High-frequency transmission line and an optical module...

Details High-frequency transmission line and an optical module... High-frequency transmission line and an optical module...

2007-02-13

2007-02-13

Chan, Jason (Department: 2613)

Optical communications

Transmitter

C398S117000, C359S254000

Reexamination Certificate

active

10222480

ABSTRACT:
A transmission line with a bending portion is provided, which line comprises any one of a coplanar line, another coplanar waveguide line formed on the dielectric substrate under which a ground layer is provided and a coplanar strip line. A chamfered portion is provided on the outer angular portion of the bending portion of the signal wiring conductor and a triangular conductor is disposed to an inner angular portion thereof. Given that length of the chamfered portion is defined as a, and length of the wiring edge side of the triangular conductor is defined as b and width of the signal wiring conductor is defined as c, it is arranged such that a is greater than b+c×square root of 2. Thereby, a transmission line or an optical module of smaller reflection loss at the bending portion thereof and of improved high-frequency characteristics is provided.

REFERENCES:
patent: 5536906 (1996-07-01), Haas et al.
patent: 6010251 (2000-01-01), Koyanagi et al.
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patent: 06-104612 (1994-04-01), None
patent: 10-197836 (1998-07-01), None
patent: 10-197836 (1998-07-01), None
patent: 2000-057349 (2000-02-01), None
patent: 2000-114801 (2000-04-01), None

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