Antenna arrangement
US8106826B2 · kind B2 · utility
1Cited by
8References
46Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2006 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Jul 21, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna has multiple antenna elements, with a beam forming Butler matrix, having antenna ports and input/output ports, with each of said antenna elements being connected to a respective port of the beam forming Butler matrix. Transceiver circuitry is connected to each of the input/output ports of the beam forming matrix by means of respective distinct transmit and receive paths and a respective duplexer. Individually controllable gain control elements are located in each of the transmit and receive paths. These can be controlled in response to signal strength measurements made by the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.