Nyob rau hauv ib txwm PCB tsim cov xwm txheej, cov hauv qab no feem ntau cuam tshuam rau qhov cuam tshuam los ntawm PCB kev tsim khoom:

1. Lub thickness ntawm txheej dielectric yog sib npaug rau tus nqi impedance.

2. Dielectric qhov tsis sib thooj yog sib npaug rau tus nqi impedance.

3. Lub tuab ntawm cov ntawv ci tooj liab yog qhov sib npaug sib npaug rau tus nqi impedance.

4. Kab dav yog sib npaug sib npaug rau tus nqi impedance.

5. Ink thickness thiab impedance tus nqi inversely proportional.

Yog li peb yuav tsum tau them sai sai rau cov ntsiab lus saum toj no thaum tswj kev tiv thaiv.