| 摘要 |
The objective of the present invention is to provide a technique which makes it possible for the directionality pattern of an antenna device to be switched instantaneously with an arbitrarily defined timing. The antenna device according to the present invention is provided, as a basic configuration, with: a plurality of antenna elements; a plurality of RF modules; and a control circuit which acquires a parameter pattern for implementing a certain antenna directionality, from a table including a plurality of parameter patterns for implementing a plurality of types of antenna directionality, and which multiplies transmission and reception data by the parameter pattern in the form of weighting factors. Furthermore, for situations in which at least one abnormality is detected in the plurality of RF modules, and situations in which a change in the parameter pattern is instructed from the outside with an arbitrarily defined timing, the control circuit acts in such a way as to acquire, from the table, a new parameter pattern to replace the parameter pattern currently being used, and apply the new parameter pattern to the plurality of RF modules (see figure 1). |
