Multidirectional walkthrough antenna
US6700547B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2002 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Apr 12, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/29
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A flexible interrogator antenna design having a single antenna with an inner and an outer antenna coil positioned in a flat, flexible, rectangular housing or mat which can be positioned in a configuration having two sides and a top across an easily erected temporary frame to form a walkthrough corridor or chute through which livestock having an attached transponder can be driven. The antenna is driven to generate multi-directional electromagnetic fields in each of an ‘X’, ‘Y’ and ‘Z’ axis associated with the walkthrough to detect transponders coming into the fields, regardless of transponder orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.