Xov tooj cua zaus (RF) PCBs nyiam Rogers boards, nrog rau qhov tseem ceeb yog tias lawv ua tiav zoo tib yam FR-4 boards nyob rau hauv high-frequency hluav taws xob kev ua tau zoo, thermal stability, thiab huab hwm coj ntau lawm compatibility, zoo kawg nkaus txuam cov nruj nruj ntawm RF circuits rau tsawg poob thiab high-precision impedance tswj.
Qhov kawg high-frequency hluav taws xob kev ua tau zoo
Ultra tsis tshua muaj txiaj ntsig (Df): Df ntawm Rogers pawg thawj coj tuaj yeem ncav cuag qis li 0.0009 (xws li RO5880), qis dua li 0.02 ntawm qhov qub FR-4. Nyob rau hauv 77GHz millimeter nthwv dej scene, lub teeb liab attenuation tuaj yeem tswj tsis pub dhau 1.3dB / nti, txhim kho ntau yam radar nrhiav kom tau thiab raug.
Ruaj khov thiab tswj tau dielectric tas li (Dk): Dk npog tag nrho ntawm 2.2 ~ 12.85, thiab hloov pauv hauv qhov ntau ntawm -55℃~ 125℃los ntawm Tsawg dua lossis sib npaug rau ± 0.02. Lub impedance tswj qhov tseeb tuaj yeem ncav cuag ± 3%, ua tau raws li qhov xav tau nruj ntawm 50 Ω yam ntxwv impedance hauv RF circuits.
Kev nqus dej tsawg heev: Cov dej nqus dej<0.02%, Dk and Df will not drift in humid environments, avoiding performance degradation of RF signals in high humidity scenarios.
Zoo heev thermal thiab mechanical kev ntseeg tau
High thermal conductivity: RO4350B muaj thermal conductivity ntawm 0.69 W / m · K, uas yog ob npaug ntawm qhov zoo tib yam FR-4. Nws tuaj yeem cuam tshuam cov cua sov uas tsim los ntawm RF fais fab amplifiers thiab tsis txhob overheating thiab tsis ua hauj lwm.
Sib piv cov coefficient ntawm thermal expansion (CTE) ntawm tooj liab ntawv nyiaj: Z-axis CTE tswj nyob rau hauv 65 ppm / degree, zoo heev txuam cov thermal expansion yam ntxwv ntawm tooj liab ntawv ci, txo qhov kev pheej hmoo ntawm ntau txheej board vuam warping thiab metalized qhov tawg, thiab yoog raws li qhov yuav tsum tau ntawm automotive low-grade testing.
Muaj zog tiv thaiv kev vibration mechanical kev ua tau zoo: dabtsi yog khoov lub zog Ntau dua lossis sib npaug ntawm 450 MPa, tuaj yeem tiv taus kev vibrations hnyav hauv tsheb thiab aerospace scenarios, thiab kev ua haujlwm ntev mus ntev dua li cov phaj siab zoo tib yam.
Txheej txheem compatibility rau kev siv ntau lawm
Tau tshaj FR-4 cov pa ua haujlwm ntws: RO4000 series tsis tas yuav tsum tau tshwj xeeb PTFE drilling thiab nias cov cuab yeej, thiab tuaj yeem ncaj qha rau pawg tsim khoom ntawm cov kab ntau lawm PCB. Kev ua tiav cov txiaj ntsig ntau dua li cov ntawv ntshiab PTFE, thiab tus nqi tag nrho yog 30% mus rau 50% qis dua li cov kev daws teeb meem PTFE.
Txhawb kev sib xyaw tsim qauv tsim: Nws tuaj yeem ua tiav qhov sib xyaw ua ke siab nrog FR-4 board. RF teeb liab txheej siv Rogers substrate kom ntseeg tau tias qhov poob qis, thiab cov txheej txheem digital / fais fab siv FR-4 los tswj cov nqi. Tag nrho cov kev daws teeb meem txo tus nqi ntau dua 40% piv rau tag nrho Rogers pawg thawj coj saib, ua rau nws lub ntsiab lus tseem ceeb rau kev tsim khoom loj ntawm 5G hauv paus chaw nres tsheb thiab tsheb radar.
Standardization ntawm tsis nyob rau hauv tag nrho cov series: Dk uniformity sib txawv ntawm txawv batches ntawm boards yog tsawg tshaj li los yog sib npaug zos rau ± 0.02, tshem tawm qhov yuav tsum tau rau rov qab Circuit Court tsim kho. Qhov sib xws ntawm pawg ntau lawm yog qhov zoo dua li ntawm cov niche high-frequency boards, thiab cov khoom siv xa khoom xa tuaj yog ruaj khov thiab tswj tau.
Cov khoom matrix npog tag nrho cov xwm txheej
Los ntawm cov dav dav RF RO4000 series, millimeter yoj radar RO3000 series, satellite kev sib txuas lus RT / duroid series, mus rau lub miniaturized siab Dk TMM series, Rogers muaj ib tug ua tiav cov khoom kab uas muaj peev xwm ua kom haum rau tag nrho cov RF daim ntawv thov scenarios los ntawm cov neeg siv khoom qib WiFi 6 mus rau qib tub rog theem array radar. Nws tau lees paub tias yog qhov kev xaiv zoo tshaj plaws ntawm pawg thawj coj saib hauv kev lag luam.