First demonstration of broadband W-band and D-band GaN MMICs for next generation communication systems

High-performing GaN MMICs that can cover broadband applications at W and D-Band have been fabricated and tested. A five stage 60-105 GHz LNA has >23 dB of gain across the band and a six stage D-Band LNA has 25 dB of gain from 110-170 GHz. A double balanced resistive FET mixer has -11 to -15 dB of conversion loss from 74-94 GHz. To our knowledge, these are the first reported GaN MMICs with high broadband gain at these frequencies.