Journal of Advanced Navigation Technology (한국항행학회논문지)
- Volume 6 Issue 3
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- Pages.195-202
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- 2002
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- 1226-9026(pISSN)
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- 2288-842X(eISSN)
Study on the Passive IMD Improvement of RF DIN Connectors
RF DIN Connector의 Passive IMD 개선에 관한 연구
- Ko, Yun-Sun (Dongyang E&C Co., Ltd.) ;
- Chung, Jae-Pil (Dept. of Electronic Communication, Gachon Gil College) ;
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Oh, Chang-Heon
(School of Information Technology, Korea University of Technology and Education) ;
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Shin, Dong-Uk
(School of Information Technology, Korea University of Technology and Education)
- Received : 2002.10.10
- Published : 2002.11.30
Abstract
Recently, as the range of mobile communication services is extended, the interference between adjacent base-stations is increased. Nowdays, one of the important factors causing interference is IMD (Inter-Modulation Distortion) problems. Not only active IMD but also passive IMD effects must be considered to design a CDMA system. In this study, we design and implement 7/16" DIN connectors which have a various intensity of surface illumination, thickness and quality of plating material to analyze the effects of PIMD. And propose the methods for improving the PIMD characteristics: First, it is more profitable to use the metal which has good intensity of surface illumination where most of all electric currents passes through it. Secondly, we should plate metals more than
최근 이동통신 서비스가 확대됨에 따라 인접 기지국간의 간섭문제가 증가하게 되었으며, 그에 따라 CDMA 시스템의 active IMD뿐만 아니라 PIMD(Passive Inter-Modulation Distortion)에 대한 문제도 시스템 설계 시 고려되어야 한다. 본 논문에서는 RF connector 중 대표적 connector인 7/16" DIN connector를 통하여 동축선에서의 PIMD 발생원인 분석을 위한 다양한 표면조도 및 도금두께, 도금재질을 갖는 어댑터를 설계, 제작하여 PIMD 발생 정도를 분석하였고, PIMD 개선 방안을 제안하였다. 첫째, 대부분의 전류가 통과하는 경로에는 표면조도가 좋은 금속이 전도율이 좋아 유리하며, 둘째, RF 에너지가 충분히 한 매질에서 통과할 수 있도록 최소
Keywords