330 GHz FMCW image sensor for homeland security applications

Boris Kapilevich, Yosef Pinhasi, Ruth Arusi, Michael Anisimov, Danny Hardon, Boris Litvak, Yan Wool

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


A single-pixel imaging remote sensor operating at 330 GHz is described. It is based on a frequency modulated continuous wave (FMCW) and aimed at detection of concealed objects for ranges up to 40 m. The system consists of 2 horn-lens antennas integrated with a homodyne transceiver. The synthesized linear FMCW signal at X-band is multiplied by a factor of 32 to generate the transmitted signal. An intermediate frequency (IF) signal obtained in the output port of the 2-nd harmonic mixer is employed for image processing. Distance measurements were made by performing data acquisition unit based on LabView interface and resulting in a range resolution about 1 cm. Examples of 2D and 3D images reconstructed with this sensor are presented.

Original languageEnglish
Pages (from-to)1370-1381
Number of pages12
JournalJournal of Infrared, Millimeter, and Terahertz Waves
Issue number11
StatePublished - Nov 2010


  • FMCW radar
  • Image reconstruction
  • THz and mm-wave imaging


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