| 摘要 |
PROBLEM TO BE SOLVED: To control the transmission direction of a signal by a simple configuration.SOLUTION: A transmitter has a plurality of antenna elements and transmits a signal in the pointing direction. Digital signals corresponding to transmission signals supplied toward the plurality of antenna elements, respectively, are delayed by a time depending on the corresponding antenna element and pointing direction. Each digital signal thus delayed is then converted into an analog signal, and outputted from a corresponding antenna element. |
