2 Txheej OSP F4B High zaus PCB
Hais txog F4B High Frequency PCB
Wangling F4B yog raws li qhov yuav tsum tau ua ntawm hluav taws xob ua haujlwm ntawm microwave circuits,
Nws yog ib yam zoo heev microwave luam ntawv Circuit Court board nrog zoo hluav taws xob zog thiab siab mechanical zog.
Tsim Ntawm F4B High Frequency PCB
Nyob rau hauv kev tsim ntawm high-frequency PCB, designers feem ntau them ntau xim rau lub dielectric tas li (DK) thiab tangent poob (DF) ntawm PCB thaum xaiv cov ntaub ntawv, thiab tsuas yog them sai sai mus rau lub thickness ntawm tooj liab ntawv nyiaj thaum xaiv tooj liab ntawv ci, uas yog. yooj yim rau las mees qhov cuam tshuam ntawm ntau hom tooj liab ntawv roughness ntawm cov khoom hluav taws xob ntawm cov khoom.
SEM tsom xam ntawm micro morphology ntawm ntau hom tooj liab ntawv ci thiab dielectric hu rau saum npoo qhia tau hais tias qhov roughness ntawm ntau hom ntawm tooj liab ntawv ci txawv heev.Nyob rau hauv kev tsim ntawm microstrip kab, qhov roughness ntawm tooj liab ntawv nyiaj thiab dielectric kev sib cuag nto yuav ncaj qha cuam tshuam rau qhov poob ntawm tag nrho cov kab sib kis.
Khoom Parameters ntawm F4B PCB
Wangling F4B yog ua los ntawm cov ntaub ntawv zoo raws li kev ua haujlwm hluav taws xob ntawm microwave circuits.Nws muaj hluav taws xob ua tau zoo thiab muaj zog txhua yam.Nws yog ib qho zoo heev microwave printed Circuit Court subgrade board.Ib txwm 15N / cm siab tsis tu ncua dej kub thiab 260 ℃ ± 2 ℃ fusion vuam khoom kom 20 vib nas this tsis foaming, tsis muaj stratification thiab tev lub zog ≥12 N / cm.
| Hom khoom | Qauv | Filling Khoom | Dk (@10GHZ) | Df (@10GHZ) |
| F4B-1/2 | PTFE + iav ntaub | 2.55/2.65 Nws | ≤ 0.001 | |
| F4BK | F4BK225 | PTFE + iav ntaub | 2.55 Nws | ≤ 0.001 |
| F4BK265 | PTFE + iav ntaub | 2.65 ib | ≤ 0.001 | |
| F4BK300 | PTFE + iav ntaub | 3 | ≤ 0.001 | |
| F4BK350 | PTFE + iav ntaub | 3.5 | ≤ 0.001 | |
| F4BM | F4BM220 | PTFE + iav ntaub | 2.2 | ≤ 0.007 |
| F4BM225 | PTFE + iav ntaub | 2.55 Nws | ≤ 0.007 | |
| F4BM265 | PTFE + iav ntaub | 2.65 ib | ≤ 0.007 | |
| F4BM300 | PTFE + iav ntaub | 3 | ≤ 0.007 | |
| F4BM350 | PTFE + iav ntaub | 3.5 | ≤ 0.007 |
