Title :
Stopband Analysis Using Dispersion Diagram for Two-Dimensional Electromagnetic Bandgap Structures in Printed Circuit Boards
Author :
Toyota, Yoshitaka ; Engin, Arif Ege ; Kim, Tae Hong ; Swaminathan, Madhavan
Author_Institution :
Dept. of Commun. Network Eng, Okayama Univ.
Abstract :
Electromagnetic bandgap (EBG) structures that provide an excellent isolation within the stopband are extremely effective in suppressing propagation of simultaneous switching noise on parallel power planes. However, a scattering parameter measurement and full-wave electromagnetic simulation for their entire structure are costly and time consuming. This letter presents a two-dimensional dispersion-diagram analysis based on a unit-cell network of EBG structures by extending a well-known dispersion-diagram analysis of one-dimensional infinite periodic structures. The approach is extremely effective in computing stopband frequencies and provides the stopbands with good agreement to the measured results
Keywords :
S-parameters; circuit noise; multiport networks; periodic structures; photonic band gap; printed circuits; 2D electromagnetic bandgap structures; dispersion diagram; four-port network; full-wave electromagnetic simulation; infinite periodic structures; parallel power planes; printed circuit boards; scattering parameter measurement; simultaneous switching noise; stopband analysis; unit-cell network; Circuit noise; Electromagnetic analysis; Electromagnetic interference; Electromagnetic measurements; Electromagnetic propagation; Metamaterials; Periodic structures; Printed circuits; Scattering parameters; Time measurement; Electromagnetic bandgap (EBG) structures; four-port network; parallel power planes; periodic structures; printed circuit boards (PCBs); simultaneous switching noise (SSN); two-dimensional (2-D) dispersion-diagram analysis;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.885587
