Antenna and RFID tag
US7339550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2006 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Oct 27, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna for an RFID tag includes each power feeding parts 11 that is formed of a conductor, meandering parts 13a and 13b that are formed of conductors shaped as a pair of meandering lines, connected to the power feeding parts 11, and extend from the power feeding parts 11 toward both ends of the power feeding parts 11, respectively, a pair of radiating parts 14a and 14b that are formed of conductors and connected to outer ends of the pair of meandering parts 13a and 13b, respectively. The meandering parts 13a and 13b include a plurality of sides arranged in a longitudinal direction where the meandering parts 13a and 13b extend. Further, the lengths of portions, where the ends of the radiating parts 14a and 14b facing the meandering parts 13a and 13b face the sides closest to the radiating parts 14a and 14b among the plurality of sides of the meandering parts 13a and 13b in a direction orthogonal to the longitudinal direction, are smaller than the widths of the widest portions of the radiating parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.