Abstract
In the present paper, a linearization technique is proposed for double-balanced active inductor-less mixer based on the interaction of two nonlinear approaches. The proposed procedure utilizes multiple-gate and second harmonic injection techniques in order to simultaneously enhance the third-order intercept point (IIP3) and second-order intercept point (IIP2). The full Volterra series analysis of transconductance stage of the proposed mixer is presented to demonstrate the effective technique in detail. Simulations are performed utilizing a TSMC $$0.18\, \upmu \hbox {m}$$ CMOS technology. Compared with the conventional Gilbert cell mixer, the simulations suggest improvements of 18.6 dBm and 54 dBm in IIP3 and IIP2 of the proposed mixer, respectively. The mixer has a conversion gain of 20.3 dB while 3.21 mA is drawn from a 1.8 V power supply.
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