A New Inductor-Less IP2 Enhancement Technique for CMOS Multi-Standard Mixer(<Special Section>Analog Circuits and Related SoC Integration Technologies)

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概要

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• The linearity and noise required by GSM and UMTS receivers make the design of a CMOS mixer for these applications so challenging. A new technique for IP2 improvement in Zero-IF active mixers is presented in this paper. This inductor-less technique is based on canceling the parasitic capacitor of common source node of the switching transistors and synthesizing resistive impedance. Using this technique, a reconfigurable down converter mixer works from 900MHz to 2.4GHz is designed supporting GSM, DCS, PCS, UMTS and IEEE802.11b-g standards. The mixer IIP2 is higher than 71dBm in GSM and UMTS bands. The mixer conversion gain is higher that 12dB in all frequency bands. The design is done in 65nm CMOS technology and consumes 10mA from a 1.2V supply. The design meets the performance required for all mentioned standards, while its area and power is comparable with high performance single band mixers.

• 社団法人電子情報通信学会の論文
• 2007-06-01

著者

• Shoaei Omid

  Nanoelectronic Center Of Excellent Ic Design Center University Of Tehran

• VAHIDFAR Mohammad

  Nanoelectronic Center of Excellent, IC Design Center, University of Tehran

• Vahidfar Mohammad

  Nanoelectronic Center Of Excellent Ic Design Center University Of Tehran

関連論文

• An IIP2 Calibration Technique for Zero-IF Multi Band down Converter Mixer
• A New Inductor-Less IP2 Enhancement Technique for CMOS Multi-Standard Mixer(Analog Circuits and Related SoC Integration Technologies)

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