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Patent Searching and Data


Title:
LEAKY COAXIAL CABLE
Document Type and Number:
WIPO Patent Application WO/2013/161124
Kind Code:
A1
Abstract:
The present invention includes: an inner conductor (10) which extends in the axial direction and in which a signal propagates; an insulator (12) covering the inner conductor (10); a first outer conductor (14) where a conductor wire is placed on an outer circumferential surface of the insulator (12) at a shielding density by which part of the signal leaks outside; and a plurality of second outer conductors (16) that are placed at a constant pitch in the axial direction in contact with the first outer conductor (14) to block the signal. In the axial direction, the electrical length of each of the plurality of second outer conductors (16) is the same as the electrical length between the adjacent second outer conductors, and, when the wavelength shortening rate with respect to the free space wavelength of the propagation wavelength of the signal is ν, the pitch is within the range of between {1/(1+0.766ν)} times and {3/(1+ν)} times the propagation wavelength.

Inventors:
NIWA ATSUHIKO (JP)
SUZUKI FUMIO (JP)
Application Number:
PCT/JP2012/082889
Publication Date:
October 31, 2013
Filing Date:
December 19, 2012
Export Citation:
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Assignee:
FUJIKURA LTD (JP)
International Classes:
H01Q13/20
Foreign References:
JP2010103685A2010-05-06
JP2011061677A2011-03-24
JP2003069338A2003-03-07
Attorney, Agent or Firm:
YAMAZAKI, TAKAAKI (JP)
Takaaki Yamazaki (JP)
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