Patent ID: 8957816
Filing Date: 2015-02-17
Classification: B64C,B64D,H01Q

Abstract:
1. A communication device for providing communication between a movable piece of equipment of a rotor rotatable about an axis of rotation (AX), and a stationary piece of equipment placed on a carrier structure for said rotor, said communication device being fitted with a set of controlling swashplates including a rotary swashplate and a non-rotary swashplate for pitch control of blades of said rotor, said communication device comprising a movable transfer unit and a stationary transfer unit that exchange information respectively with the movable equipment and with the stationary equipment, wherein each transfer unit is connected to a respective transmit-and-receive antenna, including a movable antenna connected to the movable transfer unit and fastened to the rotary swashplate and a stationary antenna connected to the stationary transfer unit and fastened to the non-rotary swashplate, the movable antenna and the stationary antenna being suitable for communicating with each other wirelessly, the communication device including firstly a rotary ring secured to the rotary swashplate and carrying the movable antenna and secondly a non-rotary ring secured to the non-rotary swashplate and carrying the stationary antenna facing the movable antenna, at least one of the swashplates presenting a groove receiving an antenna.