US 11,677,130 B2
Waveguide and communication system
Jaewon Kim, Woodbury, MN (US); Dipankar Ghosh, Oakdale, MN (US); Craig W. Lindsay, Minneapolis, MN (US); and Matthew S. Stay, Minneapolis, MN (US)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed on Oct. 22, 2021, as Appl. No. 17/508,341.
Application 17/508,341 is a continuation of application No. 16/756,189, granted, now 11,189,898, previously published as PCT/IB2018/058204, filed on Oct. 22, 2018.
Claims priority of provisional application 62/577,462, filed on Oct. 26, 2017.
Prior Publication US 2022/0045415 A1, Feb. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01P 3/16 (2006.01)
CPC H01P 3/16 (2013.01) 15 Claims
OG exemplary drawing
 
1. A waveguide for receiving an incident electromagnetic wave (EMW) having an operating frequency Γ and comprising an array of spaced apart unit cells arranged along the waveguide, the unit cells configured to resonantly couple to the incident EMW and radiate an EMW at the operating frequency propagating inside and along the waveguide, each unit cell configured to couple to the incident EMW with a first coupling efficiency and comprising:
a dielectric body configured to couple to the incident EMW with a second coupling efficiency; and
one or more metal layers disposed on and partially covering the dielectric body, wherein the second coupling efficiency is substantially smaller than the first coupling efficiency.