Microwave oven interference on wireless LANs operating in the 2.4 GHz ISM band

Author

Kamerman, Ad ; Erkocevic, N.

Author_Institution

Lucent Technol., Nieuwegein, Netherlands

Volume

3

fYear

1997

fDate

1-4 Sep 1997

Firstpage

1221

Abstract

Commercial microwave ovens as applied in restaurants have two magnetron tubes and compared to domestic kitchen counterparts they spread the higher RF power and radiated heating energy more evenly. The domestic kitchen or residential microwave ovens have only one magnetron tube. The interference from the commercial type of microwave ovens is more difficult to characterise than the interference from the residential ones. The commercial type of microwave ovens radiate a CW-like interference that sweeps over tens of MHz during the two bursts per mains power cycle. The residential ones give a CW-like interference that has a more or less stable frequency near 2.45 GHz occurring once per mains power cycle. The impact of the interference from the commercial type of microwave ovens on wireless LANs conforming the IEEE 802.11 standard for both DSSS (direct sequence spread spectrum) and FHSS (frequency hopping spread spectrum) has been evaluated

Keywords

IEEE standards; frequency hop communication; magnetrons; microwave heating; ovens; radiofrequency interference; spread spectrum communication; telecommunication standards; wireless LAN; 2.4 GHz; CW-like interference; DSSS; FHSS; IEEE 802.11 standard; ISM band; RF power; commercial microwave ovens; direct sequence spread spectrum; domestic kitchen ovens; frequency hopping spread spectrum; magnetron tubes; mains power cycle; microwave oven interference; radiated heating energy; residential microwave ovens; wireless LAN; Electromagnetic heating; Frequency measurement; Interference; Local area networks; Microwave communication; Microwave devices; Microwave ovens; Microwave technology; Spread spectrum communication; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on

Conference_Location

Helsinki

Print_ISBN

0-7803-3871-5

Type

conf

DOI

10.1109/PIMRC.1997.627080

Filename

627080