A 2.4-GHz highly linear derivative superposition Gilbert cell mixer

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Turkish Journal of Electrical Engineering and Computer Science
Volume:24 Issue:2
A 2.4-GHz highly linear derivative superposition Gilbert cell mixer

A 2.4-GHz highly linear derivative superposition Gilbert cell mixer

Authors : SAMANEH SEDIGHI, Omid HASHEMIPOUR, Massoud DOUSTI

Pages : 571-579

View : 13 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :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.
Keywords : CMOS, common source mixer, highly linear, derivative superposition technique, transconductance stage

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