Radar-operated fill level measuring device

A fill level measuring device for determining a fill level of a fill substance in a container, comprising:

• a housing;
• a transmitting/receiving unit arranged in the housing and designed to produce transmitted radar signals and, based on corresponding received signals, to determine the fill level;
• an antenna for transmitting transmitted radar signals to the fill substance and/or for receiving received signals after reflection on a surface of the fill substance;
• a measuring device neck arranged between the antenna and the housing;
• a hollow conductor via which signals are led between the transmitting/receiving unit and the antenna, wherein the hollow conductor is disposed within the measuring device neck and extends in the measuring device neck;
• and
• a thermal coupling element disposed within the measuring device neck and embodied to couple the hollow conductor mechanically and thermally with the measuring device neck, wherein the thermal coupling element is monolithic having:
• a first end extending radially from the hollow conductor to the measuring device neck;
• a second end extending radially from the hollow conductor to the measuring device neck;
• and a mid-section between the first end and the second end having a radius not extending to the measuring device neck thereby providing an insulating space between the first end, the second end, and the measuring device neck.