Impact of Photonic Crystal Power/Ground Layer density on power integrity performance of high-speed power buses

This paper investigates the suppression of unwanted noise in high speed power buses by the adoption of photonic crystal power/ground layer (PCPL) structure. The performance of PCPL with different densities of high dielectric rods is analyzed in terms of S-parameters and electric field distribution. An attempt is made in order to relate geometrical properties (like rods´ density and filling ratio) to the shift of the central frequency of the band gaps a well as bandwidth. The simulated results are validated by means of comparison with measured data.