Wideband floating wire antenna using a double negative...

Communications: radio wave antennas – Antennas – Waterborne

Reexamination Certificate

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Reexamination Certificate

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11713832

ABSTRACT:
A buoyant cable antenna element is taught that employs a specific double-negative meta-material sheath with a negative permeability. The double-negative meta-material sheath is disposed over the insulated wire portion of the buoyant cable antenna element. The double-negative meta-material sheath enables a deliberate reduction in the antenna wire inductance to a zero value at a desired critical frequency. Reducing the antenna wire inductance to zero creates a traveling wave structure antenna having enhanced bandwidth.

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patent: 2006/0028385 (2006-02-01), Davis et al.
David A. Tonn and R. Bansal, Insulated Antenna With Metamaterial Coating Operating in Lossy Medium, Article, Apr. 27, 2006, vol. 42, No. 9, Electronic Letters, USA.

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