Patent ID: 6603981
Filing Date: 2003-08-05
Classification: A42B,H04B,H05K

Abstract:
A method of radiation shielding device rating in terms of shielding or blockage effectiveness in reducing the energy of radiated electromagnetic fields is referred to as radiation blockage factor RBF having to encompass teachings of the method by which RBF may be estimated is in modifying the transmission line method and circuit method from strict closed-form measuring standards to specifically represent for opened-form design method solutions as new use standards performance interpretation and introduce modified test representation procedures to include definitions of opened-form direct line-of-sight Fresnel zone blocking criteria with diffraction effects comprising of:using the opened-form standard unit of RBF measurement is the decibel or dB, the decibel value is the ratio of two measurements of electromagnetic field ratio of two measurement of electromagnetic field strength taken before and after shielding is in place, using an alternate opened-form standard unit of RBFmag measurement as is calculated in magnitude ratio, using alternate nomenclatures for RBF device rating the shielding effectiveness, are radiation proof factor RPF and radiation shield factor RSF, using an alternate opened-form standard unit of RPFmag measurement as is calculated in magnitude ratio, and using an alternate opened-form standard unit of RSFmag measurement as is calculated in magnitude ratio, whereby said device rating provide a quality figure-of-merit measure for the invention in either decibel or magnitude units of measurement.