Transmission line having a transforming impedance

Wave transmission lines and networks – Coupling networks – With impedance matching

Reexamination Certificate

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Details

C333S033000, C333S001000

Reexamination Certificate

active

11023884

ABSTRACT:
A transmission line for high-frequency differential signals and having a transforming impedance is formed into a substrate. The transmission line is comprised of a first slot, the opposing surfaces of which carry a conductive surface capable of carrying electrical signals. By virtue of their dimensions, spacing and dielectric filler, the conductive surfaces constitute a transmission line. A second slot, also with opposing surfaces, each of which also carry a conductive surface but which are spaced differently than the opposing surfaces of the first slot, provide a second transmission line but with a different impedance. The impedances between the two transmission lines are transformed by an impedance transition section of transmission line that is slot section the dimensions of which are tapered to meet the different slot dimensions of the two different transmission line segments.

REFERENCES:
patent: 2002/0033744 (2002-03-01), Sengupta et al.
patent: 2003/0179050 (2003-09-01), Brunker et al.
patent: 2003/0181104 (2003-09-01), Brunker et al.
patent: 2005/0151597 (2005-07-01), Brunker et al.
patent: 2005/0151604 (2005-07-01), Brunker et al.
patent: 2005/0156690 (2005-07-01), Brunker et al.
patent: 2005/0168303 (2005-08-01), Brunker et al.
patent: 2005/0201065 (2005-09-01), Regnier et al.
patent: 2005/0202722 (2005-09-01), Regnier et al.
patent: 2006/0139117 (2006-06-01), Brunker et al.
patent: 0 343 771 (1998-11-01), None
patent: 3-76301 (1991-04-01), None
International Search Report For International Patent Application No. PCT/US2004/043881, May 27, 2005.

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