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Time-variant analysis and design of a power efficient ISM-band quadrature receiver

Author

Summary, in English

In this work a 2.2 GHz quadrature receiver front-end suitable for low-power applications is presented. The low-noise amplifier, the mixer and the voltage-controlled oscillator are merged into a single stage, making the circuit capable of extreme current reuse while keeping it still functional at low supply voltage. A careful linear time-variant analysis is proven to be necessary to accurately predict the conversion gain and the bandwidth of the downconverter. A prototype, implemented in a 90 nm CMOS technology, validates the theoretical analysis, showing 27 dB of downconversion gain over a 14 MHz base-band bandwidth; the noise figure is 13 dB with a flicker corner frequency of 200 kHz; the input-referred 1 dB compression point is -23.7 dBm. The circuit draws only 1.3 mA from a 1.0 V supply.

Publishing year

2011

Language

English

Pages

11-20

Publication/Series

Analog Integrated Circuits and Signal Processing

Volume

67

Issue

1

Document type

Journal article

Publisher

Springer

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • RF receiver
  • Low power
  • Low voltage
  • Current reuse
  • Wireless sensor
  • network

Status

Published

Research group

  • Data converters & RF

ISBN/ISSN/Other

  • ISSN: 0925-1030