Vitee, Nandini and Ramiah, Harikrishnan and Mak, Puk In and Yin, Jun and Martins, Rui Paulo (2020) A 1-V 4-mW Differential-Folded Mixer with Common-Gate Transconductor Using Multiple Feedback Achieving 18.4-dB Conversion Gain, +12.5-dBm IIP3, and 8.5-dB NF. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 28 (5). pp. 1164-1174. ISSN 1063-8210, DOI https://doi.org/10.1109/TVLSI.2020.2969679.
Full text not available from this repository.Abstract
This article reports a novel differential-folded mixer with multiple-feedback techniques for performance enhancement. Specifically, we introduce the capacitor cross-coupled (CCC) common-gate (CG) transconductance stage to improve the noise figure (NF) at low power by boosting the effective transconductance, while enhancing the linearity via suppressing the second-order harmonic distortion. Typically, the created loop gain of the CCC can raise the third-order intermodulation (IM3) distortion, penalizing the input-referred third-order intercept point (IIP3). Here, we propose a positive and a second capacitive feedback into the CCC CG transconductor, not only to suppress the IM3 distortion current but also adds in design flexibility to the input transistors. Furthermore, the positive feedback also improves the input impedance matching, conversion gain, and NF through a flexible design criterion. Prototyped in a 0.13- μm process, the proposed mixer operating at 900 MHz dissipates 4 mW at 1 V. The measured double sideband (DSB) NF is 8.5 dB, the conversion gain ( GC ) is 18.4 dB and the IIP3 is +12.5 dBm. © 1993-2012 IEEE.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Capacitive feedback; CMOS; high linearity; mixer; positive feedback; third-order intercept point (IIP3); third-order intermodulation (IM3) cancellation |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 10 Jun 2020 08:43 |
| Last Modified: | 10 Jun 2020 08:43 |
| URI: | http://eprints.um.edu.my/id/eprint/24776 |
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