Filter

Details Filter Filter

1997-05-05

1999-02-23

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333234, 333235, 333219, H01P 120, H01P 700

Patent

active

058748725

ABSTRACT:
A filter has a shell construction including a connection surface and a bar-like resonator in the shell construction. The bar-like resonator has an initial section having one end region thereof connected to the connection surface of the shell construction and an opposite end region. A substantially straight and elogate intermediate section extends from the opposite end region of the initial section to an end and a turning-point section extends from the end of the intermediate section to an end. A substantially straight and elongate end section has one end connected to the end of the turning-point section so as to extend adjacent to the intermediate section and supporting means connect to the connection surface of the shell construction for supporting the bar-like reasonator at least at one of the end section and turning-point.

REFERENCES:
patent: 3706948 (1972-12-01), Choi et al.
patent: 4059815 (1977-11-01), Makimoto et al.
patent: 4129842 (1978-12-01), Torii et al.
patent: 5418508 (1995-05-01), Puurunen
patent: 5691675 (1997-11-01), Hatanaka

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