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Simple non-invasive measurement of complex permittivity

Research output: Contribution to journalArticle

  • RB Johnson
  • NM Pothecary
  • PM Robinson
  • AW Preece
  • CJ Railton
Original languageEnglish
Pages (from-to)1360 - 1361
Number of pages2
JournalElectronics Letters
Journal issue15
StatePublished - 22 Jul 1993


A simple non-invasive sensor measures complex permittivity at microwave (UHF) frequencies from changes in resonance frequency and reflection coefficient. Response to reference liquids is in good agreement with finite difference time-domain calculation. The sensor is intended for detection and characterisation of breast tumours but has wider applications

Additional information

Publisher: Institution of Electrical and Electronics Engineers (IEE)

    Research areas

  • breast tumours, microwave measurement, biomedical measurement, resonant current sheet sensor, noninvasive sensor


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