Ring millimeter-wave filter having an embedded microstrip...

Details Ring millimeter-wave filter having an embedded microstrip... Ring millimeter-wave filter having an embedded microstrip...

2007-12-18

2007-12-18

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S205000, C333S219000

Reexamination Certificate

active

11218644

ABSTRACT:
A ring millimeter-wave filter is a three-dimensional dual-mode ring filter. The ring millimeter-wave filter makes use of a three-dimensional coupling architecture as the feed of a filter to conquer the limit of the smallest spacing of a planar circuit made by the low-temperature cofired ceramic (LTCC) process so as to achieve the required coupling. Moreover, through the design of an embedded microstrip line, more than 20% of the filter area can be saved to facilitate integration with other components.

REFERENCES:
patent: 5172084 (1992-12-01), Fiedziuszko et al.
patent: 6121861 (2000-09-01), Yabuki et al.
patent: 6958667 (2005-10-01), Mizoguchi et al.

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