Analysis of on-chip digital noise coupling path for wireless communication IC test chip

Satoshi Tanaka, Peng Fan, Jingyan Ma, Hanae Aoki, Masahiro Yamaguchi, Makoto Nagata, Sho Muroga

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

1 Citation (Scopus)

Abstract

In-band spurious tones of a LTE-class radio frequency integrated circuit (RFIC) receiver test element group (TEG) chip was studied in order to evaluate the degree of noise suppression by means of soft magnetic thin film. A 2-μm-thick crossed anisotropy multilayered Co-Zr-Nb film was applied onto the passivation layer of TEG chip. The in-band spurious was suppressed by 10 dB while it had no influence upon wanted signal. A magnetic near field map measured in the 2.1 GHz range indicated several noise coupling paths on chip, which were compared with the chip layout design to estimate victim wires. EM simulation model in connection with circuit simulation is carefully constructed. RF control wirings were most responsible wires than other wires and air couplings. EM simulation predicted the magnetic film should suppress noise by the maximum of 33 dB while it was 10 dB experimentally because of Si substrate coupling and board coupling.

Original languageEnglish
Title of host publicationEMC Compo 2015 - 2015 10th International Workshop on the Electromagnetic Compatibility of Integrated Circuits
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages216-221
Number of pages6
ISBN (Electronic)9781467378963
DOIs
Publication statusPublished - 2015 Dec 15
Event10th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMC Compo 2015 - Edinburgh, United Kingdom
Duration: 2015 Nov 102015 Nov 13

Publication series

NameEMC Compo 2015 - 2015 10th International Workshop on the Electromagnetic Compatibility of Integrated Circuits

Other

Other10th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMC Compo 2015
Country/TerritoryUnited Kingdom
CityEdinburgh
Period15/11/1015/11/13

Keywords

  • RF IC
  • conduction noise
  • digital noise
  • magnetic thin film
  • noise suppressor
  • wireless communication

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Radiation

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