Abstract: The invention relates to anti-multipactor coating deposited onto a substrate that can be exposed to the air and its procedure of obtainment by simple chemical methods. Furthermore, the present invention relates to its use for the fabrication of high power devices working at high frequencies.

Abstract: The invention relates to anti-multipactor coating deposited onto a substrate that can be exposed to the air and its procedure of obtainment by simple chemical methods. Furthermore, the present invention relates to its use for the fabrication of high power devices working at high frequencies.

Abstract: The invention relates to a coaxial connector with a female and a male connector part. The two connector parts each have an inner ventilation channel which extends in the longitudinal direction of the connector and which opens out into at least one outwardly extending, stepped (when viewed in the longitudinal section) ventilation channel.

Abstract: The invention concerns a waveguide filter (200NP) for microwaves, characterized in that it has, at least on part of its length, a cross-section having two mutually non-parallel opposite sides (111, 111?), for example trapezoid. The use of such a shape enables the power threshold for forming self-maintained electron avalanche discharges to substantially increased and satisfactory filtering properties to be obtained. The invention also concerns the use of such a filter in a high-power microwave transmitter operating in X and Ka bands, in particular for space applications.

Abstract: The invention relates to a coaxial connector with a female and a male connector part. The two connector parts each have an inner ventilation channel which extends in the longitudinal direction of the connector and which opens out into at least one outwardly extending, stepped (when viewed in the longitudinal section) ventilation channel.

Abstract: The invention concerns a waveguide filter (200NP) for microwaves, characterized in that it has, at least on part of its length, a cross-section having two mutually non-parallel opposite sides (111, 111?), for example trapezoid. The use of such a shape enables the power threshold for forming self-maintained electron avalanche discharges to substantially increased and satisfactory filtering properties to be obtained. The invention also concerns the use of such a filter in a high-power microwave transmitter operating in X and Ka bands, in particular for space applications.

Abstract: A method of reducing multipactor effect occurrence on surfaces in a high energy field, e.g., RF devices, is provided and RF devices having a configuration produced by the method are provided. The method includes forming wall structures formed of a metallic wall material and defining a channel through which the RF energy travels, the wall material having a wall material surface. A porous layer is disposed over the wall material surface and has a porous layer upper surface opposite a porous layer lower surface facing the wall material surface. The porous layer defines pores with openings distributed in the porous layer upper surface. A conductive layer is disposed over the porous layer upper surface.

Abstract: A method of reducing multipactor effect occurrence on surfaces in a high energy field, e.g., RF devices, is provided and RF devices having a configuration produced by the method are provided. The method includes forming wall structures formed of a metallic wall material and defining a channel through which the RF energy travels, the wall material having a wall material surface. A porous layer is disposed over the wall material surface and has a porous layer upper surface opposite a porous layer lower surface facing the wall material surface. The porous layer defines pores with openings distributed in the porous layer upper surface. A conductive layer is disposed over the porous layer upper surface.