Automatic RF leakage signal canceler in MRI applications

Sung Min Sohn, Michael Garwood, John Thomas Vaughan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


This work presents the feasibility demonstration of an automatic RF leakage canceler for magnetic resonance imaging (MRI) applications that require a simultaneous transmit and receive (STAR) system. The automatic system with wireless control enables a radiofrequency (RF) coil to achieve greater than 40 dB decoupling between transmit and receive ports in 900 ms. The system stability and noise contribution to MR images were evaluated. To demonstrate feasibility of this approach, MR images were acquired by transmitting an RF excitation pulse and acquiring an MR receive signal simultaneously on a 4-tesla (T) MRI scanner.

Original languageEnglish (US)
Title of host publication2017 IEEE MTT-S International Microwave Symposium, IMS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages2
ISBN (Electronic)9781509063604
StatePublished - Oct 4 2017
Externally publishedYes
Event2017 IEEE MTT-S International Microwave Symposium, IMS 2017 - Honololu, United States
Duration: Jun 4 2017Jun 9 2017

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X


Conference2017 IEEE MTT-S International Microwave Symposium, IMS 2017
Country/TerritoryUnited States


  • Magnetic resonance imaging (MRI)
  • RF leakage signal canceling
  • RF signal decoupling
  • Simultaneous transmit and receive (STAR)

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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