Transponder and antenna
US6930646B2 · kind B2 · utility
15Cited by
11References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1996 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Aug 22, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/75
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An antenna for a transponder comprises a magnetic core composed of layered amorphous metallic thin plates or composite plates of soft magnetic flakes and a synthetic resin, and a coil wound on the magnetic core. A transponder comprises two antennas set forth above, and a spiral antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.