Directional RFID antenna system
US10891450B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2019 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | May 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/2216
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Antenna assemblies for controlling radiation patterns or backscatter sensing zones are provided. The antenna assemblies may be used in a system for identifying items, such as a radio-frequency identification (RFID) system having an RFID reader and a plurality of RFID tags. In one embodiment, an antenna assembly may include a directional antenna having a fanned-shaped radiation pattern. In addition to the directional antenna, the antenna assembly may further include a right shroud element configured to reduce a right side of the fanned-shaped radiation pattern and a left shroud element configured to reduce a left side of the fanned-shaped radiation pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.