An Output Coupler for a W-Band High Power Wideband Gyroamplifier

作者：McElhinney Paul^*; Donaldson Craig R; Mckay Johannes E; Zhang Liang; Robertson Duncan A; Hunter Robert I; Smith Graham M; He Wenlong; Cross Adrian W

来源：IEEE Transactions on Electron Devices, 2017, 64(4): 1763-1766.

DOI：10.1109/TED.2017.2660304

• Corrugated horn
• Gaussian coupling
• microwave window

An output coupler for a W-band high power wideband gyroamplifier has been designed, manufactured, and experimentally measured. It consists of a high performance sin(2)-parallel corrugated horn integrated with a broadband multilayer The major design requirements are that the horn/window combination must have an input return loss lower than -30 dB over a 10-GHz bandwidth, provide a high quality output beam pattern, and operate under ultrahigh-vacuum conditions. The coupler converts a circular waveguide TE11 mode into the free space Laguerre Gaussian LG(00) mode over the frequency band of 90-100 GHz with a measured return loss of between -30 and -40 dB and a simulated Gaussian coupling efficiency of over 99% at 94 GHz.

• 出版日期2017-4