2.5G SDH 전자파 감소용 저역통과필터 설계

• 영문명: Design of Lοw Pass Filter to reduce EMI from 2.5G SDH system
• 발행기관: 한국시뮬레이션학회
• 저자명: 이성원(Lee Sung Won) 김영범(Kim Young Beom)
• 간행물 정보: 『한국시뮬레이션학회 논문지』제10권 제4호, 21~29쪽, 전체 9쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2001.12.31

영문 초록

In this paper, EMI measurement, the STGU simulation being conducted, filter design, its characteristics, and its implementation to the PCB, and finally test resluts are discussed. When the low pass filter was implemented within the STGU, the power of EMI decreased more than 20dBm. Fimally, when TIE and MTIE, two important quality measure in synchronous reference clcok, was assessed, ITU-T G813 requirement was satisfied. EMI(Eiectromagnetic Interface) is a measure of electomagnetic radiation from equipment in the range of 10KHz to 3GHz, and can cause unexpected reactions of electronics/electrical equipment. In this study, for safe and stable communication operation, a STGU (System Timing Genetation Unit), which is a 2.5G SDH System and a major EMI source, was employed to simulate electromagnetic interface. Using Open-Site test, the power of fundamental frequency of EMI of interest and its harmonics were measured. Also, a low pass filter at cut-off frequency of 2GHz was specifically designed for this study to minimize the effect of EMI between electronic components.

목차

1. 서론

2. 2.5G 동기식 광전송장치

3. 필터특성 시뮬레이션 및 측정결과

4. 측정결과

5. 결론

참고문헌