Smart antenna with adjustable radiation pattern
US7557765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2007 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Jan 28, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/106
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A smart antenna with an adjustable radiation pattern is described. A plurality of slot antennas are formed at a metal layer which is grounded, wherein openings of the slot antennas point to different directions. One surface of an insulated layer is covered by the metal layer. A coaxial feeding structure is provided through the insulated layer. A plurality of microstrip lines are formed at the other surface of the insulated layer and can feed the radio frequency signals to the slot antennas, respectively. Pluralities of switches are connected to each microstrip line and the coaxial feeding structure. A plurality of bias circuits are electrically connected to each switch, respectively, to control the status of the switch and adjust the operation statuses of the slot antennas individually to form an adjustable radiation pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.