Expansion band antenna for a wrist instrument and method of maki

Communications: radio wave antennas – Antennas – Body-attached or connected

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224175, 455351, H01G 114, H04B 108

Patent

active

047696567

ABSTRACT:
An antenna for a wrist transmitter or receiver carried in a wrist instrument is made of a wire mesh enclosed in an elastic fabric sleeve. The antenna wire is composed of a tubular mesh of individual copper conductors which are loosely woven, twisted, or braided in such a way as to permit lateral expansion and also to assume a flat configuration. In a preferred form of the invention, the wire is woven in a manner similar to that of a coaxial cable outer shield conductor. The method of making the expansion band antenna consists of inserting an unexpanded wire mesh within a stretchable elastic fabric sleeve, expanding the mesh within the sleeve, and then flattening the sleeve and wire mesh. The wire mesh may be expanded within the sleeve by allowing a stretched sleeve to relax while holding the unexpanded mesh within it, or it may be expanded laterally within the sleeve by a mechanical or pneumatic tool.

REFERENCES:
patent: 2255897 (1941-09-01), Rebori et al.
patent: 2899549 (1959-08-01), Potter
patent: 3063058 (1962-11-01), Vollet
patent: 3136139 (1964-06-01), Sinner
patent: 4648130 (1987-03-01), Kuznetz

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