Reconfigurable electromagnetic frequency selective surface with high Q-factor transmission resonance

Author

Dmitriev, Victor ; Kawakatsu, Marcelo N.

Author_Institution

Electr. Eng. Dept., Fed. Univ. of Para, Belem, Brazil

fYear

2011

fDate

Oct. 29 2011-Nov. 1 2011

Firstpage

965

Lastpage

969

Abstract

We analyze a planar array composed from a normally magnetized ferrite substrate and metallization in the form of two concentric metal rings in a square cell. This structure possesses a high Q-factor transmission resonance and can be projected with two types of electromagnetic control. The first type is shifting of the resonance frequency of the trapped-mode and the second one is switching from a very high to a low level of transmission by a dc magnetic field. The characteristics of the array are investigated firstly by group theoretical methods and then some numerical results are presented using two different full-wave numerical methods.

Keywords

electromagnetic wave transmission; ferrites; frequency selective surfaces; concentric metal ring; electromagnetic control; full wave numerical method; high Q-factor transmission resonance; magnetized ferrite substrate; planar array; reconfigurable electromagnetic frequency selective surface; square cell; trapped mode; Arrays; Ferrites; Frequency selective surfaces; Magnetic resonance; Metals; Substrates; Computer Simulation Technology; frequency selective surface; magnetized ferrite substrate; moment method; trapped-mode;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International

Conference_Location

Natal

ISSN

Pending

Print_ISBN

978-1-4577-1662-1

Type

conf

DOI

10.1109/IMOC.2011.6169253

Filename

6169253