Loop antenna array group

To provide a loop antenna array capable of forming a boundary of the linear and clear communication area. A loop antenna array comprises two loop antennas 1 and 2. The loop antenna 1, current flows in the reverse direction to each other. In other words, as seen in the direction passing through the respective loop antennas 1 and 2, an AC power supply in the timing signal terminal positive voltage E, current flows clockwise in the loop antenna 1, the loop antenna 2 counter-clockwise current It flows. Conversely, at the timing of the signal terminal minus the voltage of the AC power source E, counterclockwise current flows through the loop antenna 1, it flows clockwise current in the loop antenna 2. .FIELD 1