Method and apparatus for an adaptive multiple-input multiple-output (MIMO) wireless communications systems
First Claim
1. A multifunctional reconfigurable antenna array, comprising:
- a selectively alterable effective physical antenna array configuration having radiation/polarization properties, the multifunctional reconfigurable antenna array including a plurality of antenna components and a plurality of selectively controllable switches coupling selected ones of the plurality of antenna components together into a multifunctional reconfigurable subarray of antenna components, wherein said antenna components are physically alterable based on an input signal and comprise pixel-patches of any geometric shape arranged in a pixel-patch antenna array in which two adjacent pixel patches are interconnected by an RF-MEM actuator; and
an input configured to receive adaptive control signals for transmission to the plurality of selectively controllable switches in order to dynamically reconfigure the radiation/polarization properties of the antenna array by altering the physical structure of the antenna components.
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Abstract
An adaptive MIMO communications system includes a multifunctional reconfigurable antenna with a selectively alterable effective physical antenna array configuration and radiation/polarization properties, which configuration and properties is a component in the optimization of the adaptive system parameters. The multifunctional reconfigurable antenna comprises a plurality of antenna components and a plurality of selectively controllable switches coupling selected ones of the plurality of antenna components together into a multifunctional reconfigurable subarray of antenna components. A processing unit coupled to the multifunctional reconfigurable antenna determines communication channel conditions for generating adaptive control signals to the plurality of selectively controllable switches to selectively apply a selected space-time coding protocol or a selected beam forming protocol together on the plurality of antenna components depending on channel conditions.
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Citations
5 Claims
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1. A multifunctional reconfigurable antenna array, comprising:
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a selectively alterable effective physical antenna array configuration having radiation/polarization properties, the multifunctional reconfigurable antenna array including a plurality of antenna components and a plurality of selectively controllable switches coupling selected ones of the plurality of antenna components together into a multifunctional reconfigurable subarray of antenna components, wherein said antenna components are physically alterable based on an input signal and comprise pixel-patches of any geometric shape arranged in a pixel-patch antenna array in which two adjacent pixel patches are interconnected by an RF-MEM actuator; and an input configured to receive adaptive control signals for transmission to the plurality of selectively controllable switches in order to dynamically reconfigure the radiation/polarization properties of the antenna array by altering the physical structure of the antenna components. - View Dependent Claims (2, 3, 4, 5)
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Specification