发明名称 |
Dual-mode cavity for waveguide bandpass filter |
摘要 |
Dual-mode cavity of waveguide bandpass filters, which allow the realization of narrow-band filters with very limited transition band and extremely low losses, without tuning or coupling screws or smooth edges. The dual mode cavity is composed of three coaxial sections of waveguide arranged in cascade and provided with irises, of which the two end sections are suited to support two modes with orthogonal polarizations and the intermediate section, consisting of a rectangular waveguide, has its side tilted with respect to the plane on which the irises lie. The whole filter composed of these cavities can be entirely designed by means of a computer and requires no tuning operation.
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申请公布号 |
US5703547(A) |
申请公布日期 |
1997.12.30 |
申请号 |
US19970798645 |
申请日期 |
1997.02.11 |
申请人 |
CSELT- CENTRO STUDI E LABORATORI TELECOMUNICAZIONI S.P.A. |
发明人 |
BERTIN, GIORGIO;ACCATINO, LUCIANO |
分类号 |
H01P1/208;H01P7/06;(IPC1-7):H01P1/20 |
主分类号 |
H01P1/208 |
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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