Antenna arrangement
US7642917B2 · kind B2 · utility
23Cited by
11References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2005 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Oct 16, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A network of antennas for contactless reading or writing of RFID tags in a detection volume, including three or four flat, independent antennas sequentially connected to a single reader by a switch, wherein planes of the antennas pass through a reading/writing/detection volume centered in the detection volume, for every pair of antennas, an intersection of their planes is included in the optimal reading/writing volume, and the antennas are arranged so that any direction in the optimal reading/writing volume forms an angle of about 45° or less with at least one of the planes of the antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.