Title:
HIGH-SPEED DIFFERENTIAL CABLE
Document Type and Number:
WIPO Patent Application WO/2010/104203
Kind Code:
A1
Abstract:
A high-speed differential cable (1) comprises two-core signal lines in each of which a first dielectric layer (12) is provided around the perimeter of an internal conductor (11), which are arranged so that the cores thereof are in parallel, a second dielectric layer (13) provided around the perimeter of the two-core signal lines, drain lines (14) which are disposed outside the second dielectric layer and at both sides of the two-core signal lines, respectively, and arranged in parallel to the signal lines, an external conductor (15) which is provided longitudinally around the perimeter of the second dielectric layer and the drain lines, with the insulative side thereof arranged outside and the conductive side thereof arranged inside, a casing (16) provided around the perimeter of the external conductor, and drain line trenches (17) provided at the perimeter of the second dielectric layer, where the drain lines are disposed. In each of the drain line trenches (17), at least part of the circumference of the drain line can be engaged. Since the signal lines and the drain lines can be thereby arranged symmetrically with high precision, it is possible to ensure excellent electrical balance of the two cores of the signal lines and obtain excellent electrical property and excellent transmission property. Further, since the external conductor is provided longitudinally, it is possible to prevent the suckout of attenuation in a high frequency region.
Inventors:
SHIMOSAWA KATSUO (JP)
ODA KEN (JP)
ARAI OSAMU (JP)
WADA TAKASHI (JP)
KUBO MASATO (JP)
ODA KEN (JP)
ARAI OSAMU (JP)
WADA TAKASHI (JP)
KUBO MASATO (JP)
Application Number:
PCT/JP2010/054476
Publication Date:
September 16, 2010
Filing Date:
March 10, 2010
Export Citation:
Assignee:
JUNKOSHA INC (JP)
SHIMOSAWA KATSUO (JP)
ODA KEN (JP)
ARAI OSAMU (JP)
WADA TAKASHI (JP)
KUBO MASATO (JP)
SHIMOSAWA KATSUO (JP)
ODA KEN (JP)
ARAI OSAMU (JP)
WADA TAKASHI (JP)
KUBO MASATO (JP)
International Classes:
H01B11/00; H01B7/08; H01B11/06
Foreign References:
| JP2002358841A | 2002-12-13 | |||
| JPS6329413A | 1988-02-08 | |||
| JPS61259407A | 1986-11-17 | |||
| JP2007059323A | 2007-03-08 | |||
| JPS6276424U | 1987-05-16 | |||
| JP2003141944A | 2003-05-16 | |||
| JP2004079341A | 2004-03-11 | |||
| JP2008226564A | 2008-09-25 | |||
| JP2004071287A | 2004-03-04 | |||
| JPH0241332U | 1990-03-22 | |||
| JP2009032685A | 2009-02-12 | |||
| JP2002358841A | 2002-12-13 |
Other References:
See also references of EP 2407979A4
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