Wave transmission lines and networks – Coupling networks – With impedance matching
Reexamination Certificate
2007-04-10
2007-04-10
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
With impedance matching
C333S246000
Reexamination Certificate
active
11036119
ABSTRACT:
A signal transmission structure including a signal line, a first reference plane with a first opening, and a second reference plane with a second opening is provided. The first reference plane is disposed beside the signal line, and a portion of the signal line passes through a position of the first opening. In addition, the second reference plane is disposed beside the first reference plane, and the second opening is in a position corresponding to the position of the first opening, while the outline of the second opening projected onto the first reference plane does not overlap with the position of the first opening. Therefore, at high frequency-transmission, the above structure can reduce the insertion loss resulted from impedance mismatch as the signal passes through the opening, and reduce the resonance induced by the coupling between two reference planes to enhance the quality of signal transmission.
REFERENCES:
patent: 5003273 (1991-03-01), Oppenberg
patent: 5479138 (1995-12-01), Kuroda et al.
patent: 6624729 (2003-09-01), Wright et al.
J.C. Patents
Lee Benny
Via Technologies Inc.
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