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Planar detectors for multielement systems of millimeter-wave imaging

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Radiophysics and Quantum Electronics Aims and scope

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.

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Authors and Affiliations

  1. Institute for Physics of Microstructures of the Russian Academy of Sciences, Nizhny Novgorod, Russia

    V. I. Shashkin, V. R. Zakamov, A. V. Murel’ & Yu. I. Chechenin

  2. Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia

    Yu. A. Dryagin, S. V. Krivov & L. M. Kukin

Authors
  1. V. I. Shashkin
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  2. Yu. A. Dryagin
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  3. V. R. Zakamov
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  4. S. V. Krivov
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  5. L. M. Kukin
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  6. A. V. Murel’
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  7. Yu. I. Chechenin
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Correspondence to V. I. Shashkin.

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__________

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 50, No. 12, pp. 1077–1087, December 2007.

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Shashkin, V.I., Dryagin, Y.A., Zakamov, V.R. et al. Planar detectors for multielement systems of millimeter-wave imaging. Radiophys Quantum El 50, 973–982 (2007). https://doi.org/10.1007/s11141-007-0091-z

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  • DOI: https://doi.org/10.1007/s11141-007-0091-z

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