Which is the best EBG structure for power plane noise suppression?
Unfortunately, there is no single EBG structure that works best in every application. All have strengths and weaknesses. EBG structures need to be tailored to the application. Some types, such as hybrid EBG structures, can have a 100:1 bandwidth for the stopband, but they are limited in current carry capability to a few amps or less. Fortunately, WEMTEC has developed many different types of parallel-plate EBG structures with a spectrum of features and benefits. • Q: What challenges or disadvantages might exist for the integration of WEMTEC technology ? A: There are several key performance parameters that limit the application of internal EBG structures for parallel-plate mode suppression in PDNs. • The single biggest issue is the size of the unit cell in the EBG structure. Everyone wants a smaller unit cell to fit into their available board or package real estate. And at least a 3 x 3 array of unit cells is required to achieve the filtering properties of EBG structures. • The next bigg
