundla ze-RF zingakhanselwa, futhi i-RF ye-antenna ingashintshwa kakhulu.
Abukho ubuchwepheshe be-RF obudingekayo ukuze ufake i-Mux. I-Mux kuzodingeka ilawulwe isofthiwe yomfundi we-RFID.	Ubuchwepheshe be-RF bubalulekile ukufaka izihlukanisi zamandla kanye nokuzuza isisombululo esisebenzayo. Isihlukanisi samandla esifakwe ngendlela engafanele singalimaza kakhulu ukusebenza kwe-RF.
Akukho ukuguqulwa kwe-antenna yangokwezifiso okungenzeka	Ukuguqulwa kwe-antenna ngokwezifiso kuyasebenza. Ububanzi be-antenna beam, i-engeli ye-beam, njll. kungashintshwa.

Si Chuan Keenlion Microwave ukukhetha okukhulu, okumboza amaza asuka ku-0.5 kuye ku-50 GHz. Zenzelwe ukuphatha amandla okufaka ama-watts angu-10 kuye kwangama-200 kusistimu yokudlulisa engu-50-ohm. Imiklamo ye-Cavity isetshenziswa, futhi ilungiselelwe ukusebenza okuhle kakhulu.

Imikhiqizo yethu eminingi yakhelwe ngendlela yokuthi ingafakwa ngesikulufu ku-heatsink, uma kunesidingo. Futhi zifaka i-amplitude ehlukile nebhalansi yesigaba, zinamandla okuphatha aphezulu, amazinga amahle kakhulu wokuzihlukanisa futhi ziza nokupakishwa okumazombezombe.

Singakwazi futhi ukwenza ngokwezifiso umkhiqizo we-rf passive ngokuya ngezidingo zakho. Ungafaka i-ukwenza ngokwezifisoikhasi ukuze unikeze imininingwane oyidingayo.