Exploiting the Phantom-Mode Signal in DSL Applications

Wim Foubert, Carine Neus, Leo Van Biesen, Yves Rolain

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


In order to meet the ever-increasing bandwidth demand of the users, new "digital subscriber line" (DSL) technologies are being developed. In addition to the traditional differential mode of the telephone line, telecom operators are now looking in to the exploitation of the phantom-mode signal. New transmission line models, using the multiconductor transmission lines theory, were developed to support this extended use. In this paper, it is shown that the phantom mode is an eigenmode of the quad cable system, and hence, according to the theory, there is no crosstalk between this mode and the differential mode.
Original languageEnglish
Pages (from-to)896-902
Number of pages7
JournalIEEE Transactions on Instrumentation and Measurement
Publication statusPublished - 1 Apr 2012


  • Digital subscriber line (DSL) technologies
  • multiconductor transmission line
  • phantom mode
  • quad


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