WR8 Curved Waveguide E Bend 90-140GHz 25,4mm WR8 kromme waveguide E béien 90-140GHz 25,4mm WR10 Verlängerung waveguide béien 1,67 Zoll WR12 kromme waveguide H béien 60-90 GHz 25,4mm WR10 Verlängerung waveguide béien 1,24 Zoll