Array antenna, radio communication apparatus, and array antenna control method

Inactive Publication Date: 2010-05-13
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]As mentioned above, the MINO method substantially improves communication performance in the multipath environment. However, in a line-of-sight environme

Problems solved by technology

However, in a line-of-sight environment, for example, where a high level signal comes from a certain direction, the effect of the MIMO method in improving communication performance is diminished.
However, because the direction at which signals arrive is not defined as a

Method used

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Examples

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Example

[0034]An exemplary embodiment of the present invention will be described in further detail with reference to the accompanying drawings.

[0035]FIG. 1 is a block diagram showing a schematic configuration of an array antenna according to an exemplary embodiment of the present invention. Referring to FIG. 1, array antenna 100 includes group of antenna elements 101 and switching section 102.

[0036]Group of antenna elements 101 has a plurality of antenna elements. Each antenna element included in group of antenna elements 101 offers individual control over the state of a feeding point.

[0037]Switching section 102 switches the feeding points of the antenna elements included in group of antenna elements 101 such that group of antenna elements 101 is operated either as an antenna for MIMO communication which transmits / receives a plurality of signals in parallel or as a directional array antenna which controls the directivity towards the direction at which the signals arrive.

[0038]When group of a

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Abstract

An array antenna includes a group of antenna elements and a switching section. The group of antenna elements has a configuration in which a plurality of antenna elements is arranged. The switching section has a plurality of switch elements capable of individually switching the feeding points of the antenna elements included in the group of antenna elements. By switching of the switch elements, the group of antenna elements is converted into an antenna for MIMO communication to transmit and receive a plurality of signals in parallel, or into a directional array antenna to control the directivity towards the direction at which the signals arrive.

Description

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Claims

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Application Information

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Owner NEC CORP
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