发明名称 |
High-frequency filter |
摘要 |
A high-frequency filter for use in a superhigh frequency band such as of microwaves and millimeter waves has a substrate, a metal conductor disposed on a first main surface of the substrate, a resonator comprising a transmission line of a coplanar structure which is made of the metal conductor, and input and output lines disposed on a second main surface of the substrate transversely across the resonator and electromagnetically coupled to the resonator. The resonator may be a coplanar line resonator (coplanar waveguide resonator) or a slot line resonator. The high-frequency filter has a steep attenuating gradient in filter characteristics. The high-frequency filter may be combined with variable-reactance devices such as variable-capacitance diodes for electronically controlling the filter characteristics.
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申请公布号 |
US2003102942(A1) |
申请公布日期 |
2003.06.05 |
申请号 |
US20020262909 |
申请日期 |
2002.10.02 |
申请人 |
AIKAWA MASAYOSHI;NISHIYAMA EISUKE;KAWAMURA YOSHIFUMI;ASAMURA FUMIO;OITA TAKEO |
发明人 |
AIKAWA MASAYOSHI;NISHIYAMA EISUKE;KAWAMURA YOSHIFUMI;ASAMURA FUMIO;OITA TAKEO |
分类号 |
H01P1/203;H01P1/201;H01P5/10;H01P7/08;(IPC1-7):H01P1/203 |
主分类号 |
H01P1/203 |
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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