Luv luv piav qhia txog kev ua haujlwm tsis zoo ntawm RF isolators

Hauv RF systems, lub luag haujlwm tseem ceeb ntawmRF cais tawmyog los muab lossis txhim kho kev muaj peev xwm cais tawm rau cov teeb liab sib txawv. Nws yog ib qho kev txhim kho circulator uas raug txiav los ntawm kev sib piv impedance ntawm ib qho ntawm nws cov chaw nres nkoj. Nws feem ntau yog siv nyob rau hauv radar systems los tiv thaiv rhiab circuits ntawm qhov kawg tau txais kom tsis txhob muaj kev cuam tshuam los ntawm high-power transmission signals, yog li ua kom muaj txiaj ntsig zoo ntawm kev sib kis thiab tau txais cov teeb liab. Kab lus no yuav coj koj los nkag siab txog qhov tseem ceeb ntawm kev ua haujlwm tsis zoo ntawmRF cais tawm.

Ib. Txhais
RF cais tawmyog qhov tseem ceeb ntawm daim ntawv tshwj xeebRF circulators muaj, nyob rau hauv uas ib qho chaw nres nkoj (feem ntau yog txoj kev rov qab kawg ntawm lub teeb liab saw) raug txiav los ntawm kev sib txuam load kom ua tiav unidirectional kis ntawm cov teeb liab. Nws tsuas yog tso cai rau cov teeb liab hla mus rau hauv qhov kev taw qhia uas tau txiav txim siab thaum ua rau muaj kev cuam tshuam, suab nrov lossis cuam tshuam cov teeb liab los ntawm kev rov qab los, yog li ua kom muaj kev sib cais zoo ntawm qhov txuas yav dhau los.

RF cais tawm or cov circulatorsfeem ntau yog passive ferrite li uas coj electromagnetic nthwv dej ntawm cov tswv yim kawg nyob rau hauv ib qho kev taw qhia los ntawm ib tug tshwj xeeb magnetic teb configuration thiab tso zis ntawm qhov chaw nres nkoj nyob ib sab.

Muab piv nrog cov cais tawm hloov los ntawm cov paRF circulators muaj, cov cuab yeej tsim tshwj xeeb rau kev cais tawm feem ntau yog ntau dua thiab yooj yim rau kev sib koom ua ke. Nws qhov kev sib cais kev ua tau zoo yog cuam tshuam ncaj qha los ntawm qhov zoo ntawm cov khoom siv davhlau ya nyob twg.

High zaus tus qauv cais, Kev rho tawm (12-14dB), 18 txog 40GHz

二. Kev ua haujlwm tsis zoo
Qhov tseem ceeb Performance index ntawmRF cais tawmsuav nrog:

Ntau zaus (Hz)

Impedance (Ω)

Insertion poob (dB)

Kev rho tawm (dB)

Voltage sawv wave ratio (VSWR)

Forward zog tuav peev xwm (nruam nthwv dej los yog ncov)

Rov qab muaj peev xwm tuav tau (nruam nthwv dej lossis ncov)

Hom Connector

Ntawm lawv, kev sib cais yog ib qho tseem ceeb tshaj plaws, uas qhia txog qib ntawm kev sib txuas ntawm RF txoj hauv decibels (dB). Tus nqi siab dua, qhov me dua qhov sib txuas ntawm cov teeb liab thiab qhov zoo dua qhov kev sib cais. Txij li thaum electromagnetic coupling yog dav nyob rau hauv tag nrho cov conductive txoj kev, nws yog ib qho tseem ceeb tshwj xeeb uas yuav tsum tau muaj kev sib cais siab ntawm txoj kev nyob rau hauv high-precision kev sib txuas lus los yog sensing systems.

Ntxiv rau, raws li kev thov sib txawv,cais tawmNws tseem yuav tsum muaj lub peev xwm tuav lub zog tsim nyog, tsis tshua muaj VSWR, kev ntseeg siab ntawm cov qauv sib txuas, qhov loj me, thiab kev ua haujlwm kub hloov pauv tau, uas yuav cuam tshuam rau lawv cov kev ua tau zoo hauv cov xwm txheej tiag tiag. Qhov siab tshaj plaws lub zog ntsuas ntawm qhov kev sib cais kuj tseem tuaj yeem raug txwv los ntawm cov yam ntxwv ntawm qhov kev txiav tawm.