Measurement of radiation efficiency of antennas in the vicinity of human head model proposed by COST 244

Qiang Chen, Hiroki Yoshioka, Kazuhisa Igari, Kunio Sawaya

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

2 Citations (Scopus)

Abstract

In the design of antennas for portable telephones, it is important to evaluate the radiation efficiency of the antennas in the vicinity of the human body, since the radiation efficiency could decrease due to power absorption by the human body. However, if different antennas are designed by different people, and different human models are used in their evaluations, their results cannot be compared each other directly to determine which antenna has a highest radiation efficiency. Therefore, it is required to develop some canonical problems that may be utilized for comparing the numerical and experimental results of the characteristics of various antennas. Working Group 3 of COST 244 has proposed some canonical problems for comparing different numerical methods developed for calculation of absorbed power in the human head to assess the potential hazard caused by the use of mobile communication devices. The objective of this report is to measure the radiation efficiency of antennas in the vicinity of the human head models defined by COST 244 to investigate how the radiation efficiency changes with the different models. The pattern integration method is used as the measurement method. The experimental results are shown and compared with the numerical results by using the finite difference time domain (FDTD) method.

Original languageEnglish
Title of host publicationIEEE Antennas and Propagation Society International Symposium
Subtitle of host publicationWireless Technologies and Information Networks, APS 1999 - Held in conjunction with USNC/URSI National Radio Science Meeting
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1118-1121
Number of pages4
ISBN (Electronic)078035639X, 9780780356399
DOIs
Publication statusPublished - 1999 Jan 1
Event1999 IEEE Antennas and Propagation Society International Symposium, APSURSI 1999 - Orlando, United States
Duration: 1999 Jul 111999 Jul 16

Publication series

NameIEEE Antennas and Propagation Society International Symposium: Wireless Technologies and Information Networks, APS 1999 - Held in conjunction with USNC/URSI National Radio Science Meeting
Volume2

Other

Other1999 IEEE Antennas and Propagation Society International Symposium, APSURSI 1999
Country/TerritoryUnited States
CityOrlando
Period99/7/1199/7/16

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Radiation

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