Synthesized-beam RFID reader system with gain compensation and unactivated antenna element coupling suppression
US9954278B1 · kind B1 · utility
7Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Jul 29, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/061
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A synthesized-beam transceiver system steers a beam of a two-dimensional antenna array by activating a first subset of antenna elements to orient the beam in a first direction and subsequently activating a second subset of the antenna elements to orient the beam in a different direction. The system also electrically connects antenna elements that are inactive, not in the first subset, or not in the second subset to a reference potential of the array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.