Title :
Wave Absorber by Using Cylindrical Bars with Magnetic Loss Covers Arranged Metallic Mesh for Installing between ETC Lanes
Author :
Matsumoto, Kouta ; Kitamoto, Atsushi ; Nakamura, Takuya ; Hashimoto, Osamu ; Aoyagi, Takahiro ; Miyamoto, Takashi
Author_Institution :
Coll. of Sci. & Eng., Aoyama Gakuin Univ., Sagamihara
Abstract :
The wave absorber composed of cylindrical bars arranged periodically and metallic mesh for improving visibility is proposed for ETC, and characteristics of reflectivity and shielding effect are evaluated analytically and experimentally. As a result, reflectivity of -10 dB and shielding effect of -25 dB are obtained for circularly polarized wave when the gap between cylindrical bars is 30 mm. Therefore, realization of proposed wave absorber for installing between ETC lanes can be clarified.
Keywords :
electromagnetic shielding; electromagnetic wave absorption; electromagnetic wave polarisation; electromagnetic wave reflection; ETC lanes; circularly polarized wave; cylindrical bars; magnetic loss; metallic mesh; reflectivity effect; shielding effect; wave absorber; Bars; Conducting materials; Educational technology; Magnetic losses; Magnetic materials; Magnetic shielding; Microwave technology; Polarization; Reflectivity; Sheet materials;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4554904
