Radiated Electromagnetic Field Immunity Test Method for Wireless LAN Using Opened Parallel Wired Cell

Masamitsu TOKUDA  Masayuki KITORA  Yasuo HONMA  Kouhei ICHIKAWA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E88-B   No.8   pp.3229-3234
Publication Date: 2005/08/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.8.3229
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility)
Category: Communications
Keyword: 
PW cell,  wireless LAN,  immunity measurement,  radiated radio-frequency electromagnetic immunity,  EMC,  

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Summary: 
We study radiated RF (radio-frequency) electromagnetic field immunity test system for wireless LAN system by using opened PW (Parallel Wired) cell, in which metal cover is removed. Leakage electric field at distance of 160 cm from the opened PW cell decreases until 30 dB, and then does not affect to operation of the AP (Access Point) composed of the wireless LAN system that communicates EUT (Equipment Under Test) installed in the PW cell. NSA (Normalized Site Attenuation) between EUT and AP changes only several dB by inserting the PW cell, and then it can be concluded that the effect of PW cell for radio wave property of wireless communication system is negligible small. In addition, we try to measure dependencies of impressing level of disturbance wave on a throughput of wireless LAN systems IEEE802.11b and IEEE802.11g. As a result, it is confirmed that the radiated RF electromagnetic field immunity test system for wireless LAN system can be composed by using the opened PW cell without affecting from impressing disturbance wave.