Cov txheej txheem tseem ceeb rau microtrip teeb
1. Tsim kev tshwj xeeb rau microstrip kab foundation
Muaj feem cuam tshuam cov xwm txheej:
Kev Loj HlobHauv qab no 10GHz (xws li 5g sub -6 ghz zaus band)
Cov xwm txheej uas raug nqi rhiab thiab muaj qhov tsawg dua rau kev cuam tshuam hluav taws xob
Cov Qauv Txheej Txheem:
Ib Txheej Teeb Liab Kab + Hauv Qab Av Av Av
Lub thickness (h) thiab kab (w) ntawm daim dielectric txheej txiav txim siab tus xeeb ceem ntawm tus xeeb ceem
(ER): Tus dielectric constant ntawm lub rooj tsavxwm, (t): tooj liab tuab
Qhov teeb meem tsim:
Cov 5G chav tsev kav hlau kav hlau txais xov (3.5GHz) siv Rogers Ro435 {board (er}. 48) Nrog dielectric thickness ntawm 0. 5 hli. Suav txoj kab dav dav ntawm 0.8mm tuaj yeem ua tiav 50 ω impedance.
2. Kev ua kom zoo ntawm cov teeb liab high-zaus
Txo kev poob:
Xaiv Ultra-tsawg roughness tooj liab ntawv ci (ra<0.3um) to reduce skin effect losses
Kev kho deg yuav tsum ua qhov ua kom ua qhov kev txiav txim siab immersion kub (Enrac) dhau tin txau (HASL)
Hluav Taws Xob Txiaj Ntsig:
Nruab phab av hauv av ntawm cov npe ntawm ob sab ntawm cov kab kos npe (txuas tsawg dua lossis sib npaug rau λ / 10)
Lub kaum tsev txais yuav 45 degree oblique txiav los yog puag ncig arc hloov (vojvoog ntau dua lossis sib npaug ntawm 3 zaug ntawm kab dav)
Kev Loj Hlob Microwave RF Circuit Courner Board