Abstract
In this paper, a mounting method is proposed for antennas
used in ultra wideband (UWB) body area network (BAN)
channel sounding, which reduces the antenna’s electromagnetic
coupling to the human body. Coupling with the
body is shown to distort the free space characteristics of
the antenna. An antenna mount modification is proposed
to reduce this distortion, and decrease the variation in antenna
characteristics when mounted. The antennas reflection
coefficient from 4 to 9 GHz is used to assess the coupling
of two UWB BAN antennas when they are mounted
at different distances from the skin and at several locations
on the body. The free space characteristics of the
modified antennas are also tested, showing a reduction of
up to 4.7 dB of radiated power into the body. The modi-
fied antennas are tested in BAN measurement campaigns
showing the fading depth and coherency time of the channels.
| Translated title of the contribution | Improved antenna mounting method for UWB BAN channel measurements |
|---|---|
| Original language | English |
| Title of host publication | COST 2100, Aalborg, Denmark |
| Publisher | COST |
| Pages | 1 - 10 |
| Number of pages | 10 |
| Publication status | Published - 2 Jun 2010 |