An experimental study on thin absorber using lossy sheet and periodic metal films

Author

Tamaru, R. ; Yasuzumi, T. ; Hashimoto, O. ; Tada, M. ; Wano, T. ; Fukuda, Y.

Author_Institution

Dept. of Electr. Eng. & Electron., Aoyama Gakuin Univ., Sagamihara, Japan

fYear

2009

fDate

7-10 Dec. 2009

Firstpage

1262

Lastpage

1265

Abstract

In this paper, an one-layered type thin wave absorber consisting of periodic metal films and a lossy sheet is investigated. Firstly, surface impedance that satisfies a matching condition of lossless and lossy materials is calculated as a function of a complex relative permittivity. Next, the dielectric constants of the loss material are measured. Moreover, the absorption characteristics of the wave absorber are analytically examined by an electromagnetic field simulator. In addition, the wave absorber is fabricated and measured. As the results, it is shown that the tendency of the absorption characteristics is similar to simulated one.

Keywords

electromagnetic wave absorption; permittivity; absorption characteristics; complex relative permittivity; dielectric constants; electromagnetic field simulator; experimental study; lossless materials; lossy materials; lossy sheet; one-layered type thin wave absorber; periodic metal films; Dielectric constant; Dielectric loss measurement; Dielectric materials; Dielectric measurements; Dielectric thin films; Electromagnetic measurements; Electromagnetic wave absorption; Permittivity measurement; Sheet materials; Surface impedance; Lossy sheet; Periodic metal film; Surface impedance; Thin wave absorber;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2009. APMC 2009. Asia Pacific

Conference_Location

Singapore

Print_ISBN

978-1-4244-2801-4

Electronic_ISBN

978-1-4244-2802-1

Type

conf

DOI

10.1109/APMC.2009.5384446

Filename

5384446