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Title:
FLEXIBLE TEST CABLE
Document Type and Number:
Japanese Patent JP2005276829
Kind Code:
A
Abstract:

To provide a cable which has approximate RF invisibility in an RF band of interest, having a flexibility and can be used in a variety of test forms.

A flexible test cable has a center conductor (210), a conductive sleeve (240) with an effective electrical length equal to an odd quarter wavelength of a frequency of interest, a dielectric spacer (230) located inside the conductive sleeve (240) for preventing a portion of the center conductor (210) from electrically coupling to the conductive sleeve (240), and a dielectric joint (220) for maintaining a portion of the center conductor (210) in the middle of an end of the conductive sleeve (240). The dielectric spacer (230) can be formed in a variety of shapes from rigid or compressible dielectric materials. Using the dielectric joint (220) to link together multiple conductive sleeves (240) results in a flexible test cable (200) with electrical transparency at the frequency of interest.


Inventors:
PHILLIPS JAMES P
LEININGER KRISTEN M
MOLLER PAUL J
Application Number:
JP2005078935A
Publication Date:
October 06, 2005
Filing Date:
March 18, 2005
Export Citation:
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Assignee:
MOTOROLA INC
International Classes:
G01R1/067; G01R1/24; H01B7/04; G01R29/08; H01B11/18; (IPC1-7): H01B7/04
Domestic Patent References:
JPH09321482A1997-12-12
JP2001077607A2001-03-23
JPH1092233A1998-04-10
JPS6436917U1989-03-06
JPH09321482A1997-12-12
JP2001077607A2001-03-23
JPH1092233A1998-04-10
JPS6436917U1989-03-06
Foreign References:
US5397994A1995-03-14
US5397994A1995-03-14
Attorney, Agent or Firm:
Mamoru Kuwagaki