发明名称 |
Coplanar filter |
摘要 |
<p>A filter is provided which comprises a single dielectric, and a line conductor and a ground conductor disposed on the dielectric. The line conductor includes first and second line conductor sections having opposed portions defining an open gap therebetween to form a capacitive coupling section. The edge lines of the opposed portions of the first and second conductor sections defining the open gap therebetween are substantially elongated relative to the line width of the corresponding conductor sections. The thus constructed filter is capable of suppressing a variation in the normalized J-inverter value even if dimensional errors relative to the design specifications due to overetching or underetching involved during the manufacture. <IMAGE></p> |
申请公布号 |
EP1562255(A1) |
申请公布日期 |
2005.08.10 |
申请号 |
EP20050002146 |
申请日期 |
2005.02.02 |
申请人 |
NTT DOCOMO, INC. |
发明人 |
KOIZUMI, DAISUKE;SATOH, KEI;NARAHASHI,SHOICHI |
分类号 |
H01L23/12;H01P1/201;H01P1/203;H01P5/02;(IPC1-7):H01P1/201 |
主分类号 |
H01L23/12 |
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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