Gawo la RF front-end: mphamvu yaikulu yoyendetsera nthawi ya 5G

Gawo la RF front-end module (FEM) limagwira ntchito yofunika kwambiri pa kulumikizana kwa mafoni amakono, makamaka munthawi ya 5G. Limapangidwa makamaka ndi zigawo zazikulu monga power amplifier (PA),fyuluta,duplexer, RF switch ndichokweza phokoso lotsika (LNA)kuonetsetsa kuti chizindikirocho chili ndi mphamvu, kukhazikika, komanso mtundu wake.

Chojambulira champhamvu chimayang'anira kukulitsa chizindikiro cha RF, makamaka mu 5G, chomwe chimafuna kugwira ntchito bwino kwambiri komanso kulumikizana bwino. Chojambulirachi chimasankha chizindikiro cha ma frequency kuti chisefe zizindikiro zosokoneza kuti zitsimikizire kuti kutumiza kwa chizindikiro kuli koyera. Mu gulu la ma frequency apamwamba, ma filter a surface acoustic wave (SAW) ndi ma bulk acoustic wave (BAW) ali ndi zabwino ndi zovuta zawo. Ma filter a BAW amagwira ntchito bwino mu gulu la ma frequency apamwamba, koma mtengo wake ndi wokwera.

TheduplexerImathandizira njira yolumikizirana ya frequency division duplex (FDD) kuti iwonetsetse kuti kulumikizana kwa njira ziwiri kukuyenda bwino, pomwe RF switch ndiyo imayang'anira kusintha njira ya chizindikiro, makamaka m'malo okhala ndi ma band ambiri a 5G, omwe amafunika kutayika kochepa komanso kusintha mwachangu.chokweza phokoso lotsikaamaonetsetsa kuti chizindikiro chofooka chomwe chalandiridwa sichisokonezedwa ndi phokoso.

Ndi chitukuko cha ukadaulo wa 5G, ma module a RF front-end akupita patsogolo pakuphatikizana ndi kuchepetsedwa. Ukadaulo wa SiP packaging umaphatikiza zigawo zingapo za RF pamodzi, zomwe zimapangitsa kuti kuphatikizana kukhale bwino komanso kuchepetsa ndalama. Nthawi yomweyo, kugwiritsa ntchito zipangizo zatsopano monga liquid crystal polymer (LCP) ndi modified polyimide (MPI) m'munda wa antenna kumawonjezeranso mphamvu yotumizira ma signal.

Kupangidwa kwa ma module a RF front-end kwalimbikitsa kupita patsogolo kwa mauthenga a 5G, ndipo kudzapitirizabe kukhala ndi gawo lalikulu pa mauthenga opanda zingwe mtsogolo, zomwe zimabweretsa mwayi wochulukirapo pakukula kwaukadaulo.