HIGH ACCURACY FOAMED COAXIAL CABLE AND METHOD FOR MANUFACTURING THE SAME

WIPO Patent Application WO/2003/067611

A1

A high accuracy foamed coaxial cable comprising an inner conductor produced by stranding a plurality of conductive wires, a low-permittivity foamed insulator composed of a porous tape body formed on the outer circumference of the inner conductor, an outer conductor composed of a large number of thin conductive wires braided on the outer circumference of the foamed insulator, and a heat resistant resin sheath formed on the outer circumference of the outer conductor, herein the inner conductor has the accuracy of an side diameter set at 4/1000 mm or less, the foamed insulator has a circularity and the accuracy of an outside diameter set at ±0.02 mm, the outer conductor has a circularity and the accuracy of an outside diameter set at ±2% of the central value of outside diameter, and the accuracy of characteristic impedance between the inner conductor and the outer conductor through the foamed insulator is set at ± 1 &ohm .

YAMAGUCHI TETSUO (JP)
IWASAKI MITSUO (JP)
ISHIDO TAKAO (JP)
KUSAMA TAKAAKI (JP)
NANJYO MITSUO (JP)
MATSUMURA SHIGERU (JP)
MURAYAMA SHIGERU (JP)

PCT/JP2003/001358

August 14, 2003

February 10, 2003

Click for automatic bibliography generation  

HIRAKAWA HEWTECH CORP (JP)
ADVANTEST CORP (JP)
YAMAGUCHI TETSUO (JP)
IWASAKI MITSUO (JP)
ISHIDO TAKAO (JP)
KUSAMA TAKAAKI (JP)
NANJYO MITSUO (JP)
MATSUMURA SHIGERU (JP)
MURAYAMA SHIGERU (JP)

H01B11/18; H01B13/016; (IPC1-7): H01B11/18; H01B13/00

JPH0869717A	1996-03-12
JPH0737450A	1995-02-07
JPH07249326A	1995-09-26
JP2003051220A	2003-02-21
JP2002050246A	2002-02-15

Hirata, Tadao (Park Side House 2, Ichibanch, Chiyoda-ku Tokyo, JP)

View/Download PDF      PDF Help

Previous Patent: SIGNAL WIRE SHIELDING TECHNIQUE

Next Patent: SELF-ADHESIVE MAGNET RECEPTIVE SURFACE COVERING