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2012 (Vol. 4, Issue: 05)
Article Information:

Analysis and Evaluation of Using a Tuning Inductance on the Performance of Gilbert Cell-Based CMOS Sub-Harmonic Mixer

Alireza Saberkari, Shahriar B. Shokouhi, Eduard Alarcón and Gholamreza Baghersalimi
Corresponding Author:  Alireza Saberkari 

Key words:  Conversion gain, noise figure, sub-harmonic mixer, tuning inductance, , ,
Vol. 4 , (05): 486-490
Submitted Accepted Published
2011 October, 23 2011 November, 15 2012 March, 01
Abstract:

The effect of using a tuning inductance on the performance of a Gilbert cell-based two level transistor CMOS sub-harmonic mixer is investigated. The tuning inductor used between the RF and LO switching stages causes conversion gain enhancement and noise figure improvement. Additionally, it compensates LO distortion due to the phase mismatch of LO signals in the sub-harmonic mixer. The design procedure is done in 0.18 :m CMOS process at 1.8 V supply voltage and 2.4 GHz frequency and reveals that the mixer has exhibited high performance after a FOM-based comparison, without increase the power consumption of 5 mW. The inductive connection between the RF and LO stages causes 7 dB enhancement of conversion gain and 7.3 and 6 dB improvement of noise figure and LO distortion, respectively while the mixer has achieved up to 8 dB conversion gain, 0.5 dBm IIP3, and 13.8 dB noise figure.
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  Cite this Reference:
Alireza Saberkari, Shahriar B. Shokouhi, Eduard Alarcón and Gholamreza Baghersalimi, 2012. Analysis and Evaluation of Using a Tuning Inductance on the Performance of Gilbert Cell-Based CMOS Sub-Harmonic Mixer.  Research Journal of Applied Sciences, Engineering and Technology, 4(05): 486-490.
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