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TY - UNPB AU - Möller, W.-D. ED - Zhao, Ning ED - Poole, John ED - Schaa, Volker RW TI - High RF Power Couplers for New High Luminosity Colliders J2 - Proc. of eeFACT2016, Daresbury, UK, October 24-27, 2016 C1 - Daresbury, UK T2 - ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e^+e^- Colliders T3 - 58 LA - english AB - Future high luminosity colliders ask for high beam power. The main task of the RF power coupler is to transfer the RF power from the generator to the cavity and to the beam. It also provides the matching between the RF generator and the cavity / beam system. Other tasks are the vacuum barrier for the beam vacuum and the connection between the low temperature of the superconducting cavity and the room temperature environment. In this talk we will discuss the requirements of power couplers for future colliders. We compare possible design approaches in respect to RF and non RF related functions and address problems of material and fabrication technologies. Many power couplers for different power levels and cavity designs are designed, fabricated and in operation worldwide. Some of the existing power coupler designs and developments will be shown and discussed. PB - JACoW CP - Geneva, Switzerland ER -