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From: Mike Poulton
Subject: Re: Tracker implant for children - Real or Fake?
Date: 8 Sep 2002 06:38:43 GMT
Organization: MTP Technologies
On 08 Sep 2002, email@example.com (Bob Wilson) said:
> The RF attenuation issue assumes that there is any signal to attenuate
> in the first place. At any reasonable frequency (let's say 2GHz at the
> maximum), the "antenna" in this thing is so electrically short, that
> its radiation efficiency will be hopeless. It will need a LOT of RF
> power just to get a reasonable signal level. Problems with body
> attenuation are trivial by comparison.
At 2GHz, you could probably fit a proper 1/2 wave dipole in the implant.
A 1/4 wave would definitely fit. However, it would be surrounded by
grounded conductive tissue! Seems hopeless to me. Considering the
present hysteria and uncertainty regarding cellphone transmission health
effects, I don't think it would be prudent to implant transmitters of
equal or greater peak RF power.
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