Gas-tight waveguide coupling, high-frequency module, filling level radar, and use

摘要

The invention relates to a gas-tight waveguide coupling for coupling an electromagnetic transmitted signal from a high-frequency module into a waveguide, wherein the waveguide coupling has a planar emitter element, which is arranged on a circuit board and is used to emit the transmitted signal. The waveguide coupling also has a dielectric sealing element, which seals the waveguide in a gas-tight manner. In this way, explosion protection can be provided.