Enhanced Wireless Interchip Communication Performance Using Symmetrical Layers and Soft/Hard Surface Concepts

We studied several aspects of wireless interchip communication between adjacent ICs. The concept of symmetrical layers is introduced as a general approach to eliminate the undesired destructive interference and redirect the wasted radiated energy to free space toward the receiving antenna. The use of soft/hard surfaces and electromagnetic bandgap (EBG) structures to guide the radiated energy toward the receiving antenna is studied thoroughly. The use of such concepts has a significant advantage, in focusing the energy toward the receiving antenna and eliminating the spherical spreading losses arising from the radiated spherical wave nature.