Wave transmission lines and networks – Long line elements and components – Connectors and interconnections
Reexamination Certificate
2005-08-09
2005-08-09
Jones, Stephen E. (Department: 2817)
Wave transmission lines and networks
Long line elements and components
Connectors and interconnections
C333S033000
Reexamination Certificate
active
06927655
ABSTRACT:
There is provided a thin and small size connector-less optical transmission module M which assures excellent high frequency characteristic. This optical transmission module comprises transmission line substrates and a coaxial cable for connecting these transmission line substrates and is connected to the transmission line substrate via a contact sleeve which is provided with projections fixed to the external conductor of the coaxial cable and projected in the extending direction of the coaxial cable. Since an electromagnetic field mode alleviating portion formed of a dielectric material is provided to the core wire of the coaxial cable, the thin and small size optical transmission module M can assure less amount of radiation of an interference electromagnetic wave, high frequency characteristic through connection with the coaxial cable.
REFERENCES:
patent: 5404117 (1995-04-01), Walz
patent: 6100774 (2000-08-01), Cox et al.
patent: 6661318 (2003-12-01), Tamaki et al.
patent: 6774742 (2004-08-01), Fleury et al.
Suga Takashi
Torigoe Makoto
Jones Stephen E.
OpNext Japan, Inc.
Townsend and Townsend / and Crew LLP
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