Magnetic coupling 6.765-6.795 kHz Meets coexistence conditions Meets coexistence (low power for with the following conditions with specific mobile devices) emission limits provided Avoiding the use of WPT • systems transmitting power Magnetic coupling 20.05-38 kHz NA in the amateur radio (low-high power 42-58 kHz NA frequency ranges for home 62-100 kHz NA appliances) Capacitive coupling 425-524 kHz NA (low power for mobile devices) Coexistence conditions in assessment: (*1) Amateur devices: For capacitive coupling, 472-479 kHz band is an in-band case (sharing the same spectrum). For amateur radios, no official interference level requirements or rules from other systems are found. However, an agreement was to exclude this band allocated to Amateur Radios in the WPT operation frequency range and to set appropriate frequency offset. (*2) Public radio systems: 6 765-6 795 kHz is not designated as an ISM band in Japan. However, the regulations’ provisions allow the use for WPT applications in the band. New emission limits for WPT products in this band have been agreed, which may allow coexistence with the incumbent systems and higher transmission power in this band. 20 Summary of WPT for EV coexistence results in Japan WPT for Incumbent systems EV Candidate SCRD (*1) ATS (*2) ITRS (*3) AM broadcast Amateur frequency (40 kHz, 60 (10-250 kHz) (10-250 kHz) (*4) radio devices ranges kHz) (526.5- (*5) (135.7- 1 606.5 kHz) 137.8 kHz) 42-48 kHz Not meet Not assessed Meets coexistence since another coexistence conditions condition did conditions not meet 52-58 kHz Not meet Not assessed Meets coexistence another coexistence conditions condition did conditions not meet
Magnetic coupling (low power for mobile devices) 6.765-6.795 kHz Meets coexistence conditions with the following • Avoiding the use of WPT systems transmitting power in the amateur radio frequency ranges Meets coexistence conditions with specific emission limits provided Magnetic coupling (low-high power for home appliances) 20.05-38 kHz NA 42-58 kHz NA 62-100 kHz NA Capacitive coupling (low power for mobile devices) 425-524 kHz NA Coexistence conditions in assessment: (*1) Amateur devices: For capacitive coupling, 472-479 kHz band is an in-band case (sharing the same spectrum). For amateur radios, no official interference level requirements or rules from other systems are found. However, an agreement was to exclude this band allocated to Amateur Radios in the WPT operation frequency range and to set appropriate frequency offset. (*2) Public radio systems: 6 765-6 795 kHz is not designated as an ISM band in Japan. However, the regulations’ provisions allow the use for WPT applications in the band. New emission limits for WPT products in this band have been agreed, which may allow coexistence with the incumbent systems and higher transmission power in this band. 20 Summary of WPT for EV coexistence results in Japan WPT for EV Incumbent systems Candidate frequency ranges SCRD (*1) (40 kHz, 60 kHz) ATS (*2) (10-250 kHz) ITRS (*3) (10-250 kHz) AM broadcast (*4) (526.5- 1 606.5 kHz) Amateur radio devices (*5) (135.7- 137.8 kHz) 42-48 kHz Not meet coexistence conditions Not assessed since another condition did not meet Meets coexistence conditions 52-58 kHz Not meet coexistence conditions Not assessed another condition did not meet Meets coexistence conditions
R-REP-SM.2303-2-2017-MSW-E.docx