Adaptive antenna apparatus for selecting adaptive control...

Details Adaptive antenna apparatus for selecting adaptive control... Adaptive antenna apparatus for selecting adaptive control...

2008-01-29

2008-01-29

Phan, Dao (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

C342S374000, C342S383000

Reexamination Certificate

active

07324047

ABSTRACT:
An adaptive antenna apparatus includes two antenna elements and a parasitic element to which a variable reactance element is connected, and selects an adaptive control process according to detected signal quality. A controller executes a first adaptive control process for adaptively controlling respective signals received by the respective antenna elements and outputting the respective signals after the adaptive control as a combined received signal, and executes a second adaptive control process for reactance controlling an element value of the variable reactance element. The controller executes the first adaptive control process. The controller executes a communication process when the detected signal quality is equal to or larger than a predetermined threshold. The controller executes the second adaptive control process when the detected signal quality is not equal to or larger than the threshold.

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