ARRIVAL ANGLE ESTIMATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION SYSTEM

摘要

An arrival angle estimation system used, a communication device and a communication system are provided to be configured at a low cost in a condition where sufficient network lines are provided at a short distance. An arrival angle estimation system used in a wireless communication device comprises a transmitting device and a receiving device and estimates the arrival angle when a frame transmitted from a transmitting device arrives at a receiving device wirelessly. The transmitting device comprises two directional antennas of which directivity is inclined at an angle of Œtheta with the front plane of the transmission device, and the receiving unit includes a directional antenna having directivity toward the front plane of the receiving device.