Evaluation of Relationship between STP-cable Grounding and Mode Conversion Taking into Account Imbalance Factor

摘要：

　　In grounding an STP cable,mode conversion occurs depending on how to ground it.For investigating the mode conversion in a four-conductor transmission-line system that consists of three conductors and the system ground such as the STP cable above the system ground,as shown in Fig.1.we have developed modal equivalent circuit expressed by an imbalance factor of transmission line,a current division factor,in the same way as we developed the one in a three-conductor transmission-line system.The modal equivalent circuit consists of three modal equivalent circuits of normal mode (Fig.2),primary common mode (Fig.3),and secondary common mode(Fig.4).In this paper,mode conversion between normal mode and primary common mode was evaluated using mixed-mode S parameters and the measured data validated the modal equivalent circuit.As a result,it was found that mode conversion depends on the imbalance factor and it was examined how to ground for suppressing mode conversion.

关键词： modal equivalent circuit mode conversion sources current division factor mode decomposition technique mixed mode S parameter four conductor transmission line system

作者: Tatsuya NOBUNAGA Yoshitaka Toyota Kengo IOKIBE Liuji KOGA Tetsushi WATANABE

作者单位: Graduate School of Natural Science and Technology,Okayama University 3-1-1,Tsushima-Naka,Kita-ku,Oka Inductrial Technology Center of Okayama Prefecture,5301 Haga,Kita-ku,Okayama-shi 701-1296 JAPAN

会议类型: 国际会议

会议名称: Asia-Pacific Conference on Environmental Electromagnetics (2012年第六届亚太环境电磁学会议(CEEM 2012))

会议地点: 上海

会议语种:英文

页码: 119-119

在线出版日期: 2012-11-06（万方平台首次上网日期，不代表论文的发表时间）