CPC B29C 48/09 (2019.02) [B29C 48/0012 (2019.02); B29C 48/022 (2019.02); B29C 48/15 (2019.02); H01Q 15/08 (2013.01); H01Q 21/205 (2013.01); B29K 2023/06 (2013.01); B29K 2995/0006 (2013.01); B29K 2995/0094 (2013.01); B29L 2011/0016 (2013.01)] | 6 Claims |
1. A dielectric material, the dielectric material being a tube structure, and a tube wall of the tube structure being formed by foaming a foam material; and the dielectric material further comprising metal wires, and the metal wires being disposed in a longitudinal direction of the tube structure, being evenly distributed in the tube wall of the tube structure without being in contact with each other,
wherein a contour shape of an outer periphery of a cross section of the tube structure is a circle, a contour shape of an inner periphery of a cross section of the tube structure is a circle, the diameter of the outer periphery is 4 mm to 12 mm, and the diameter of the inner periphery is 0.3 times to 0.7 times the diameter of the outer periphery, and a length of the tube structure does not exceed 20 mm.
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