A simple way to design complex metallic photonic band-gap structures

In this paper a simple method is presented in order to design complex MPBG structures able to have multiple frequency behaviors. This functionality is all the more important as it is wildly used in modem communication systems . In a first study, a mixed structure composed of a metallic photonic band gap material and a Bragg mirror is designed in order to obtain a wide band- gap. For this structure, the influence of the Bragg mirror on the MPBG is t aken into account by considering electrical length. Even if the results are not those expected, this study shows that no correction must be done. The behavior of isolated structures is already enough To evaluate the behavior of the mixed structure. Therefore, basic laws can be drawn. These laws are not only useful to design multiple frequency structures, they can also be u sed to design MPBG manufactured with a multi layer technology.