Variable impedance matching networks for stretchable antennas
US10804598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Feb 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
One example device having a variable impedance matching network includes a flexible substrate configured to flex in at least an X dimension and a Y dimension, wherein the X and Y dimensions are orthogonal and coplanar with a surface of the flexible substrate; an antenna formed on the flexible substrate, the antenna deformable in at least one of the X or Y dimensions, wherein an inductance (“LA”) of the antenna varies based on a flexing of the flexible substrate in the at least one of the X or Y dimensions, an impedance matching network formed on the flexible substrate and coupled to the antenna, the impedance matching network deformable in the at least one of the X or Y dimensions, and wherein a capacitance (“CM”) or inductance (“LM”) of the impedance matching network is configured to vary (i) based on the flexing of the flexible substrate in the at least one of the X or Y dimensions and a separation between two portions of the impedance matching network, and (ii) in proportion to the varying of LA to maintain a substantially constant impedance of the combination of the impedance matching network and the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.