Adaptive antenna neutralization network
AssigneeRF Micro Devices, Inc.
InventorRuediger Bauder
Life of this patent
Estimating the term…
Abstract
An adaptive antenna neutralization network (AANN) for neutralizing coupling between a first antenna and a second antenna of a mobile terminal is disclosed. The AANN includes an array of reactive branches. Each of the reactive branches includes a reactive element and an electrically controlled switch with a control input for selectively coupling the reactive element between the first antenna and the second antenna. Also included is a switch driver having an output coupled to the control input of each electrically controlled switch, and a controller having an output for sending control signals to the switch driver to turn on or off individual ones of the electrically controlled switches in response to conditions that indicate a coupling state between the first antenna and the second antenna.
Claims28
An adaptive antenna neutralization network (AANN) for neutralizing coupling between a first antenna and a second antenna of a mobile terminal, the AANN comprising:
- an array of reactive branches, each reactive branch including a reactive element and an electrically controlled switch with a control input for selectively coupling the reactive element between the first antenna and the second antenna;
- a switch driver having an output coupled to the control input of each electrically controlled switch;
- and
- a controller having an output for sending control signals to the switch driver to turn on or off the electrically controlled switch of each reactive branch selected in response to a coupling state between the first antenna and the second antenna.
A mobile terminal comprising:
- a first antenna;
- a second antenna;
- and
- an adaptive antenna neutralization network (AANN) comprising:
- an array of reactive branches, each reactive branch having a reactive element and an electrically controlled switch with a control input for selectively coupling the reactive element between the first antenna and the second antenna;
- a switch driver having an output coupled to the control input of each electrically controlled switch;
- and
- a controller having an output for sending control signals to the switch driver to turn on or off the electrically controlled switch of each reactive branch selected to minimize a coupling state between the first antenna and the second antenna.
An adaptive antenna neutralization network (AANN) for neutralizing coupling between a second antenna and a first antenna of a mobile terminal, the AANN comprising:
- an array of reactive branches, each reactive branch including a reactive element and an electrically controlled switch with a control input for selectively coupling the reactive element between the first antenna and the second antenna;
- a switch driver having an output coupled to the control input of each electrically controlled switch;
- a first inductor selectively coupled between the array of reactive branches and the first antenna via a first switch that is in series with the first inductor;
- a second inductor selectively coupled between the array of reactive branches and the second antenna via a second switch that is in series with the second inductor;
- and
- a controller having an output for sending control signals to the switch driver to turn on or off the electrically controlled switch of each reactive branch selected in response to a coupling state between the first antenna and the second antenna.
Dependencies are inferred from the claim text.