Three-dimensional photonic bandgap (PBG) structures using alumina as the hi
gh-permittivity material Were designed and then fabricated by using the fus
ed deposition of multimaterials (FDMM) process. The finite-element and real
-time electromagnetic modeling of the fabricated structure resulted in a 3-
D photonic bandgap in the 16-24 GHz range, which agreed with experimental m
easurements. (C) 2001 John Wiley & Sons, Inc.