论文部分内容阅读
A current bleeding CMOS mixer with complementary transconductance stage is presented in this paper.The conversion gain of the mixer is increased and the flick noise of the mixer is reduced by inserting the PMOS to form current bleeding circuit in Gilbert mixer.The circuit is designed through SMIC 0.18um CMOS process,the LO frequency is 1.571GHz,RF frequency is 1.575GHz,simulation results show the conversion gain of the mixer is 18.5 dB,SSB NF is about 9.59dB,and third-order input intercept point(IIP3) is-4.6dBm.The mixer consumes 7.8 mA at 1.8 V power supply and the size of the whole layout is 0.73mm×0.68 mm.
A current bleeding CMOS mixer with complementary transconductance stage is presented in this paper. Conversion gain of the mixer is increased and the flick noise of the mixer is reduced by inserting the PMOS to form current bleeding circuit in Gilbert mixer. The circuit is designed through The SMIC 0.18um CMOS process, the LO frequency is 1.571GHz, the RF frequency is 1.575GHz, the simulation results show that the conversion gain of the mixer is 18.5 dB, the SSB NF is about 9.59dB, and the third-order input intercept point (IIP3) is -4.6 dBm. The mixer consumes 7.8 mA at 1.8 V power supply and the size of the whole layout is 0.73 mm × 0.68 mm.