RFID beam forming system
US8768248B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2010 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Jun 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0617
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-protocol, multi-band array antenna system may be used in Radio Frequency Identification (RFID) system reader and sensory networks. The antenna array may include array elements with an integrated low noise amplifier. The system may employ digital beam forming techniques for transmission and steering of a beam to a specific sensor tag or group of tags in a cell. The receive beam forming network is optimized for detecting signals from each sensor tag. Narrow and wideband interferences may be excised by an interference nulling algorithm. Space division multiplexing may be used by the antenna system to enhance system processing capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.