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http://dx.doi.org/10.5515/KJKIEES.2010.21.11.1201

A Study on the Improvement of PIMD in the Mobile Communication Base Station Antenna  

Seo, Chang-Jae (Department of Wireless Communications Engineering, Kwangwoon University)
Cheon, Chang-Yul (Department of Electrical and Computer Engineering, University of Seoul)
Chung, Young-Seek (Department of Wireless Communications Engineering, Kwangwoon University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.21, no.11, 2010 , pp. 1201-1207 More about this Journal
Abstract
As the mobile services have been increased, the PIMD(Passive Inter-Modulation Distortion) as well as the active-IMD of the CDMA system should be considered for the design of base station antenna systems, because they have an interference of the neighboring base stations. In this paper, in order to reduce the nonlinearity of current caused by the local point contact, we have investigated an influence of the combination of nuts, contact torque(kgf.cm), and the contact area on the PIMD. We propose the improvement techniques of PIMD by investigating the effects of the distance of nuts, the contact area, and the type of nuts.
Keywords
Passive Inter-Modulation Distortion; PIMD; AIMD;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 G. H. Schennum, G. Rosati, "Mimimizing passive intermodulation products generation in high power satellites", IEEE, 1996.   DOI
2 D. D. Henkes, S. C. Kwok, "Intermodulation concepts and calculations", Applied Microwave & Wireless, Jul. 1997.
3 J. Z. Wilcox, P. Molmud, "Thermal heating cotribution to intermodulation fields in coaxial waveguides", IEEE, Transactions on Communication, Feb. 1976.   DOI
4 P. L. Lui, "Passive intermodulation interference in communication system", Electronics & Communication Engineering Journal, Jun. 1990.
5 Jin Tae Kim, In-Kui Cho, Myung Jeong, and Tae-Goo Choy, "Effects of external PIM sources on antenna PIM measurements", ETRI, pp. 435-442, vol. 24, no. 6, Dec. 2002.   과학기술학회마을   DOI
6 Youn Sun Ko, "RF DIN Connector의 Passive IMD 개선에 관한 연구", 한국항행학회논문지, 6(3), pp. 195-202, 2002년 11월.
7 Myung Young Jeong, "Passive IMD 측정의 환경적 영향", ETRI, 전파연구소, 2004년.