Reader antenna and RFID electronic shelf including the same
US9033233B2 · kind B2 · utility
0Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2013 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Jul 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A reader antenna includes dipole antennas, the dipole antennas including: a horizontal dipole antenna having the characteristic of horizontal polarization; and a dipole antenna perpendicular to the horizontal dipole antenna and including a vertical dipole antenna having the characteristic of vertical polarization, wherein the horizontal dipole antenna and the vertical dipole antenna may both have the characteristic of circular polarization. The reader antenna can be easily stored in an electronic shelf because it is realized in an ultrathin structure using a single-layered dielectric substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.