Patent ID: 7324047
Filing Date: 2008-01-29
Classification: H01Q,H04B

Abstract:
1. An adaptive antenna apparatus comprising: a plurality of antenna elements; a variable reactance element; at least one parasitic element connected to the variable reactance element; an adaptive controller for executing a first adaptive control process for adaptively controlling respective received signals received by the plurality of antenna elements, and outputting the respective received signals, after the first adaptive control process, as a combined received signal; a reactance controller for executing a second adaptive control process for reactance controlling an element value of the variable reactance element; a signal quality detector for detecting signal quality of the combined received signal; and an apparatus controller for executing one of the first and second adaptive control processes executing a predetermined communication process when a detected signal quality is equal to or larger than a predetermined threshold, and executing the other of the first and second adaptive control processes when the detected signal quality is not equal to or larger than the threshold.