SAR investigation of array antennas for mobile handsets

Qiang Chen, Yasunori Komukai, Kunio Sawaya

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The peak SAR values of two-element array antennas for mobile handsets in the vicinity of a spherical phantom of a human head are evaluated numerically as a function of the distance between the array antenna and the head phantom when the two elements of a two-element array antenna are either co-phase voltage-fed or reverse-phase voltage-fed. It is found that relation between the worst case of the SAR and the phase difference of array elements strongly depends on the distance. When part of the head phantom is located in the reactive near-field region of the array antenna, although the co-phase feed SAR value is slightly smaller than the reverse-phase feed SAR value, the SAR value is practically independent of the phase difference, but when the head is completely outside the reactive near-field region, the co-phase feed SAR value is larger than the reverse-phase feed SAR value.

Original languageEnglish
Pages (from-to)1354-1356
Number of pages3
JournalIEICE Transactions on Communications
VolumeE90-B
Issue number6
DOIs
Publication statusPublished - 2007 Jun

Keywords

  • Antennas
  • Arrays
  • Biological effects of electromagnetic radiation
  • Mobile antennas
  • Mobile communication
  • SAR

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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