Architecture ofExposure Systems intheRange ofthe Microwaves forBiological Applications

Greateffortis now devolved to the studyof the biological effectsinducedby exposureto theelectromagnetic fields. Using flat striplinesandslottedcables, we realised an emitting system to irradiate a spatial region with opportune sizesand shapes. The firstsystem provides theuse of a flatstrip line8 rn long, supplied bya microwave signal at thefrequency in the range 900-960MHz to reproduce a typical frequency rangeusedbytheTACS-GSM radiomobile systems. Thesecondsystemprovides theuse of a slottedcable6 rn long,supplied by the same microwavesignal. The effectiveelectricfield emittedhasbeenmeasured in a boxcloseto the emitting system. Theanalysis showsthat:most of thevalues, 88.5%,measured closeto theflat strip lineina totalvolumewhosedimensions are 800x20x6 centimetres are distributed intherange of level1,0-i-3,0 V/m;alsomost of thevalues, 77.0 %,measured closeto theslotted cablesina totalvolumewhose dimensions are 600x6x10 centimetres are distributed intherangeof level 1,0-i-3, 0 V/m.Then, thee.e.f.valuesproduced by thestrip lineare distributed more uniformly than thatoftheslotted cableina widervolume.