07-11-2019 дата публикации
Номер: US20190336038A1
Принадлежит:
There is described a wearable respiration sensor generally having a stretchable substrate to be worn around a user's torso; and a dipole antenna having two flexible conductive elements extending in opposite directions from a center, relative to a dipole axis, and being secured to the stretchable substrate, each of the two flexible conductive elements having a proximate end near the center, a distal end away from the center, and a curved portion curving away from and back towards the dipole axis between the proximate end and the distal end, the two flexible conductive elements being in a point reflection symmetry relative to one another relative to said center in a manner that, when the stretchable substrate is stretched along the dipole axis, the curved portions of the two flexible conductive elements are flattened and the distal ends are moved away from one another. 1. A wearable respiration sensor comprising:a stretchable substrate configured to be worn around a user's torso;a dipole antenna having two flexible conductive elements extending in opposite directions from a center, relative to a dipole axis, and being secured to the stretchable textile substrate, each one of the two flexible conductive elements having a proximate end near the center, a distal end away from the center, and a curved portion curving away from and back towards the dipole axis between the proximate end and the distal end, in a plane of the stretchable substrate, the two flexible conductive elements being in a point reflection symmetry relative to one another relative to said center configured in a manner that, when the stretchable substrate is stretched by the user's respiration, the distal ends are moved relative to one another; anda receiving port being electrically connected to the two flexible conductive elements.2. The wearable respiration sensor of further comprising an interrogation system having an emitter configured to emit a signal for transmission by the dipole antenna via the ...
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