Tunable radio frequency (RF) absorber and thermal heat spreader
US11784416B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2020 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Mar 31, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a first layer having an RF lossy material, a second layer having the RF lossy material, and a plurality of conductive or resistive pads arranged in a planar array between the first layer and the second layer. The apparatus may also include a plurality of thermal vias, where each thermal via may correspond to one of the pads, may extend through at least the first layer, and may be formed of a thermally-conductive material. Dimensions of each pad may be selected based on a desired resonant frequency band, and the desired resonant frequency band may be associated with RF energy transmitted by at least one RF source in proximity to the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.