Frequency multiplexed radio frequency identification
US10025960B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2017 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Jun 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/713
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio frequency identification (RFID) system for frequency multiplexing includes, in an exemplary embodiment, an RFID interrogator configured for generating an RFID signal, wherein a channel frequency of the RFID signal changes over time within an operating bandwidth; and one or more electromagnetic transmissive elements each extending between a first end thereof and a second end thereof, each of the electromagnetic transmissive elements electrically coupled with the RFID interrogator at the first end thereof, each of the electromagnetic transmissive elements comprising a frequency dependent load at the second end thereof and configured for transmitting the RFID signal from the RFID interrogator to the frequency dependent load, wherein the frequency dependent load presents different electromagnetic characteristics to the RFID signal transmitted to the frequency dependent load depending on the channel frequency of the RFID signal. Other embodiments include a method for frequency multiplexing including similar components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.