Development of EM wave absorber for electromagnetic wave environment of 2.4 GHz wireless LAN

Author

Yoon, Sang Gil ; Kim, Dong Il

Author_Institution

Dept. of Radio Sci. & Eng., Korea Maritime Univ., Busan

fYear

2008

fDate

16-20 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

Recently, wireless LAN is often applied at home or in office for several convenience merits. Frequency band of wireless LAN is 2.4 GHz and 5.2 GHz which are specified IEEE 802.11a and IEEE 802.11b. Wireless LAN environment in office has reflected waves that are caused by walls, ceilings, floors, and desks. It creates multi-path problems. Which reduce communication speed and lose data. To solve these problems, using EM wave absorber can be used in wireless LAN environment. EM wave absorber is a special material that can absorb unwanted EM wave and transfer to heat energy. In this paper we fabricated EM wave absorber which has absorption ability of over 20 dB and thickness of less than 3.5 mm for improvement of wireless LAN environment.

Keywords

electromagnetic wave absorption; wireless LAN; EM wave absorber; IEEE 802.11a; IEEE 802.11b; electromagnetic wave environment; frequency 2.4 GHz; frequency 5.2 GHz; heat energy; multi-path problems; wireless LAN; Absorption; Electromagnetic scattering; Equations; Ferrites; Frequency; Permeability measurement; Permittivity measurement; Soft magnetic materials; Thickness measurement; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. APMC 2008. Asia-Pacific

Conference_Location

Macau

Print_ISBN

978-1-4244-2641-6

Electronic_ISBN

978-1-4244-2642-3

Type

conf

DOI

10.1109/APMC.2008.4958651

Filename

4958651