Antenna apparatus for linearly polarized diversity antenna in RFID reader and method of controlling the antenna apparatus
US7804455B2 · kind B2 · utility
7Cited by
5References
7Claims
0Family size
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Key dates
| Filing date | Jul 24, 2007 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Aug 8, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/245
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Provided are an antenna apparatus for linearly polarized diversity antennas in a radio frequency identification (RFID) reader, and a method of controlling the antenna apparatus. The antenna apparatus includes: a plurality of linearly polarized diversity antennas disposed to have different directions to one another; a switching unit connecting the linearly polarized diversity antennas to the RFID reader; and a controller controlling the switching unit to selectively activate the linearly polarized diversity antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.