Conference Paper

Consideration for Polarization of Antennas in Dynamic Body Area Networks at 400 MHz narrow band.

Authors:
To read the full-text of this research, you can request a copy directly from the author.

Abstract

This paper presents a consideration for directions of both transmitting and receiving antennas in dynamic on-body networks at 403.5 MHz by using FDTD simulation results. The temporal level difference for the six human movements and the six receiving locations are calculated with the antenna directions u, v, and w. The statistical analysis shows that the overall level variations are well modeled by the lognormal fittings by individual combinations of the transmitting and the receiving antenna directions. It is shown that the UW combination of the antenna direction gives largest received level with smallest deviation, however, the differences between the other combinations are not significant. The results in this paper will be used further investigation for propagation channel modeling of on-body networks.

No full-text available

Request Full-text Paper PDF

To read the full-text of this research,
you can request a copy directly from the author.

ResearchGate has not been able to resolve any citations for this publication.
Conference Paper
Full-text available
This paper presents the design of a novel dual-band patch antenna to be used for human BAN communications applications. The antenna has been designed to provide similar monopole-like radiation properties at 950MHz/2.45GHz ISM bands commonly used in BAN wireless communication technologies. The proposed antenna consists of two short circuited ring patch elements integrated on the FR4 substrate. Numerical simulation results of antenna performance in free space and on the surface of a human body together with the antenna-on-body measurements data have being presented and analyzed.
Conference Paper
Full-text available
An animated human model to be used in an electromagnetic simulation software, XFdtd, has been created using a 3D scanned surface of a real person combined with body movement data captured from a motion capture system. Investigations are carried out to verify the accuracy of the human body simulation for different mesh sizes. A study of the effect of body position over an on-body radio channel is also presented. Ultimately, the results will be used to reduce transmit powers between antennas mounted on people.
Article
The stability of a dynamic narrowband on-body area channel is characterized based on real-time measurements of the time domain channel impulse response (CIR) at frequencies near the 900- and 2400-MHz industrial, scientific, and medical (ISM) bands. A new parameter, channel variation factor, characterizes channel coherence time. Body movement is considered at various transmit-receive pair locations on the human body. Movement has considerable impact on the stability of the channel, a reasonable assumption for coherence time is approximately 10 ms, and there is greater temporal stability at the lower frequency.
Article
Numerical Simulations for Wearable BAN Propagation Channel during Various Human Movements
De-emgedding of antennas from propagation channel in wireless communication
  • J Takada
Comutational Electrodynamics Third Edition
  • A Taflove
  • S Hagness
Characterization for a electrically small antenna in proximity to human body
  • T Aoyagi
  • M Kim
  • J Takada