Design of a Noise-Canceling CMOS Wideband Receiver Front-End with Inherent Active Balun
In: Circuits, Systems, and Signal Processing, Jg. 30 (2011-05-06), S. 741-753
Online
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Zugriff:
This paper presents the design of an ESD-protected noise-canceling CMOS wideband receiver front-end for cognitive and ultra-wideband (UWB) radio-based wireless communications. Designed in a 0.13-μm CMOS technology, the RF front-end integrates a broadband low-noise amplifier (LNA) and a quadrature down-conversion mixer. While having ESD and package parasitics absorbed into a wideband input matching network, the LNA exploits a combination of a common-gate (CG) stage and a common-source (CS) stage to cancel the noise of the CG-stage and to provide a well balanced differential output for driving the double-balance mixer, which has a merged quadrature topology. A variable-gain method is developed for the LNA to achieve a large factor of gain switch without degrading the input impedance match and the balun function. Drawing 24 mA from 1.5 V, simulations show that the proposed front-end has a 3-dB bandwidth of around 10 GHz spanning from 1.8 GHz up to 11.8 GHz with a maximum voltage conversion gain of 30 dB and a noise figure of 4.3–6.7 dB over the entire band.
Titel: |
Design of a Noise-Canceling CMOS Wideband Receiver Front-End with Inherent Active Balun
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Autor/in / Beteiligte Person: | Michael Yan Wah Chia ; Shi, Bo |
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Zeitschrift: | Circuits, Systems, and Signal Processing, Jg. 30 (2011-05-06), S. 741-753 |
Veröffentlichung: | Springer Science and Business Media LLC, 2011 |
Medientyp: | unknown |
ISSN: | 1531-5878 (print) ; 0278-081X (print) |
DOI: | 10.1007/s00034-011-9303-z |
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