US 12,034,219 B2
Transparent antenna stack and assembly
Stephen P. LeBlanc, Austin, TX (US); Jeffrey A. Tostenrude, Leander, TX (US); Gregory L Abraham, Austin, TX (US); and Vicki L Richmond, Austin, TX (US)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed on Sep. 30, 2021, as Appl. No. 17/449,470.
Application 17/449,470 is a division of application No. 17/250,472, granted, now 11,165,171, previously published as PCT/IB2020/055376, filed on Jun. 8, 2020.
Claims priority of provisional application 62/860,374, filed on Jun. 12, 2019.
Prior Publication US 2022/0021131 A1, Jan. 20, 2022
Int. Cl. H01Q 21/28 (2006.01); H01Q 1/38 (2006.01); H01Q 9/04 (2006.01); H01Q 9/28 (2006.01); H01Q 9/40 (2006.01)
CPC H01Q 21/28 (2013.01) [H01Q 1/38 (2013.01); H01Q 9/0414 (2013.01); H01Q 9/285 (2013.01); H01Q 9/40 (2013.01)] 2 Claims
OG exemplary drawing
 
1. An antenna assembly comprising:
an optically transparent substrate;
a plurality of antennas and a plurality of leads disposed on the substrate, each antenna and each lead comprising an electrically conductive metal mesh comprising a plurality of interconnected electrically conductive metal traces defining a plurality of enclosed open areas, each lead corresponding to a different antenna and electrically connecting the antenna to a conductive pad for connection to an electrical circuitry, wherein the metal mesh of each antenna and each lead has a percent open area greater than about 50%, wherein the metal traces of the metal mesh in at least one lead have varying widths, and wherein at least one antenna in the plurality of antennas is disposed on one side of the transparent substrate, and at least one other antenna in the plurality of antennas is disposed on an opposite side of the transparent substrate.