Title :
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
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;
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
DOI :
10.1109/APMC.2009.5384446
