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Kanako Tsushima,Satoshi Ogasawara,Koji Orikawa,Masatsugu Takemoto,Kenji Koyama 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
This paper deals with electromagnetic interference radiated from air-conditioner piping that acts as an antenna and emits electromagnetic noise. The current distribution on the piping is measured by using a near-field magnetic probe, and the distribution mode is analyzed. The results show that the piping resonates at the frequencies where the piping length accords with λ/4, 3λ/4, and 5λ/4, and radiates electromagnetic noise as a monopole antenna. This radiation mechanism is confirmed by simulations using the CST EMC Studio electromagnetic field simulator.