Shield and ceramic filter

Details Shield and ceramic filter Shield and ceramic filter

1997-02-27

1998-08-04

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333207, H01P 120

Patent

active

057900019

ABSTRACT:
An improved shield and ceramic filter. The shield includes (i) an upright portion (16) comprising a conductive material, (ii) a chamfered portion (22) disposed atop the upright portion (16), (iii) a horizontal portion (18) disposed on a distal portion of the chamfered portion (22) and (iv) one or more openings (20) disposed on the chamfered portion (22). The improved shield (12) desirably but not essentially further includes at least one slot (26) cut into a basal section of the upright portion (16). The at least one slot (26) allows a microstrip transmission line to pass under a portion of the shield (12).

REFERENCES:
patent: 4439747 (1984-03-01), Kreinheder et al.
patent: 4821006 (1989-04-01), Ishikawa et al.
patent: 4890199 (1989-12-01), Beutler
patent: 5023580 (1991-06-01), Kim et al.
patent: 5267882 (1993-12-01), Davis
patent: 5278527 (1994-01-01), Kenoun et al.
patent: 5374906 (1994-12-01), Noguchi et al.
patent: 5557144 (1996-09-01), Rosenstock et al.

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