Backscatter systems, devices, and techniques utilizing CSS modulation and/or higher order harmonic cancellation
US10812130B2 · kind B2 · utility
8Cited by
51References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2017 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Oct 18, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2215/067
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Examples of backscatter systems, device, and techniques are described herein. Example backscatter devices may utilize CSS modulation to provide backscatter signals including CSS signals (e.g., LoRa packets). Utilizing CSS modulation may advantageously allow for backscatter communication over wide areas. Examples of backscatter devices described herein may toggle the impedance of the backscatter device between multiple (e.g., eight) impedances to reduce and/or eliminate higher order harmonic components in the backscatter signal (e.g., third and fifth harmonic components).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.