Title :
A study on a reduced crosstalk for the design of “CAT 6” high speed data transmission modular jack
Author :
Rhee, Joong-Geun ; Chung, Sam Young ; Rvu, Daewoo
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Hanyang Univ., Ansan, South Korea
Abstract :
In this paper, a method of canceling and suppressing differential mode crosstalk noise signals caused by nonuniform coupling between two transmission lines in UTP (unshielded twisted pair) modular jacks is discussed. Differential mode crosstalk noise signals in balanced transmission lines in UTP modular jacks were suppressed by inserting auxiliary capacitances between balanced transmission line pairs which are closely located to each other. To verify the effectiveness of inserted capacitances, precisely calculated auxiliary capacitances were applied to 10 pin modular jacks which are used in a LAN (local area network) at 250 Mb/s with UTP cables. The NEXT (near end crosstalk) losses were measured to prove its applicability
Keywords :
capacitance; crosstalk; electric connectors; electromagnetic compatibility; electromagnetic interference; transmission line theory; twisted pair cables; 250 Mbit/s; CAT 6 high-speed data transmission modular jack; LAN; auxiliary capacitances; balanced transmission lines; crosstalk reduction; differential mode crosstalk noise signals; local area network; near end crosstalk losses; nonuniform coupling; unshielded twisted pair modular jacks; Cables; Capacitance; Circuits; Conductors; Crosstalk; Electromagnetic interference; Impedance; Lifting equipment; Local area networks; Transmission lines;
Conference_Titel :
Environmental Electromagnetics, 2000. CEEM 2000. Proceedings. Asia-Pacific Conference on
Conference_Location :
Shanghai
Print_ISBN :
7-5635-0420-6
DOI :
10.1109/CEEM.2000.853890
