Wave transmission lines and networks – Plural channel systems – With balanced circuits
Reexamination Certificate
2005-12-29
2008-12-02
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Plural channel systems
With balanced circuits
C333S260000
Reexamination Certificate
active
07459985
ABSTRACT:
In some embodiments, an circuit card includes an electronic circuit substrate, a ground plane on the electronic circuit substrate, first and second differential signal pads on the electronic circuit substrate, a ground return signal pad associated with the first and second differential signal pads, the ground return signal pad being connected to the ground plane on the electronic substrate, and a cutout structure on the ground plane positioned near a location where the ground return signal pad connects to the ground plane, wherein the cutout structure is configured to direct a ground return path associated with the first and second differential signal pads to the ground return signal pad associated with the first and second differential signal pads. Other embodiments are disclosed and claimed.
REFERENCES:
patent: 4891616 (1990-01-01), Renken et al.
patent: 6501352 (2002-12-01), Koriyama et al.
patent: 2003/0034854 (2003-02-01), Tzeng
patent: 2003/0180011 (2003-09-01), Aronson
Abbott John J.
Mellitz Richard
Mundada Gopal R.
Anderson Robert D.
Intel Corporation
Lee Benny
LandOfFree
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