Nyob rau hauv lub ntiaj teb niaj hnub no, Circuit Court boards yog ib feem tseem ceeb. Nrog rau kev txhim kho thev naus laus zis thiab kev xav tau ntau ntxiv, cov khoom siv hluav taws xob tau ua raws li kev ua tau zoo dua thiab qhov me me, uas yuav tsum muaj ntau txoj hauv kev tsim hluav taws xob thiab cov khoom siv hluav taws xob ntau dua. Kab lus no yuav coj koj mus rau kev nkag siab tob txog12 txheejCircuit Boardstacking thiab stack impedance xam.
Ua ntej, peb yuav tsum tau qhia meej tias 12 txheej txheej Circuit Board pawg yog dab tsi. Raws li lub npe qhia, 12 txheej Circuit Court board yog lub rooj tsav xwm hauv Circuit Court uas muaj 12 txheej ntawm tooj liab ntawv ci thiab dielectric txheej. Copper foil yog siv rau cov teeb liab kis tau tus mob, thaum lub dielectric txheej yog siv los cais cov teeb liab cuam tshuam ntawm cov txheej txheem sib txawv. Hauv 12 txheej Circuit Court board, muaj qee cov txheej txheem sab hauv siv los ua lub zog thiab hauv av txheej los muab lub zog ruaj khov thiab txo cov suab nrov.
Kev suav ntawm stacked impedance yog los xyuas kom meej qhov zoo ntawm cov teeb liab kis tau tus mob ntawm lub Circuit Court board, txo cov teeb liab attenuation thiab distortion. Nyob rau hauv 12 txheej Circuit Court board, electromagnetic teb coupling thiab kev sib nrig sib capacitance cuam tshuam ntawm cov txheej txheem sib txawv tuaj yeem cuam tshuam nrog cov teeb liab kis tau tus mob, yog li nws yog ib qho tsim nyog los tswj thiab optimize cov teeb liab kis tau tus mob los ntawm pawg impedance xam.
Yog li, yuav ua li cas xam cov pawg impedance ntawm a12 txheej Circuit Court board? Ua ntej, peb yuav tsum nkag siab txog txoj cai propagation ntawm electromagnetic tsis nyob rau hauv Circuit Court boards. Thaum electromagnetic nthwv dej propagate nyob rau hauv lub rooj tsavxwm Circuit Court, ob hom yog generated: txawv hom thiab hom hom. Hom sib txawv yog hais txog kev nthuav tawm ntawm cov teeb liab ntawm cov txheej txheem sib txawv uas nyob ib sab, thaum hom hom yog hais txog kev nthuav tawm ntawm cov teeb liab ntawm cov txheej uas nyob ib sab.
Hauv ib12 txheej Circuit Court board, peb tuaj yeem kho tus yam ntxwv impedance ntawm cov qauv sib txawv los ntawm kev tswj qhov sib txawv ntawm cov txheej txheem sib txawv thiab cov dielectric tas li ntawm dielectric txheej. Feem ntau, cov yam ntxwv impedance ntawm txawv hom tuaj yeem simulated thiab tsim siv stacked impedance suav software.
Rau hom hom hom, peb yuav tsum tau kho nws cov yam ntxwv impedance los ntawm kev tswj qhov sib nrug ntawm cov khaubncaws sab nraud povtseg zoo tib yam thiab dielectric tas li ntawm dielectric txheej. Los ntawm tsim nyog tsim thiab simulation, tus yam ntxwv impedance ntawm hom hom tuaj yeem ua tau raws li qhov xav tau.
Cov yam tseem ceeb uas yuav tsum tau xav txog nyob rau hauv kev suav ntawm stacked impedance muaj xws li xaiv cov ntaub ntawv, kab dav, kab sib nrug, thiab interlayer spacing. Cov ntawv sib txawv muaj qhov sib txawv dielectric tsis tu ncua thiab poob yam, uas tuaj yeem cuam tshuam rau pawg impedance. Thiab tsis xws li kab dav, kab sib nrug, thiab interlayer spacing yuav txiav txim siab qhov loj thiab ruaj khov ntawm stacked impedance.
Txhawm rau kom ua tiav, kev suav ntawm pawg impedance ntawm 12 txheej Circuit Court board yog los xyuas kom meej qhov zoo thiab ruaj khov ntawm electromagnetic teeb liab kis tau tus mob. Los ntawm kev kho qhov sib txawv ntawm cov khaubncaws sab nraud povtseg thiab dielectric tas li ntawm dielectric txheej, tus yam ntxwv impedance tswj ntawm txawv hom thiab hom hom yuav ua tau tiav. Kev xaiv tsim nyog ntawm cov ntaub ntawv thiab kev tswj xyuas qhov tsis xws li kab dav, kab sib nrug, thiab qhov sib txawv ntawm qhov sib txawv yog qhov tseem ceeb rau kev suav cov pawg impedance.
Nrog kev txhim kho txuas ntxiv ntawm kev siv tshuab hluav taws xob, qhov tseem ceeb ntawm kev suav cov impedance hauv kev tsim khoom siv hluav taws xob tau dhau los ua qhov tseem ceeb. Tsuas yog los ntawm kev suav tseeb ntawm stacked impedance tuaj yeem ua haujlwm li qub thiab kev ua haujlwm siab ntawm lub rooj tsavxwm Circuit Court yuav lav.