Forward-nulling passive millimeterwave imaging using cooling dielectric tube

Hiroyasu Sato, Kohei Kuriyama, Kunio Sawaya

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In order to improve the detection performance in passive millimeter-wave (PMMW) imaging, a new method forwarding a null in the direction of human body and objects is proposed. The forward-nulling PMMW imaging using a dielectric tube occupied by cooling water placed near the focus line of a parabolic cylinder are performed. It is shown experimentally that the contrast between human body and conducting objects such as a conducting plate and a conducting sphere is improved by the presence of the cooling dielectric tube and parabolic cylinder.

Original languageEnglish
Pages (from-to)1627-1634
Number of pages8
JournalIEICE Transactions on Electronics
Issue number10
Publication statusPublished - 2012 Oct


  • Cooling dielectric tube
  • Incoherent
  • Noise source
  • Parabolic cylinder
  • Passive millimeter wave imaging (PMMW)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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