Determine how you would design a planar shield to attenuate a far field signal by 15 db. Assumethat the incoming signal has a flat frequency spectrum from about 100 Hz to 10 MHz. Signalsabove 10 MHz and below 100 Hz can be considered to be negligible. Recall that Shielding Factorand attenuation are related to each other by a negative sign. You may consider multi layeredshields if necessary but keeping in mind that multi-layers cost more money. Also, assume thatthe shield cannot be made too thick for weight and cost reasons. Your solution will include calculations and or qualitative explanations.