公开(公告)号：US20240162624A1

公开(公告)日：2024-05-16

申请号：US18552680

申请日：2022-03-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Dipankar Ghosh ,  Weigang Lin ,  Jie Huang ,  Min Ding ,  Wei Li ,  Kun Wang

IPC: H01Q17/00 ,  H01Q1/24 ,  H01Q1/42

CPC classification number: H01Q17/007 ,  H01Q1/243 ,  H01Q1/422

Abstract: Anti-reflective assemblies comprise: a high dielectric permittivity substrate comprising a ceramic and a nonporous multilayer anti-reflective film contacting or adhesively bonded to the substrate. The nonporous multilayer anti-reflective film comprises sequential first, second, and third layers of sequentially decreasing dielectric permittivity. Each layer comprises a respective polymer matrix and filler particles.

公开(公告)号：US20170084982A1

公开(公告)日：2017-03-23

申请号：US15310477

申请日：2015-05-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ya-Peng Fang ,  Wei Li ,  Yang Lin

IPC: H01Q1/22 ,  H01Q7/00 ,  H04B5/00

CPC classification number: H01Q1/2291 ,  H01Q7/00 ,  H04B5/0056 ,  H04B5/0075 ,  H04B5/0081

Abstract: The invention provides a near field communication module comprising: a magnetic substrate having opposing first and second surfaces and first and second through holes extending from the first surface to the second surface; and an antenna comprising: an annular coil having first and second ends, first and second feeding points, and first and second connecting lines for connecting the first and second ends of the annular coil to the first and second feeding points, respectively, wherein the antenna is configured such that the annular coil is provided on the first surface of the magnetic substrate, the first and second feeding points are provided on the second surface of the magnetic substrate, and the first and second connecting lines extend through the first and second through holes, respectively. The near field communication module has a greatly simplified structure and markedly reduced