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Special Graduate Schools
Graduate School of Science and Technology
Department of Information and Electronics Engineering
3. Theses(Master)
Laptop Mounted Equipment 시험용 파워케이블의 노이즈 저감방안에 관한 연구
- Alternative Title
- JEAJUN PARK
- Author(s)
- 박제준
- Alternative Author(s)
- JEAJUN PARK
- Advisor
- 김영길
- Department
- 산업대학원 정보전자공학과
- Publisher
- The Graduate School, Ajou University
- Publication Year
- 2014-02
- Language
- kor
- Abstract
- 본 연구는 3GPP Spec에 새롭게 소개된 Laptop Mounted Equipment를 시험하기 위한 Laptop Mounted Equipment 시험용 파워케이블의 노이즈 저감방안의 도출에 목적을 두고 있다. Laptop Mounted Equipment의 Antenna Performance시험(TIS : total isotropic sensitivity , TRP : total radiated power)을 진행하는데 있어 전원케이블의 노이즈가 측정오류를 발생시킨다. 측정오류 발생시 안테나 성능시험결과의 오류로 시장에서 단말의 품질저하 문제를 가져올 수 있다. 현재 3GPP에서 LME관련 인증시험 Spec이 release가 되었지만 해당 내용에 대해서는 아직 고려가 되어있지 않으며 관련 업체에서도 파워케이블의 노이즈 저감방안에 대한 연구사례가 전무하다. 따라서 본 연구에서는 LME시험용 파워케이블의 노이즈 저감을 위해 사용되는 페라이트코어의 최소성능 요구사항을 도출하였다. 본 논문은 향후 시험스펙에서 제시되지 않은 부분에 대한 실험을 통한 스펙의 필요성을 제시함으로서 향후 유용하게 사용될 것으로 기대되어 진다.
- Alternative Abstract
- This Study aims to get the noise reduction method of power cable for LME. and OTA(Over The Air) Antenna performance to test TRP(Total Radiated Power) and TIS(Total Raditated Sensitivity) is getting more important than ever. because the impact of the communication device to other electronic device may cause a dangerous problem especially in case of medical devices or aviational product. As a part of the OTA testing, LME is newly introduced as a test method for conformance liability. LME is a communication device which is mounted on laptop. To test OTA performance of the LME, defining testing method is one of the key factor to setup the testing standard for this item. To test LME, power cable is absolutely necessary to give a power to LME. and there is a noise from the power cable, but the specification does not mention about how to remove this noise. this study used a ferrite core to reduce noise from the power cable. this study can be helpful to make a correct detail guide line to reduce the noise from the power cable to get the right measured value of the OTA testing.
- Fulltext
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- Special Graduate Schools > Graduate School of Science and Technology > Department of Information and Electronics Engineering > 3. Theses(Master)
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