Techniques for measuring the electromagnetic shielding effectiveness of materials. I. Far-field source simulation. 

 -  IEEE Transactions on Electromagnetic Compatibility, , 30(3), p.239-250, 1988 .
<br/><br/> Shielding effectiveness relates to the ability of a material to reduce the transmission of propagating fields in order to electromagnetically isolate one region from another. Because the shielding capability of a complex material is difficult to predict, it often must be measured. A number of approaches to simulating far-field source are studied, including the use of coaxial transmission-line holders and a time-domain system. In each case, the system frequency range, test sample requirements, test field type, dynamic range, measurement time required, and analytical background are considered. Data taken on a common set of materials are presented 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ELECTROMAGNETIC MEASUREMENTS<br/>ELECTROMAGNETIC SHIELDING<br/>SYSTEM TESTING<br/>ELECTROMAGNETIC PROPAGATION<br/>COAXIAL COMPONENTS<br/>TRANSMISSION LINES<br/>TIME DOMAIN ANALYSIS<br/>DYNAMIC RANGE<br/>FREQUENCY MEASUREMENT<br/>TIME MEASUREMENT