Waa maxay RF/Mikrowave Filter?

Soo noqnoqoshada raadiyaha (RF) iyo filtarrada mikrowave waxa lagu qeexaa nooc ka mid ah filtarrada elektarooniga ah, kuwaas oo loogu talagalay inay ku shaqeeyaan calaamadaha megahertz ilaa gigahertz soo noqnoqda (soo noqnoqoshada dhexdhexaadka ah ilaa xad aad u sarreeya). Kala duwanaanshahan soo noqnoqda ee filtarka ayaa ah inta ay adeegsadaan inta badan raadiyaha baahinta, telefishinka, isgaarsiinta wireless-ka (telefoonnada gacanta, Wi-Fi, iwm.), sidaas darteed inta badan aaladaha RF iyo microwave waxay ku dari doonaan nooc ka mid ah shaandhaynta calaamadaha la gudbiyo ama la helo. filtarrada noocan oo kale ah waxaa caadi ahaan loo isticmaalaa sidii blocks-dhismaha duplexers iyo diplexers si ay isugu daraan ama u kala soocaan xaddiyo badan oo soo noqnoqda.

Hawlaha:
1. shaandhada Rf waxay yarayn kartaa faragelinta band-ka soo noqnoqda waxayna wanaajin kartaa waxqabadka qalabka la wada yaal.
2. Shaandheeyaha RF wuxuu u oggolaanayaa kaliya inta jeer iyo kanaalka la gudbinayo ama la helayo inay dhex maraan oo ay yareeyaan faragelinta calaamadaha ka baxsan kanaalka.

Iyada oo ku saleysan hawsheeda, marka loo eego tirada soo noqnoqda ee calaamadda shaqada si loo kala saaro filtarrada RF, waxay inta badan u qaybsan yihiin afar qaybood, taas oo ah, filter-ka hooseeya (LPF), filter filter sare (HPF), filter filter band. BPF) iyo filter joojinta band (BSF).

1. Filter-ka-hooseeya : Waxa loola jeedaa filtarka kaas oo signalka soo noqnoqda hooseeya uu dhaafi karo laakiin signalka soo noqnoqda sare aanu dhaafi karin;
2. shaandhada sare-dhaafka ah: Waa ka soo horjeeda, taas oo ah, calaamadaha soo noqnoqda sare ayaa dhex mari kara iyo calaamadaha hooseeya ee soo noqnoqda ma dhex mari karaan;
3. Filter-pass Band: Waxa loola jeedaa inta jeer ee kala duwan oo soo noqnoqoshada kala duwan ee calaamaduhu gudbi karaan, RF filter iyo ka baxsan tirada soo noqnoqda ee calaamadaha ma gudbi karaan;
4. Filter-stop filter: Waxqabadka filtarka band-stop waa ka soo horjeeda, taas oo ah, calaamadaha xadka band waa la xannibay, laakiin calaamadaha ka baxsan xadkan soo noqnoqda ayaa loo oggol yahay inay dhex maraan;

Shaandhooyinka RF waxaa loo kala saari karaa shaandhada SAW, filtarka BAW, shaandhada LC, filtarka daloolka, filtarka dhoobada iyadoo loo eegayo qaab dhismeedka ama walxaha iyaga sidoo kale.

Jingxin, xirfad ahaansoo saaraha ee qaybaha dadban ee RF, waxay bixin kartaa filtarrada RF ee kor ku xusan si loogu tixraaco, kaas oo soo saarayay in ka badan 10 sano si loo naqshadeeyo loona soo saaro filtarrada RF ee codsiyada kala duwan, sida xalalka DAS, nidaamka BAD, isgaarsiinta milatariga, iyo helitaanka ammaan aad u sarreeya guusha laga gaaray macaamiisha. Shaandhooyinka naqshadaynta gaarka ah waxaa samayn kara Jingxin si waafaqsan qeexida sidoo kale, su'aalo badan ayaa la soo dhaweynayaa.