Xov tooj cua zaus (RF) & microwave lim tau txhais tias yog ib hom hluav taws xob lim, uas yog tsim los ua haujlwm ntawm cov teeb liab hauv megahertz mus rau gigahertz zaus ntau yam (nruab nrab zaus mus rau qhov siab heev). Qhov ntau zaus ntawm cov lim dej no yog qhov siv los ntawm cov xov tooj cua tshaj tawm, TV, kev sib txuas lus wireless (xov tooj, Wi-Fi, thiab lwm yam), thiab yog li feem ntau RF thiab microwave cov cuab yeej yuav suav nrog qee yam kev lim dej ntawm cov teeb liab kis lossis tau txais. Cov ntxaij lim dej no feem ntau yog siv los ua lub tsev thaiv rau duplexers thiab diplexers los ua ke lossis sib cais ntau zaus.
Muaj nuj nqi:
1. RF lim tuaj yeem txo qhov kev cuam tshuam ntawm zaus thiab txhim kho kev ua haujlwm ntawm cov khoom siv sib koom ua ke.
2. Ib qho RF lim tso cai tsuas yog qhov zaus thiab cov channel raug xa los yog tau txais kom dhau los thiab txo cov teeb liab cuam tshuam sab nraum lub channel.
Raws li nws txoj haujlwm, raws li qhov ntau zaus ntawm cov teeb liab ua haujlwm los faib cov lim RF, lawv feem ntau muab faib ua plaub pawg, uas yog, low pass filter (LPF), high pass filter (HPF), band pass filter ( BPF) thiab band nres lim (BSF).
1. Low-pass filter: Nws yog hais txog lub lim los ntawm qhov uas tsis tshua muaj teeb liab kis tau tab sis lub teeb liab siab tsis tuaj yeem hla;
2. High-pass lim: Nws yog qhov sib txawv, uas yog, cov teeb liab siab zaus tuaj yeem dhau los thiab cov teeb liab tsawg tsis tuaj yeem hla;
3. Band-pass lim: Nws yog hais txog qhov zaus ntawm qhov ntau zaus ntawm cov teeb liab tuaj yeem dhau, RF lim thiab sab nraum qhov zaus ntawm cov teeb liab tsis tuaj yeem hla;
4. Band-stop filter: Qhov kev ua tau zoo ntawm band-stop lim yog qhov sib txawv, uas yog, cov teeb liab nyob rau hauv ib pawg band raug thaiv, tab sis cov teeb liab sab nraum qhov ntau zaus no tau tso cai hla dhau;
RF lim tuaj yeem muab faib ua SAW lim, BAW lim, LC lim, kab noj hniav lim, lim dej ceramic raws li cov qauv lossis cov khoom siv ntawm lawv thiab.
Jingxin, raws li tus kws tshaj lijChaw tsim tshuaj paus ntawm RF passive Cheebtsam, tuaj yeem muab cov ntxaij lim dej RF saum toj no rau kev siv, uas tau tsim ntau tshaj 10 xyoo los tsim thiab tsim RF cov ntxaij lim dej rau ntau hom kev siv, xws li DAS tov, BAD system, kev sib txuas lus tub rog, thiab tau txais kev qhuas ntau rau kev ua tiav los ntawm cov neeg siv khoom. Cov kev cai tsim cov ntxaij lim dej tuaj yeem ua tiav los ntawm Jingxin raws li lub ntsiab lus ib yam nkaus, cov lus nug ntxiv yog txais tos.
Post lub sij hawm: Sep-13-2021
