Surveillance of Reflectivity for a Conductor Shield Based on Temperature and Frequency

The reflection loss of an electromagnetic wave from a material is important parameter in the design of electromagnetic shielding techniques. May the designed circuit can show inefficiency because of the radiation interference from the external sources. To construct proper electronic circuit precautions has to be taken in terms of electromagnetic interferences. The techniques to overcome the electromagnetic interference are electromagnetic compatibility. In this paper mainly discussed about one of the compatibility techniques, shielding by the conductive materials. The shielding ability of the conductive material can be analyzed in terms of reflectivity for a single shielding conductive material. Conductors are best reflectors for electromagnetic waves, when ever electromagnetic waves can be incident on it. The reflectivity of these conductive materials can depends on the temperature. Based on the properties of the conductor as the temperature changes the conductivity of the conductor can changes, by it the reflectivity of the material can also changes. The analysis can be made for reflectivity of a conductive material with respective to the temperature at particular frequency. The thickness of the conductive material not considered here. The variation of reflectivity for different conductive materials at 100 MHz frequency can be analyzed. As the temperature increases the reflectivity of the material can be decreases in small percent. The best reflectivity can be achieved at low temperature. The analysis also carried by comparing at different frequencies for the shielding material.