Robert, just a partial answer:
Wood will strongly reflect 2.5 GHz and higher frequencies. Grain orientation relative to field polarization has an effect too. Neven > > Do some of you have a good feel for the propagation characteristics of 2.5 > and 5 GHz radiation? I am curious about how they interact with typical > environmental materials like walls, earth, furniture, plumbing, wiring, > foliage, etc. What materials are transparent, reflective, attenuating? Is > attenuation related mostly to water content? > I have a good feel for these characteristics with regard to light, sound and > TV, but I’m unfamiliar with GHertz frequencies. For example, TV/FM is very > sensitive to reflections from nearby wiring and people and reacts strongly > to movements of a few inches. I would expect WiFi to be similarly sensitive > to small metal surfaces like nearby office furniture or appliances rather > than wires and to very small movements. > > Bob Johnson > ITE Safety > > > > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ieee-pses.org/ > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Ron Pickard: [email protected] > Dave Heald: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ieee-pses.org/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
