In-band spurious attenuation in LTE-class RFIC chip using a soft magnetic thin film

Sho Muroga, Y. Shimada, Y. Endo, Satoshi Tanaka, M. Yamaguchi, N. Azuma, M. Nagata, M. Murakami, K. Hori, S. Takahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

A long term evolution (LTE)-class CMOS radio frequency integrated circuit (RFIC) receiver test element group (TEG) chip is developed in our project for the next generation cell phone handsets in order to clarify the on-chip-level noise coupling and demonstrate the noise attenuation using the soft magnetic thin film as an on-chip electromagnetic noise suppressor. The TEG chip equips a noise generator and a RF receiver block. The RF block amplifies and demodulates transmitted signals to IQ signals. A Co85Zr3Nb 12 soft magnetic thin film is integrated onto the TEG chip as a noise suppressor. In this report, the noise generator is driven by a clock signal of 124.803 MHz and generates 17th harmonics of 2,165 MHz conflicts with the LTE band 1 (2,110 - 2,170 MHz). As a result, the in-band digital noise was suppressed 5-20 dB by the Co-Zr-Nb thin film as an integrated noise suppressor.

Original languageEnglish
Title of host publicationEMC COMPO 2013 Proceedings - 9th International Workshop on Electromagnetic Compatibility of Integrated Circuits
PublisherIEEE Computer Society
Pages47-52
Number of pages6
ISBN (Print)9781479923151
DOIs
Publication statusPublished - 2013 Jan 1
Event9th International Workshop on Electromagnetic Compatibility of Integrated Circuits, EMC COMPO 2013 - Nara, Japan
Duration: 2013 Dec 152013 Dec 18

Publication series

NameEMC COMPO 2013 Proceedings - 9th International Workshop on Electromagnetic Compatibility of Integrated Circuits

Other

Other9th International Workshop on Electromagnetic Compatibility of Integrated Circuits, EMC COMPO 2013
CountryJapan
CityNara
Period13/12/1513/12/18

Keywords

  • inductive coupling
  • magnetic thin film
  • on-chip noise suppressor
  • spurious noise
  • wireless communication

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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