Influence of balance-unbalance conversion factor on radiated emission characteristics of balanced cables

Author

Hamada, Seiji ; Kawashima, Tetsuya ; Ochura, Johnson ; Maki, Masahiro ; Shimoshio, Yoshifumi ; Tokuda, Masamitsu

Author_Institution

Fac. of Eng., Kyushu Inst. of Technol., Kitakyushu, Japan

Volume

1

fYear

2001

fDate

2001

Firstpage

31

Abstract

We investigated LCTL (longitudinal conversion transfer loss) and radiated emission characteristics of a twisted pair wire in UTP (unshielded twisted pair)-category 5 for a few hundred MHz, with unbalance elements inserted to imitate an actual terminal equipment. As the result, it can be seen that after inserting unbalance element, radiated emission increased due to deterioration in LCTL. The LCTL results calculated using 4-terminal-pair-network chain matrix agreed well with the measured results. The calculated results of the radiated emissions were also obtained using by our proposed analysis method

Keywords

electric noise measurement; electromagnetic interference; twisted pair cables; voltage measurement; 100 kHz to 100 MHz; 4-terminal-pair-network chain matrix; balance-unbalance conversion factor; longitudinal conversion transfer loss; radiated emission characteristics; radiated emission increase; terminal equipment imitation; twisted pair wire; unbalance element; unbalance elements; unshielded twisted pair category 5; voltage measurement; Circuits; Communication cables; Communication industry; Educational institutions; Electromagnetic compatibility; Frequency conversion; Local area networks; Multimedia systems; Wire; Wiring;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-6569-0

Type

conf

DOI

10.1109/ISEMC.2001.950518

Filename

950518