Report ITU-R SM.2303-3 (06/2021) Wireless power transmission usingtechnologies other than radio frequencybeam
Foreword
Policy on Intellectual Property Right (IPR)
1 Introduction
2 Applications developed for use of WPT technologies
     2.1 Market situation
     2.2 Portable and mobile devices
          2.2.1 Inductive WPT for mobile devices such as cellular phones and portable multimedia devices
          2.2.2 Resonant WPT for mobile devices such as cellular phones and portable multimedia devices such as smartphones, tablets, portable multimedia devices
     2.3 Home appliance and logistics applications
     2.4 Electric vehicle
3 Technologies employed in or incidental to WPT applications
     3.1 For portable and mobile devices
          3.1.1 Magnetic induction WPT technology
          3.1.2 Magnetic resonance WPT technology
          3.1.3 Capacitive coupling WPT
     3.2 For home appliances
     3.3 For electrical vehicles
4 WPT’s standardization situation in the world
     4.1 National standards development organizations
          4.1.1 China
          4.1.2 Japan
          4.1.3 Korea
     4.2 International and regional organizations
          4.2.1 IEC CISPR
          4.2.2 Information on human exposure to EMF
          4.2.3  EMF Measurement Results
5 Status of spectrum
     5.1 WPT, distinction between ISM and short range device RF bands
     5.2  Non-ISM bands used on a national basis for WPT
     5.3 ISM bands used on a national basis for WPT
6 Status of national regulation
7 Impact studies between WPT and radiocommunication services
     7.1 Study results and ongoing activities in some administrations
          7.1.1 Japan
          7.1.2 Korea
          7.1.3 Germany
     7.2 Ongoing WPT studies and results on the impact to broadcasting services
          7.2.1 Analysis of the impact of WPT systems to broadcasting services
               7.2.1.1 Protection criteria and acceptable interference
               7.2.1.2 Derivation of the maximum tolerable H field at the broadcasting receiver from WPT installations
               7.2.1.3 Consideration of distance and propagation related factors
               7.2.1.4 Mitigation strategies
               7.2.1.5 Further work
          7.2.2 Japan's study on the impact to and compatibility with broadcasting services in urban and suburban areas
               7.2.2.1 Japan’s points of view for impact study
               7.2.2.2 Power transmission specifications for measurement
               7.2.2.3 Emission limits for assessment
               7.2.2.4 Analytical study
               7.2.2.5 Assessment of study results
     7.3 Frequency ranges 100/110-300 kHz for WPT
     7.4 Frequency range 6 765-6 795 kHz for WPT
     7.5 Impact to the standard frequency and time signal services
     7.6 CEPT experiences to protect services from the emissions of inductive SRDs
8 Summary
9 References
Annex 1  Guidance on RF exposure assessment in various organizations and administrations
Annex 2  Example of the use of the 6 765-6 795 kHz ISM band  to charge mobile devices
Annex 3  Measurement data of radiated noise and conductive noise from WPT systems
1 Introduction
2 Measurement models and measurement methods
     2.1 WPT system for EV charging
     2.2 Mobile devices, portable devices, and home appliances
3 Target radiation emission limit set by BWF
     3.1 Limit for WPT system for EV charging
     3.2 Limit for mobile and portable devices using magnetic resonance technology
     3.3 Limit for home appliances using magnetic inductive technology
     3.4 Limit for mobile and portable devices using capacitive coupling technology
4 Measurement results of radiated noise and conductive noise
     4.1 WPT system for EV charging
     4.2 Mobile and portable devices using magnetic resonance technology
     4.3 Home appliances using magnetic inductive technology
     4.4 Mobile and portable devices using capacitive coupling technology
Annex 4  Measurements of WPT EV systems for the heavy-duty vehicle
4.1 Test conditions
     4.1.1 Circumstance of test site
     4.1.2 Configuration of heavy-duty WPT EV system
     4.1.3 Operating conditions
     4.1.4 Testing conditions
4.2 Test results at different distances
     4.2.1 10 m
     4.2.2 30 m
     4.2.3 50 m
     4.2.4 100 m
     4.2.5 Compared data I (9 kHz ~ 150 kHz)
     4.2.6 Compared data II (150 kHz ~ 30 MHz)
4.3 Conclusions
4.4 Impact study in Korea
     4.4.1 Introduction
     4.4.2 The impact study for 60 kHz standard time signal from Japan (NICT)
     4.4.3 Impact study for broadcasting LF (148.5 ~ 283.5 kHz)
Annex 5  Test results of electromagnetic disturbance of WPT
     5.1 Introduction
     5.2 General measurement layout and conditions
     5.3 Emission limit
     5.4 Electromagnetic disturbance
          5.4.1 Mobile devices using magnetic induction technology
               5.4.1.1 Overview of test equipment
               5.4.1.2 Electromagnetic emissions
Annex 6  Broadcast planning
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