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A Cellular Receiver Front-End with Blocker Sensing

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Author

Summary, in English

A receiver front-end supporting contiguous and non-contiguous intra-band carrier aggregation scenarios with a fully integrated spectrum sensor that can detect both in-gap and out-of-band blockers has been implemented in 65nm CMOS technology. An NF of 2.5dB is achieved using a noise canceling LNTA, and linearized OTAs are used to achieve an IIP3 improvement of up to 6.5dB in-band and 11dB at the filter band edge. The spectrum sensor can detect blocker levels in 22 steps of 9MHz between -100MHz and 100MHz IF. The system consumes between 36.6mA and 57.6mA from a 1.2V supply.

Publishing year

2016

Language

English

Publication/Series

IEEE Radio Frequency Integrated Circuits Symposium (RFIC), 2016

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Operational amplifier
  • linearization techniques
  • noise cancellation
  • receiver
  • active filter
  • carrier aggregation

Conference name

IEEE Radio Frequency Integrated Circuits Symposium (RFIC), 2016

Conference date

2016-05-22

Conference place

San Francisco, CA, United States

Status

Published

Project

  • EIT_DARE Digitally-Assisted Radio Evolution

Research group

  • Analog RF

ISBN/ISSN/Other

  • ISBN: 978-1-4673-8651-7