发明名称 |
Transition between symmetric stripline and asymmetric stripline |
摘要 |
The present invention relates to an arrangement in multilayer printed circuit boards, with the aim of improving matching in transitions between symmetric striplines (3) and asymmetric striplines (4). The requirement of a coverpad (6) for contact between the via (5) and the asymmetric stripline (4) for dimension reasons among other things, results in matching problems. In order to avoid this problem, the earth plane (7, 10) nearest the transition is moved away in the proximity of the via (5).
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申请公布号 |
US6348844(B1) |
申请公布日期 |
2002.02.19 |
申请号 |
US20000594771 |
申请日期 |
2000.06.16 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
ALBINSSON BJOERN;HARJU THOMAS |
分类号 |
H05K3/46;H01P1/04;H01P5/08;H05K1/00;H05K1/02;(IPC1-7):H01P5/08 |
主分类号 |
H05K3/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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