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1. WO2020118119 - ADAPTION OF TEXTILE ARTICLE FOR RADIO FREQUENCY (RF) ABSORPTION AND ATTENUATION

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[ EN ]

CLAIMS

What is Claimed:

1. A method of fabricating a textile article that is configured to absorb and attenuate radio frequency (RF) signals, the method comprising:

generating a resin substrate by incorporating a first portion of iron oxide particles and a second portion of an elastic polymer solution, wherein the iron oxide particles may correspond to one or more of Fe304Fe, Fe304Ni, and Fe304.;

generating a wet laminate by saturating a reinforced fiber matrix within the resin substrate;

determining a cure time for the wet laminate, based at least in part on a volume ratio of the first portion of iron oxide particles by volume relative to the second portion of elastic polymer solution by volume; and

curing the wet laminate at room temperature for the cure time.

2. The method of claim 1, further comprising:

determining an RF signal range to which the textile article is to absorb and attenuate RF signals; and

quantifying the first portion of iron oxide particles based at least in part on the RF signal range.

3. The method of claim 2, further comprising:

determining a required viscosity to overlay the resin substrate onto the reinforced fiber matrix;

determining that the current viscosity of the resin substrate is greater than the required viscosity; and

adding a third portion of at least one of a thinning fluid or a cure retarder to reduce the current viscosity to be less than or equal to the required viscosity.

4. The method of claim 2, further comprising:

determining that an additional volume ratio of the resin substrate to the reinforced fiber matrix is greater than a predetermined volume ratio, the predetermined volume ratio corresponding to a volume ratio associated with a desired adhesive property associated with the reinforced fiber matrix and the resin substrate; and

adding at least one of a third portion of thinning fluid or a cure retarder to reduce the volume ratio to be equal to or less than the predetermined volume ratio.

5. The method of claim 1, further comprising:

identifying an RF signal range for absorption and attenuation of RF signals to be less than 3 GHz; and

determining the iron oxide particles to be Fe304Fe, based at least in part on the RF signal range, and

quantifying the first portion of iron oxide particles and the second portion of elastic polymer solution based at least in part of a predetermined ratio by volume of the first portion and the second portion that corresponds to 1 : 16.

6. The method of claim 1, further comprising:

identifying an RF signal range for absorption and attenuation of the RF signals to be greater than or equal to 3 GHz and less than 8 GHz; and

determining the iron oxide particles to be Fe304Ni, based at least in part on the RF signal range, and

quantifying the first portion of iron oxide particles and the second portion of elastic polymer solution based at least in part of a predetermined ratio by volume of the first portion relative to the second portion that corresponds to 1 : 16, based at least in part on the RF signal range.

7. The method of claim 1, further comprising:

identifying an RF signal range for absorption and attenuation of RF signals to be greater than 10 GHz; and

determining the iron oxide particles to be Fe304, based at least in part on the RF signal range, and

quantifying the first portion of iron oxide particles and the second portion of elastic polymer solution based at least in part of a predetermined ratio by volume of the first portion relative to the second portion that corresponds to 1 : 16, based at least in part on the RF signal range.

8. The method of claim 1, further comprising:

identifying an RF signal range for absorption and attenuation of RF signals that includes RF signals that are less than 3 GHz through to RF signals greater than 10 GHz; determining the iron oxide particles to be a combination of Fe304Fe, Fe304Ni, and Fe304, based at least in part on the RF signal range, wherein a relative portion by volume of Fe304Fe, Fe304Ni, and Fe304 corresponds to 1: 1 : 1; and

quantifying the first portion of iron oxide particles and the second portion of elastic polymer solution based at least in part of a predetermined ratio by volume of the first portion relative to the second portion that corresponds to 1:3, based at least in part on the RF signal range.

9. A fabrication process for a textile article that is configured to absorb and attenuate RF signals, the fabrication process comprising:

identifying an RF signal range for absorption and attenuation of the RF signals; determining a type of iron oxide particles, based at least in part on the RF signal range;

quantifying a first portion of the iron oxide particles and a second portion of elastic polymer solution based at least in part on the RF signal range;

generating a wet laminate by saturating a reinforced fiber matrix within the resin substrate;

determining a cure time for the wet laminate, based at least in part on a volume ration of the first portion of iron oxide particles by volume relative to the second portion of elastic polymer solution by volume; and

curing the wet laminate at room temperature for the cure time.

10. The fabrication process of claim 9, further comprising:

determining an amount of viscosity that is required to overlay the resin substrate onto the reinforced fiber matrix, and

wherein the first portion of the iron oxide particles and the second portion of the elastic polymer solution is further based at least in part on the amount of viscosity.

11. The fabrication process of claim 9, further comprising:

determining a required viscosity to overlay the resin substrate onto the reinforced fiber matrix;

determining that a current viscosity of the resin substrate is greater than the required viscosity; and

adding a third portion of at least one of a thinning fluid or a cure retarder to reduce the current viscosity to be less than or equal to the required viscosity.

12. A textile article configured to absorb and attenuate radio frequency (RF) signals, the textile article comprising:

a laminate formed via curing a wet laminate at room temperature for a cure time, the wet laminate comprising a resin substrate and a reinforced fiber matrix,

wherein, the reinforced fiber matrix comprises one of a bamboo fiber matrix, a cotton fiber matrix, a polyester fiber matrix, a nylon fiber matrix, or a wool fiber matrix, and

wherein, the resin substrate comprises a first portion of iron oxide particles and a second portion of the elastic polymer solution, the first portion of iron oxide particles being based at least in part on an RF signal range that the textile article is configured to absorb and attenuate.

13. The textile article of claim 12, wherein the RF signal range for absorption and attenuation of the RF signals corresponds to RF signals greater than or equal to 3 GHz and less than 8 GHz,

wherein the iron oxide particles correspond to Fe304Ni, based at least in part on the RF signal range, and

wherein the first portion of iron oxide particles and the second portion of elastic polymer solution corresponds to a predetermined ratio by volume of the first portion relative to the second portion that corresponds to 1 : 16, based at least in part on the RF signal range.

14. The textile article of claim 12, wherein the RF signal range for absorption and attenuation of the RF signals corresponds to RF signals greater than 10GHz,

wherein the iron oxide particles correspond to Fe304, based at least in part on the RF signal range, and

wherein the first portion of iron oxide particles and the second portion of elastic polymer solution corresponds to a predetermined ratio by volume of the first portion relative to the second portion that corresponds to 1 : 16, based at least in part on the RF signal range.

15. The textile article of claim 12, wherein the RF signal range for absorption and attenuation of the RF signals corresponds to RF signals less than 3 GHz through to RF signals greater than 10GHz,

wherein the iron oxide particles correspond to a combination of Fe304Fe, Fe304Ni, and Fe304, based at least in part on the RF signal range, wherein a relative portion by volume of Fe304Fe, Fe304Ni, and Fe304 corresponds to 1 : 1: 1, and

wherein the first portion of iron oxide particles and the second portion of elastic polymer solution corresponds to a predetermined ratio by volume of the first portion relative to the second portion that corresponds to 1 :3, based at least in part on the RF signal range.