Browse > Article
http://dx.doi.org/10.7840/kics.2012.37C.12.1211

Protection Distance Calculation Between Inductive Systems and Radiocommunication Services Using Frequency Below 30 MHz  

Shim, Yong-Sup (공주대학교 정보통신공학과, 한국전자통신연구원 전파기술부 스마트전파인프라연구팀)
Lee, Il-Kyoo (공주대학교 전기전자제어공학부)
Park, Seung-Keun (한국전자통신연구원)
Abstract
This paper describes separation distance to protect radiocommunication services from the interference of inductive systems using frequencies below 30 MHz for the co-existence between radiocommunication services and inductive systems. For the analysis, the interference scenario model is proposed between inductive system and radiocommunication services. Then the calculation method of protection distance is suggested by comparing the radiation power of inductive system with the allowable interference level of victim services, radiocommunication services, according to the applied propagation model. Also, the protection distance for protecting radiocommunication services in the 30 MHz below is calculated through the interference analysis from RFID(Radio Frequency IDentification) and PDP(Plasma Display Panel) TV based on the suggested method. The proposed calculation method was adopted as ITU-R recommendation in related with resolution 63 at ITU-R SG(Study Group) 1 meeting in June, 2012. It will be available to use for the protection of radiocommunication services from the interference of wireless power transfer system and power line telecommunication system.
Keywords
Inductive systems; Radiocommunication services; Protection distance;
Citations & Related Records
연도 인용수 순위
  • Reference
1 CISPR, "Industrial, scientific and medical (ISM) radio frequency equipment electromagnetic disturbance characteristics limit and methods of measurement," CISPR Publication 11, Jun. 2004.
2 ITU-R, "Protection distance calculation between inductive systems and radiocommunication services using frequencies below 30 MHz," recommendation ITU-R SM.2028, Sep. 2012.
3 ERC, "Propagation model and interference range calculation for Inductive Systems 10 kHz-30 MHz," ERC Report 69, Aug. 1999.
4 IEC PAS 62825, "Methods of measurement and limits for radiated disturbances from plasma display panel TVs in the frequency range 150 kHz to 30 MHz," IEC/CISPR/I, Aug. 2012.
5 ITU-R, "Radio noise," ITU-R Recommendation P.372, Oct. 2009.
6 CEPT, "SEAMCAT Handbook," ECO, pp. 20, Jan. 2010.
7 ITU-R, "Impact of devices using ultra-wideband technology on systems operating within radiocommunication services," ITU-R Recommendation SM.1757, May. 2006.
8 ERC, "Compatibility study for generic limits for the emission levels of inductive SRDs below 30 MHz," ERC Report 67, Oct. 2005.
9 ITU-R, "Ground-wave propagation curves for frequencies between 10 kHz and 30 MHz," ITU-R Recommendation P.368-9, Jan. 2007.
10 Notification of Korea Communications Commission 2012-Number 12, "Radio equipment regulation," Mar. 2012.