Definition and misuse of return loss

Trevor S. Bird*

*Corresponding author for this work

Research output: Contribution to journalEditorialpeer-review

76 Citations (Scopus)


As Editor-in-Chief of the Transactions, I have noticed over the past year or so that the occasional incorrect use of the term return loss has now grown into a flood of misuse. Perhaps over 30% of all antenna papers submitted to the Transactions in the past twelve months have used return loss incorrectly. The reason for this is uncertain. To remind everyone of the correct terminology, I review the definition of return loss, briefly outline the history of the term, and give some examples of current misuse.

Original languageEnglish
Pages (from-to)166-167
Number of pages2
JournalIEEE Antennas and Propagation Magazine
Issue number2
Publication statusPublished - 2009
Externally publishedYes


  • Loss measurement
  • Return loss
  • Transmission line measurements


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