SIEm - Proposte PRIN-2007
Progettazione di antenne indossabili
e caratterizzazione del canale di comunicazione
in sistemi on-body ad alta affidabilità e a larga banda
Paolo Nepa
Unità di ricerca di Pisa
Roma, 4 Dicembre 2006
SIEm - Proposte PRIN-2007
WEARABLE ELECTRONICS (wired)
Wearable computers, on-body networks,
off-body communications, wired on-body
and in-body communications
Military and biomedical applications (and
entertainment)
Roma, 4 Dicembre 2006
SIEm - Proposte PRIN-2007
Wireless On-Body Communications
Wireless body-centric communications:
multiple antennas on the body
connecting sensors, hard disk and CPU
boards, compact displays)
Involved technological aspects
 Wearable antennas: efficient, compact, low profile, reconfigurable (smart
technology, diversity schemes), wideband or multi-band
 Channel characterization: path loss, delay spread, multi-path effects
 Compact and low-power devices (long-life battery) depending on
standard and frequency allocation (WLAN at 2.4 /5.8 GHz, UWB)
Roma, 4 Dicembre 2006
(see http://www.apple.com/it/ipod/nike/ for a shoes-iPod communication system
SIEm - Proposte PRIN-2007
Open problems
 Efficient analysis of EM propagation and radiation in on-body radio links
(biological issue modeling, whole-body numerical modeling)
 Analysis and design of wearable antennas for on-body communications (effects of
body on antenna efficiency and near-field radiation)
 Characterization of wearable antennas for on-body communications (near-field
and efficiency measurements on antennas mounted on a person/phantom)
 Channel characterization (EM propagation modeling) as a function of antenna
position/orientation and body posture/movement
 SAR estimation, EMC issues for devices sharing the same communication
channel
Roma, 4 Dicembre 2006
SIEm - Proposte PRIN-2007
Project activities and deliverables
WP
Contents
WP1
Modeling of the EM propagation and radiation
for on-body radio links (whole-body modeling)
Efficient numerical or
analytical/numerical codes
WP2
Analysis and design of wearable antennas for
different on-body locations/standards
Wearable antenna prototypes
WP3
Antenna characterization (on a person/phantom)
“Measurement procedures”
WP4
Channel characterization through both
numerical simulations and measurements (for
different antenna positions and body postures)
Channel parameters and
simple models for system
designers
WP5
SAR estimation and EM compatibilty for
different standards and frequency allocations
“Tips” and power limits for
system designers
Roma, 4 Dicembre 2006
Deleverables
SIEm - Proposte PRIN-2007
Project activities and background
WP
Contents
Expertise
WP1
Modeling of the EM propagation and radiation Numerical EM simulations
for on-body radio links (whole-body modeling) (FDTD)
WP2
Analysis and design of wearable antennas for
different on-body locations/standards
Planar antenna design
WP3
Antenna characterization (on a
person/phantom)
Antenna measurement
capability and facilities (Near
Field Measurements)
WP4
Channel characterization through both
numerical simulations and measurements (for
different antenna positions and body postures)
Channel sounding and
characterization (TLC
background)
WP5
SAR estimation and EM compatibilty for
different standards and frequency allocations
EM propagation in biological
tissues, antenna coupling
Roma, 4 Dicembre 2006