Narrowband transition from WR15 to 31.75 mm HE11 corrugated waveguide for 54 to 64 GHz
Narrowband transition from WR10 to 31.75 mm corrugated waveguide for 92 to 96 GHz
Narrowband transitions have close to 99.9% HE11 mode purity.
Broadband transition from WR8 to 63.5 mm corrugated waveguide for 100 to 180 GHz.
Broadband transitions have approximately 90% efficiency.