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SUMMARY:Antennas for Body-Centric Wireless Communications
DTSTART:20110622T110000
DTSTAMP:20260408T104449Z
UID:d3e2eb84e4f63ee3037eec72954fb7424864b2935cb940cd909f4409
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Koichi Ito\, Chiba University\nRecently\, a study on bod
 y-centric wireless communications has become an active and attractive area
  of research because of their various applications such as e-healthcare\, 
 support systems for specialized occupations\, monitoring systems for elder
 ly and handicapped people\, entertainment\, and so on. Whereas UHF bands a
 re subjects of interest especially in Europe and USA\, HF bands are of gre
 at interest especially in Japan. Hence\, all of the prospective frequencie
 s are in an extremely wide range\, and an objective idea on how to select 
 a right frequency band for individual applications is required. As for the
  antennas\, many types of wearable (on-body) and implantable (in-body) ant
 ennas have been reported. Currently in our laboratory\, we have been study
 ing on frequency dependence of basic characteristics of simple wearable an
 tennas as well as body-centric wireless communication channels in the rang
 e of HF to UHF (3 MHz – 3 GHz). Also\, we have been investigating numeri
 cally and experimentally thin implantable antennas in UHF band. In this pr
 esentation\, firstly\, electric field distributions around the human body 
 wearing a small top-loaded monopole antenna are numerically calculated and
  compared in a wide range of HF to UHF bands. Then\, received open voltage
 s at receiving antennas which are equipped at several different points on 
 the human body are numerically investigated. The received open voltages ar
 e also numerically calculated and compared with several different postures
  of the human body. Finally\, some basic performances of miniaturized thin
  implantable antennas are numerically calculated in UHF band. Experimental
  validation is also demonstrated.
LOCATION:SG 0211 https://plan.epfl.ch/?room==SG%0200211
STATUS:CONFIRMED
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