Abstract
This paper presents a broadband linearization technique for CMOS Gilbert-based mixer in zero IF receivers. In the proposed mixer the second order distortion is reduced by using feedback technique in the RF transconductance stage. Creating a negative feedback loop is better suited for achieving broadband IIP2 improvement compared to other technique. Moreover, the added circuit increases the conversion gain of the mixer. Simulation results, using 0.13 μm CMOS TSMC model, show that the proposed technique improves IIP2 of more than 20 dB in the 900 MHz–6 GHz RF input frequency rang for 100 MHz output bandwidth in comparison with the conventional mixer. So this technique is suitable for multi-band DCR application. The total power consumption is 3.3 mW and the excess power consumption due to additional circuits used to implement cancellation mechanism is less than 1 mW.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Razavi, B. (1997). Design considerations for direct-conversion receivers. IEEE Transactions on Circuits and Systems II, 44(6), 428–435.
Jusung, K., & Silva-Martinez, K. (2013). Low-power, low-cost CMOS direct-conversion receiver front-end for multistandard applications. IEEE Journal of Solid-State Circuits, 48(9), 2090–2103.
Terrovitis, M., & Meyer, R. G. (2000). Intermodulation distortion in current-commutating CMOS mixers. IEEE Journal of Solid-State Circuits, 35(10), 1461–1473.
Manstretta, D., Brandolini, M., & Svelto, F. (2003). Second-order intermodulation mechanisms in CMOS down-converters. IEEE Journal of Solid-State Circuits, 38(3), 394–406.
Vahidfar, M. B., & Shoaei, O. (2008). A high IIP2 mixer enhanced by a new calibration technique for zero-IF receivers. Transactions on Circuits and Systems Part II—Express Briefs, 55(3), 219–223.
Parvizi, M., & Nabavi, A. (2010). Low-power highly linear UWB CMOS mixer with simultaneous second- and third-order distortion cancellation. Microelectron Journal, 41(10), 1–8.
Mollaalipour, M., & Miar-Naimi, H. (2013). An improved high linearity active CMOS mixer: Design and Volterra series analysis. IEEE Transactions on Circuits and Systems I, 60(8), 2092–2103.
Asghari, M., & Yavari, M. (2014). Second-order intermodulation cancelation and conversion-gain enhancement techniques for CMOS active mixers. International Journal of Circuit Theory and Applications, 60(8), 2092–2103.
Corduneanu, C., & Sandberg, I. (2000). Volterra equations and applications (1st ed.). Amsterdam: OPA.
Razavi, B. (2011). RF microelectronics. Upper Saddle River: Prentice Hall.
Tyagi, A. K., & Rajakumar, R. V. (2011). A wideband rf frontend architecture for software defined radio. Circuits Systems and Signal Processing, 30, 689–704.
Darabi, H., Kim, H. J., Chiu, J., Ibrahim, B., & Serano, L. (2006). An IP2 improvement technique for zero-if down-converters. In Proceedings of IEEE international solid-state circuits conference (pp. 464–465).
Vidojkovic, V., Van Der Tang, J., Leeuwenburgh, A., & Van Roermund, A. H. (2005). A low-voltage folded switching mixer in 0.18um CMOS. IEEE Journal of Solid-State Circuits, 40, 1259–1264.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Mollaalipour, M. Second harmonic rejection based on feedback technique in CMOS mixer for multi-band DCR application. Analog Integr Circ Sig Process 85, 353–359 (2015). https://doi.org/10.1007/s10470-015-0620-1
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10470-015-0620-1