Indima ye-RF front-end ezinhlelweni zokuxhumana

Ezinhlelweni zokuxhumana zanamuhla, i-Radio Frequency (RF) front-end idlala indima ebalulekile ekwenzeni ukuxhumana okungenantambo kube ngcono. Njengoba ibekwe phakathi kwe-antenna kanye ne-digital baseband, i-RF front-end inesibopho sokucubungula amasignali angenayo naphumayo, okwenza ibe yingxenye ebalulekile kumadivayisi asukela kuma-smartphone kuya kuma-satellite.

Kuyini i-RF Front-End?
I-RF front-end inezingxenye ezahlukahlukene ezisingatha ukwamukelwa kanye nokudluliswa kwesignali. Izinto ezibalulekile zifaka phakathi ama-power amplifiers (PA), ama-low-noise amplifiers (LNA), izihlungi, kanye nama-switch. Lezi zingxenye zisebenza ndawonye ukuqinisekisa ukuthi amasignali adluliswa ngamandla nokucaca okufunwayo, ngenkathi kunciphisa ukuphazamiseka nomsindo.

Ngokuvamile, zonke izingxenye eziphakathi kwe-antenna kanye ne-RF transceiver zibizwa ngokuthi i-RF front-end, okuqinisekisa ukudluliswa kwesignali engenantambo okuphumelelayo.

2) Ukuhlukaniswa kanye Nomsebenzi we-RF Front-End
I-RF front-end ingahlukaniswa ngezinhlobo ezimbili ezinkulu ngokusekelwe kufomu layo: izingxenye ezihlukene kanye namamojula e-RF. Izingxenye ezihlukene zihlukaniswa ngokususelwa kumsebenzi wazo, kuyilapho amamojula e-RF ehlukaniswe ngamazinga okuhlanganisa aphansi, aphakathi, kanye naphezulu. Ngaphezu kwalokho, kuye ngendlela yokudlulisa isignali, i-RF front-end ihlukaniswe ngemizila yokudlulisa kanye nokwamukela.

Kusukela ekuhlukaniseni okusebenzayo kwamadivayisi ahlukene, izingxenye ezibalulekile ze-RF front-end zifakiwe ezihlukaniswe i-power amplifier (PA), i-duplexer (Duplexer kanye ne-Diplexer), i-radio frequency switch (Switch), i-filter (Filter) kanye ne-low noise amplifier (LNA), njll.,. Lezi zingxenye, kanye ne-baseband chip, zakha uhlelo oluphelele lwe-RF.

Ama-Power Amplifier (PA): Qinisa isignali edluliselwayo.
Ama-Duplexer: Amasignali okudlulisa kanye nokwamukela ahlukene, okuvumela amadivayisi ukuthi ahlanganyele i-antenna efanayo ngempumelelo.
Iswishi yemvamisa yomsakazo (Shintsha): Vumela ukushintsha phakathi kokudlulisela kanye nokwamukela noma phakathi kwamabhendi emvamisa ahlukene.
Izihlungi: Hlunga amaza angafuneki bese ugcina isignali oyifunayo.
Ama-Amplifiers Omsindo Ophansi (i-LNA): Khulisa izimpawu ezibuthakathaka endleleni yokwamukela.
Amamojula e-RF, ngokusekelwe ezingeni lawo lokuhlanganiswa, asukela kumamojula okuhlanganiswa okuphansi (njenge-ASM, i-FEM) kuya kumamojula okuhlanganiswa okuphakathi (njenge-Div FEM, i-FEMID, i-PAiD), kanye namamojula okuhlanganiswa okuphezulu (njenge-PAMiD, i-LNA Div FEM). Uhlobo ngalunye lwemojula lwenzelwe ukuhlangabezana nezidingo ezahlukene zohlelo lokusebenza.

Ukubaluleka Kwezinhlelo Zokuxhumana
I-RF front-end iyisihluthulelo esibalulekile sokuxhumana okungenantambo okuphumelelayo. Inquma ukusebenza kwesistimu iyonke maqondana namandla esignali, ikhwalithi, kanye nomkhawulokudonsa. Kumanethiwekhi eselula, isibonelo, i-RF front-end iqinisekisa ukuxhumana okucacile phakathi kwedivayisi nesiteshi esiyisisekelo, okuthonya ngqo ikhwalithi yocingo, isivinini sedatha, kanye nobubanzi bokumbozwa.

Izixazululo Ze-RF Engaphambili Ezenziwe Ngokwezifiso
I-Apex igxile ekwakheni izingxenye ze-RF zangaphambili ezenziwe ngokwezifiso, inikeza izixazululo ezenzelwe ukuhlangabezana nezidingo ezithile zezinhlelo ezahlukene zokuxhumana. Uhla lwethu lwemikhiqizo ye-RF yangaphambili luqinisekisa ukusebenza okuhle kwezinhlelo zokusebenza kwezokuxhumana, izindiza, ezokuvikela, nokuningi.

Isiphetho
I-RF front-end iyingxenye ebalulekile yanoma yiluphi uhlelo lokuxhumana, iqinisekisa ukudluliselwa kwesignali okusebenzayo kanye nokwamukelwa kwayo ngenkathi inciphisa ukuphazamiseka. Ngokuthuthuka kobuchwepheshe kanye nezidingo ezikhulayo zokusebenza okuphezulu, ukubaluleka kwezixazululo ze-RF front-end ezisezingeni eliphezulu kuyaqhubeka nokukhula, okwenza zibe yingxenye ebalulekile kumanethiwekhi angenantambo anamuhla.

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