High performance RF/microwave filters for surface mount technolo

Details High performance RF/microwave filters for surface mount technolo High performance RF/microwave filters for surface mount technolo

1998-01-26

1999-12-07

Bettendorf, Justin P.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

361813, 361818, H03H 701

Patent

active

059990678

ABSTRACT:
The present invention provides filters configured for use in surface mount technology (SMT). The high performance SMT filters of the present invention are formed of an exterior housing surrounding a smaller, similarly configured metal bracket. Electrically connected to the interior of the metal bracket are the filter internal components. Inside the metal bracket, and surrounding the filter internal components, is a solidified void-filling material such as epoxy. The ground leads of the filter are an integral part of the metal bracket giving excellent ground connection from the filter internal components to the surface mount circuit board. The high performance SMT filters of the present invention are especially adaptable to highly automated, high-throughput manufacturing techniques.

REFERENCES:
patent: 3251015 (1966-05-01), Denham
patent: 4213106 (1980-07-01), Tunematu et al.
patent: 5274346 (1993-12-01), Izu et al.
patent: 5621363 (1997-04-01), Ogden et al.

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