A 10 GHz-band wave hose for high-quality intra-vehicle communication and power-transfer systems

To realize automatic operation of vehicles, it is necessary to install various sensors, e.g., high-quality intra-vehicle cameras. However, currently, conventional harnesses cannot tolerate external noise. Therefore, in this paper, we propose wave hose as a new type of transmission path. We developed a system to transmit microwave power for sensor power supply using a wave hose and simultaneously verified highspeed communication between sensors. We confirmed 1 W of power and an in-pipe transmission of 100 Mbps/ch in this system. We also confirmed that the error vector magnitude (EVM) was less than 5% even in a system with a maximum length of 90 m.