DESIGN AND OPTIMIZATION OF A MULTILAYER SHIELD OF DIELECTRICAuthors: D. Monopoli, M. Mussetta, A. Gandelli and R. Zich
Company: Politecnico di Milano, Dipartimento di Elettrotecnica
Date Published: 1/24/2008 Conference: Pan Pacific Symposium
The our work studies the planar shield made by a suitable superimposition of dielectrics layers of different thickness. In order to do that it is necessary to model a transfer function of the shield. During this step we assume a planar and infinite shield. These hypothesis are useful for vertically multilayer device. However, it do not take into account the diffracted effect of the wedges of the device.
Under these assumptions every dielectric layer can be considered as an equivalent impedance. Consequently the shield is described by a transmission line. It yields to a transfer function H in function of the frequency, the dielectrics parameters and the thickness of the layers. The following step consist in the design of the shield. In order to do that it must be chose an ideal transfer function of frequency. This will be the goal to optimize by an evolutionary code. It take as fitness function a combination of H, numbers of dielectrics layers and thickness of shield. Moreover, it can be easily design partial shield.
Finally we design a shield of wireless sensor as example.
Members download articles for free:
Not a member yet?
What else do you get when you join SMTA? Read about all of the benefits that go along with membership.
Notice: Sharing of articles is restricted to just your immediate work group. Downloaded papers should not be stored on an external network or shared on the internet.