Abstract: A device and a method for utilizing the device for radio-frequency (RF) power coupling, particularly a power combiner and/or divider, includes a box shaped casing forming the outside conductor, and connectors for inputting and outputting RF-power, which are electrically connected to at least one center conductor, where the electrical connection between the connectors and the at least one center conductor is a direct electrical and mechanical connection.

Abstract: An arrangement and method for radio-frequency (RF) high power generation which compensate for a failed power amplifier module includes at least one power combiner having RF inputs and at least one RF output, and at least two power amplifier modules electrically connected to a respective input by at least one transmission line, and at least one RF switch formed by the at least one transmission line with a complex load electrically connected to the at least one RF switch.

Abstract: A method and arrangement for RF high power generation includes a power combiner having RF inputs and an RF output, and at least two power amplifier modules, respectively electrically connected by a transmission line to an input of the power combiner, wherein a directional coupler is electrically connected to the RF output of the power combiner and every transmission line includes an RF switch, where the Method includes measuring and determining values of the power amplifier modules, storing the values and applying the values as a correction to the input signal of the power amplifier modules.

Abstract: An RF power combiner functioning as a higher-order harmonics filter comprises: at least one pair of coaxially arranged disc-shaped metal conductors, at least one of the conductors having a central axial opening to accommodate a waveguide is provided. Facing surfaces of the disk-shaped metal conductors are shaped symmetrically with respect to the plane of symmetry of the disk-shaped metal conductors to form a plurality of consecutive, radially communicating concentric cavities having isosceles trapezoids with different bases in section. The smaller base of each trapezoid disposed closer to the central axis. The number of the concentric cavities is (2 k+1), where K is the number of signal harmonics being filtered.

Abstract: A method and an assembly for radio-frequency (RF) power coupling in a rack includes at least one box shaped power combiner and/or divider, connectors for inputting and outputting RF-power, conductors arranged inside the at least one box shaped power combiner and/or divider, electrically connecting the connectors with at least one center conductor, and at least one outside conductor formed as a box shaped casing.

Abstract: A gas turbine blade including a root and an air foil with a leading edge and a trailing edge, a cooling air channel system extending from a cooling air opening in the root via a winding serpentine channel to a trailing edge channel at the trailing edge including an air outlet at the trailing edge is provided. For efficiently cooling the trailing edge of the blade it is proposed that the cooling air channel system includes an air bypass channel connecting the cooling air opening in the root with the trailing edge channel bypassing the serpentine channel.

Abstract: A gas turbine blade including a root, an airfoil with a leading edge and a trailing edge, a radial outer tip, and a pressure side and a suction side between the leading edge and the trailing edge, and a cooling air channel system extending from an air inlet opening in the root throughout the airfoil to a plurality of air outlets at the pressure side and the leading edge of the top of the tip of the airfoil.