Transmission line with a transforming impedance and solder...

Wave transmission lines and networks – Plural channel systems – With balanced circuits

Reexamination Certificate

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C333S005000, C333S238000, C333S034000

Reexamination Certificate

active

07154355

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 slot, the opposing surfaces of which carry a conductive surface capable of carrying electrical signals. The conductive surface on the opposing surfaces is gradually receded along a length of the slot. An The transmission line of claim 1, further including a non-air dielectric filling the space between the opposing faces in said second length of said slot, said non-air dielectric having a thickness that extends from the depth D, to the bottom of the slot at the first end of said second length, the thickness of the non-air dielectric continuously increasing along said second length up to the substrate surface at the second end of the second length. equivalent amount of metallization is applied on the substrate's surface and electrically continuous with conductive surfaces on the slot's opposing sidewalls. The metallization on the substrate's surface provide solder lands. Dielectric in the slot prevents solder wicking.

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patent: 6522173 (2003-02-01), Otsuka
patent: 2005/0151604 (2005-07-01), Brunker et al.
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patent: 2005/0202722 (2005-09-01), Regnier et al.
patent: 2006/0139117 (2006-06-01), Brunker et al.
patent: 0 954 049 (1999-11-01), None
Turinsky G: “Streifenleiter Hoher Packungsdichte”, Radio Fernsehen Elektronik, vol. 41, No. 8, Aug. 1, 1992.
WO 03/058750 A1 published on Jul. 17, 2003, Molex Incorporated.
International Search Report for International Application No. PCT/US2004/043094 mailed on Mar. 31, 2005.

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