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Radiophysics and Quantum Electronics

, Volume 50, Issue 12, pp 973–982 | Cite as

Planar detectors for multielement systems of millimeter-wave imaging

  • V. I. Shashkin
  • Yu. A. Dryagin
  • V. R. Zakamov
  • S. V. Krivov
  • L. M. Kukin
  • A. V. Murel’
  • Yu. I. Chechenin
Article

Abstract

We discuss the concept of developing a millimeter-wave multielement matrix receiver on the basis of planar antennas with directly coupled low-barrier Schottky diodes. Three main problems are considered which involve choosing and developing a design of the planar antenna coupled with the low-barrier Schottky diode, optimizing the parameters of the low-barrier Schottky diodes for obtaining maximum sensitivity, and ensuring compact arrangement with weak mutual influence of the planar detectors in a two-dimensional array. We propose a design of the slot antenna with an active resistance of about 800 Ω at a resonant frequency of 94 GHz. The detection characteristics of diodes with the differential Schottky-barrier resistance in the range Rj = 0.4–1000 kΩ for a zero bias are studied experimentally. The mutual influence of the neighboring antennas is examined for developing the multielement radio-imaging system. The conditions of weak cross influence of the closely located planar detectors are determined.

Keywords

Resonant Frequency Directional Pattern Planar Detector Slot Antenna Planar Antenna 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • V. I. Shashkin
    • 1
  • Yu. A. Dryagin
    • 2
  • V. R. Zakamov
    • 1
  • S. V. Krivov
    • 2
  • L. M. Kukin
    • 2
  • A. V. Murel’
    • 1
  • Yu. I. Chechenin
    • 1
  1. 1.Institute for Physics of Microstructures of the Russian Academy of SciencesNizhny NovgorodRussia
  2. 2.Institute of Applied Physics of the Russian Academy of SciencesNizhny NovgorodRussia

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