US 12,431,284 B2
Flexible RF coil and method for manufacturing flexible RF coil
Shuanghao Lu, Beijing (CN)
Assigned to Beijing Dream Ink Technologies Co., Ltd., Beijing (CN)
Appl. No. 17/767,833
Filed by Beijing Dream Ink Technologies Co., Ltd., Beijing (CN)
PCT Filed Oct. 20, 2021, PCT No. PCT/CN2021/124885
§ 371(c)(1), (2) Date Apr. 8, 2022,
PCT Pub. No. WO2022/089270, PCT Pub. Date May 5, 2022.
Claims priority of application No. 202011154919.8 (CN), filed on Oct. 26, 2020.
Prior Publication US 2023/0368971 A1, Nov. 16, 2023
Int. Cl. H01F 27/28 (2006.01); H01F 41/04 (2006.01)
CPC H01F 41/041 (2013.01) 7 Claims
OG exemplary drawing
 
1. A flexible radio frequency (RF) coil, comprising:
a first fabric layer,
a first adhesive film layer,
an RF printing layer,
a second adhesive film layer, and
a second fabric layer;
wherein the first adhesive film layer is composited on a surface of the first fabric layer, the second adhesive film layer is composited on a surface of the second fabric layer;
the RF printing layer is encapsulated between the first adhesive film layer and the second adhesive film layer;
the RF printing layer comprises a mask not wet by a liquid metal, and a liquid metal coil formed in a coil-shaped groove reserved in the mask; and
the first fabric layer and the second fabric layer are made of a fabric with stretchable extend of not less than 1% and not higher than 30%, and the mask not wet by the liquid metal is a patterned carbon powder layer printed by a laser printer.