High frequency cable having a dual-layer structure
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United States of America Patent
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Jan 29, 2002
Grant Date -
N/A
app pub date -
Jan 25, 2000
filing date -
May 25, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A coaxial cable has two concentric conducting tubes, each tube being made of two layers. Each layer is formed of a higher conductivity material layered onto a base material, which is also conductive. The higher conductivity layer is disposed on the base layer such that there is an edge clearance of base layer that is devoid of the higher conductivity material. As a result, the edges of the base layers can be welded together to form the coaxial cable without the weld interfering with the conductive characteristics of the high conductivity layer. As a result, the structure provides the RF attenuation performance of the high conductivity layer while allowing selection of the base layer based on material cost and ease of manufacture.
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