发明名称 |
Multi-layer band-pass filter |
摘要 |
A multi-layer band-pass filter comprises an unbalanced input, two balanced outputs, and a band-pass filter section provided between the unbalanced input and the two balanced outputs. The band-pass filter section incorporates a plurality of resonators each of which is made up of a TEM line. The band-pass filter further comprises a multi-layer substrate used for integrating the resonators. The band-pass filter section incorporates, as the resonators, an input resonator, and a half-wave resonator for balanced output that is made up of a half-wave resonator having open-circuited ends. The unbalanced input is connected to the input resonator through a capacitor. Each of the balanced outputs is connected to the half-wave resonator through a capacitor. <IMAGE> |
申请公布号 |
EP1513217(A1) |
申请公布日期 |
2005.03.09 |
申请号 |
EP20040020776 |
申请日期 |
2004.09.01 |
申请人 |
TDK CORPORATION |
发明人 |
FUKUNAGA, TATSUYA;MATSUBARA, HIDEYA;TODA, SHINICHIROH |
分类号 |
H01P1/20;H01P1/203;H01P5/10 |
主分类号 |
H01P1/20 |
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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