Wednesday, June 30, 2004

IEE Communications Engineer: Designing Buildings for the Wireless Age

Apparently this isn't online yet. Full citation: Alan Newbold, "Designing Buildings for the Wireless Age," IEE Communications Engineer v.2 no.3 (Jun/Jul 2004): 18-21.
I mentioned on my other blog about jamming or installing screening material to block mobile phone signals in libraries, theaters, etc. As emergency workers and "essential employees" go to their hiding spaces in buildings outside of the beltway, they have been planning on use mobile phones to maintain communications. Unfortunately, almost all buildings were not designed to take wireless communications into account. If I want to use my cell phone, do I have to go outside to get a signal? Some buildings have been retrofitted with repeaters.

On the other hand, internal wireless data networks can be snooped from across the street.

This articles discusses using frequency selective surfaces (fss) in building design to tackle these problems. Some of these surfaces are films for windows and reflecting material for walls that consists of a pattern of conductors on a dielectric substrate. If the walls have this dielectric substrate, low-pass filters can be installed to allow emergency communications frequencies through. Makes sense, but I wonder how many architects are taking RF into account? Also, what frequency band will we be using in 5 years?

1 comment:

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