A remotely interrogated near-field sensor for sub-λ microwave imaging

Mahkamehossadat Mostafavi, Niccolo Horvath, Matthew Flores, Neel Mistry, Michelle Stephanie Smekal, Rodolfo Diaz

Research output: Contribution to journalArticlepeer-review


A wideband surface-scanning near-field sensor in the form of a slot antenna, remotely interrogated by a wireless signal is reported. Perturbation of the antenna near-field by subwavelength objects (λ/10) on the surface is detected in the far-field as a change in the antenna signature, yielding image of the surface structure.

Original languageEnglish (US)
Pages (from-to)2677-2682
Number of pages6
JournalMicrowave and Optical Technology Letters
Issue number11
StatePublished - Nov 1 2016


  • holography
  • microwave sub-wavelength imaging
  • sensor array
  • slot antennas

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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