This paper presents a new derivative superposition Gilbert cell to minimize the third-order nonlinear current term of transconductance transistors. To decrease the parasitic capacitance effect on gain, noise figure, and linearity of the circuit, extra inductors and capacitors are added between the switching and transconductance stages. The proposed mixer is simulated in 0.18-$\mu $m RF-CMOS technology with a 1.8-V supply. The results show an improvement of about 23 dBm in IIP3 compared to conventional mixers. The power consumption of this circuit is about 3.96 mW.
CMOS, common source mixer, highly linear, derivative superposition technique, transconductance stage
SEDIGHI, SAMANEH; HASHEMIPOUR, OMID; and DOUSTI, MASSOUD
"A 2.4-GHz highly linear derivative superposition Gilbert cell mixer,"
Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 24:
2, Article 17.
Available at: https://journals.tubitak.gov.tr/elektrik/vol24/iss2/17