밀리미터파 대역에서 저가격화 시스템을 위한 Self Oscillating Double Conversion Mixer

The MMIC (Microwave Monolithic Integrated Circuit) self oscillating double conversion mixer was designed and fabricated for the V-band transmitter applications. The MMIC self oscillating double conversion mixer which dose not need external local oscillator was designed using GaAs PHEMT technology. The first self oscillating mixer use PHEMT technology. The first self oscillating mixer use PHEMT for fLO signal generation and fIF signal is applied at gate port and fRF1 signal is generated at a drain port of first stage. The second gate mixer use PHEMT for fLO signal and fRF1 signal is applied at gate port and fRF2 signal is output at a drain port of second stage.