High-frequency printed circuit boards (HF PCBs): cov yam ntxwv, cov ntaub ntawv, thiab cov txheej txheem tsim

High-frequency printed circuit boards (HF PCBs): cov yam ntxwv, cov ntaub ntawv, thiab cov txheej txheem tsim

High zaus luam tawm Circuit Board boards (HF PCBs) yog tsim los ntawm cov ntaub ntawv tshwj xeeb thiab tuaj yeem xa cov teeb liab siab txog li 500MHz. Lawv tau siv dav hauv kev lag luam xws li kev sib txuas lus, xov tooj cua zaus microwaves, tub rog, thiab aerospace. Thaum tsim high-frequency PCBs, ntau qhov yuav tsum tau txiav txim siab kom ua tau raws li lub teeb liab yuav tsum tau ntawm cov kev siv tshwj xeeb, xws li dielectric tas li (Dk), qhov tsis zoo (Df), coefficient ntawm thermal expansion (CTE), dielectric qhov kub coefficient (TCDk). ), thiab thermal conductivity.

Ib, Cov yam ntxwv ntawm high-frequency PCBs suav nrog:

1.Low dielectric tas li (Dk):txo cov teeb liab ncua sij hawm thiab txhim kho kev sib kis ntau zaus.
2.Low Loss Factor (Df):Minimizes teeb liab poob thiab txhim kho cov teeb liab kis tau tus mob.
3. Dimensional stability:Nws tsis hloov nrog qhov kub thiab txias, tswj kev ruaj ntseg ntawm qhov loj thiab cov duab.
4. Tsawg noo noo nqus:muaj peev xwm tiv taus huab cua puag ncig.
5.Chemical tsis kam:tsis yooj yim corroded.
2, Cov ntaub ntawv siv los tsim cov PCBs muaj xws li:

1.Rogers RO4350B, RO3001, RO3003
2.ISOLA IS620 alkali dawb iav fiber ntau
3.Taconic RF-35 ceramics
4. Taconic TLX
5.85n ib
3, High zaus PCB tsim cov txheej txheem:

1.Xaiv cov ntaub ntawv nrog dielectric tas li thiab qhov poob qhov uas tsim nyog rau daim ntawv thov.
2.Siv nyias cov ntawv ci tooj liab los tiv thaiv cov teeb liab poob.
3.Ua raws impedance txuam.
4. Khaws cov kab ntev kom luv li sai tau kom txo tau qhov sib txuas.
5.Tsis txhob siv cable dabtsi yog khoov thiab txo impedance hloov.
6.Txhim qhov sib nrug ntawm cov kab uas nyob ib sab kom txo cov lus sib tham.
7.Siv 3W txoj cai kom ntau li ntau tau los txo cov lus sib tham.
8.Group signals thiab cov khoom siv hom.
4, Piv txwv ntawm high-frequency PCB daim ntawv thov:

1. Cov khoom siv hluav taws xob kho mob, xws li cov khoom siv saib xyuas thiab kuaj mob.
2.Wireless kev sib txuas lus, xws li xov tooj ntawm tes, GPS li, thiab RF chaw taws teeb tswj.
3.Kev sib txuas lus cov khoom siv, suav nrog cov txais, lim, amplifiers, couplers, radars, thiab kav hlau txais xov.
4.Automotive electronic systems.
5.RF microwave khoom siv.
6.Kev siv tub rog thiab aerospace.