Design Of A Ku-Band Hemt Gaas Single-Ended Resistive Mixer

Based on a low noise GaAs HEMT, a Ku-Band single-ended resistive mixer is designed for a Ku-Band system with 14 GHz RF frequency and 2 GHz-3 GHz IF frequency. The simulation results show that the mixer has low distortions and good flatness. The mixer is fabricated on a TLY-5 circuit board. The measurement results show that, when the IF frequency varies from 2 GHz to 3 GHz, the conversion loss ranges from 8 dB to 9.3 dB and the gain flatness is within 1.3 dB. The output power 1 dB compression point is 12 dBm and the output spurious rejection is better than 30 dBc.