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2000 Fiscal Year Final Research Report Summary

Research and Development of Millimeter Wave Imaging Technologies

Research Project

Project/Area Number 10355013
Research Category

Grant-in-Aid for Scientific Research (A).

Allocation TypeSingle-year Grants
Section展開研究
Research Field 電子デバイス・機器工学
Research InstitutionTohoku University

Principal Investigator

MIZUNO Koji  Research Institute of Electrical Communication Professor, 電気通信研究所, 教授 (30005326)

Co-Investigator(Kenkyū-buntansha) BAE Jongsuck  Research Institute of Electrical Communication Associate Professor, 電気通信研究所, 助教授 (20165525)
ISHIDA Osami  Mitsubishi Electric Co, Ltd. General Manager, 情報技術総合研究所, 部長(研究職)
YONEYAMA Masahide  Faculty of Engineering, Toyo University Professor, 工学部, 教授
HAMANO Tetsuko  Research Institute of Electrical Communication Research Associate, 電気通信研究所, 助手 (70281657)
SUGAWARA Satoru  Ricoh Co. Ltd. Head of Section, 応用電子研究所, 主任(研究職)
Project Period (FY) 1998 – 2000
KeywordsMillimeter Wave / Imaging
Research Abstract

Millimeter(MM) wave focal plane imaging is able to provide information through clouds, smoke, and dust when visible and IR systems are unusable. It can also be used in the fields of plasma measurement remote sensing, etc. Conventional millimeter wave imaging relies mainly on the use of a single detector, with the optics mechanically scanned to obtain an image. The use of multiple detectors in an imaging array, however does not require mechanical scanning and makes real-time imaging possible. The object of this research is to develop an element for the imaging array. The element consists of a wide-band antenna, LNA (Low Noise Amplifier), a detector and a low-pass filter. The development of MM-wave optics to form images is also important. The results of this research are as follows :
1. Considering atmospheric attenuation as a function of frequency of MM-waves, theoretical analyses for passive imaging array elements have been performed to give required characteristics of the elements and the frequency for the experiments to be 35 GHz.
2. The ray-tracing method was used to design MM-wave optics with less aberration. An aspherical lens with a diameter of 500 mm was made using polyethylene.
3. A wide-band tapered slot antenna with the taper curve of Fermi-Dirac function was developed for the elements (patents pending).
4. LNA's for the 35 GHz band have been designed and constructed using commercially available MMIC's to have an amplifier of 40 dB gain and 7 dB NF.
5. Using the imaging element, outdoor scenes such as sky, building and trees and also human body such as face and hand have been successfully observed at the 35 GHz band. The applications of the MM-wave passive imaging include robot sensors through flame, detection of land mines and so on.

  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] T.Nozokido: "Visualizastion of photoexcited free carriers by scanning near-field millmeter-wave microscopy"APPLIED PHYSICS LETTERS. 77・1. 145-150 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Hamano: "Contrast quantification for millimeter-wave scanning near-field microscope with a slit probe"2000 IEEE MTT-S International Microwave Symposium Digest. 1623-1626 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Mizuno: "Imaging technologies in the millimeter wave region [Invited]"Digest of the 8th International Conference on Terahertz Electronics. 175-179 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A.Mase: "Development of advanced millimeter-wave plasma diagnostics"Digest of 25th International Conference on Infrared and Millimeter Waves. 85-86 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A.Mase: "Application of millimeter-wave imaging system to LHD"REVIEW OF SCIENTIFIC INSTRUMENTS. 72・1. 375-378 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 濱野哲子: "スリット型プローブを持つミリ波帯近接場顕微鏡におけるコントラスト評価"電子情報通信学会総合大会講演講演論文集(エレクトロニクス1). 178 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 莅戸立夫: "ミリ波帯イメージング技術における画像再構成法"電子情報通信学会ソサイエティ大会講演論文集1. 338-339 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 戸田俊一: "ミリ波帯パッシブイメージングシステムの設計(1)〜システムに要求されるNoise Figure〜"電気関係学会東北支部連合大会講演論文集. 61 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長内辰夫: "ミリ波帯パッシブイメージングシステムの設計(2)〜イメージングアレイ素子の設計〜"電気関係学会東北支部連合大会講演論文集. 62 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 縫村修次: "スリット型プローブを用いたミリ波帯近接場顕微鏡の電磁界シュミレータによる動作解析"電気関係学会東北支部連合大会講演論文集. 58 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Nozokido: "Visualizastion of photoexcited free carriers by scanning near-field millimeter-wave microscopy"APPLIED PHYSICS LETTERS. Vol.77, no.1. 145-150 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hamano: "Contrast quantification for millimeter-wave scanning nearfield rnicroscope with a slit probe"2000 IEEE MIT-S International Microwave Symposium Digest.. 1623-1626 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Mizuno: "Imaging technologies in the millimeter wave region [Invited]"Digest of the 8th International Conference on Terahertz Electronics.. 175-179 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A.Mase: "Development of advanced millimeter-wave plasma diagnostics."Digest of 25th International Conference on Infrared and Millimeter Waves.. 85-86 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A.Mase: "Application of millimeter-wave imaging system to LHD."REVIEW OF SCIENTIFIC INSTRUMENTS. Vol.72, no.1. 375-378 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hamano: "Contrast evalution of millimeter-wave scanning near-field microscope with a slit-type probe."Proceedings of the 2000 IEICE General Conferencre. 178

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Nozokido: "Image reconstruction methods in an active-mode millimeter-wave imaging and in a scanning near-field millimeter-wave microscopy using a metal slit-type probe."Proceedings of the 2000 IEICE General Conferencre. 338-339

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Toda: "Design of passive-imaging system(1) -Estimation of noise figure in the system"2000 Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan. 61

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Osanai: "Design of passive-imagine system(2) -Fabrication of imaging antenna array component-"2000 Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan. 62

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Nuimura: "Simulation of millimeter-wave scanning near-field microscope with a slit-type probe."2000 Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan. 58

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2002-03-26  

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