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<p>The advancement of high-power miniature vacuum microelectronic devices in the millimeter-wave and terahertz ranges is very important for numerous applications in wireless high-speed communication, radar systems, electromagnetic sensing, spectroscopy, security, etc. Rapid prototyping of the pivotal electromagnetic components of these sources requires development of precise, fast, and cost-effective novel technologies. In this paper, we present the fabrication outcomes of millimeter-wave electrodynamic structures manufactured using a 3D printing via digital light processing technology, followed by metallization through magnetron sputtering. Rectangular waveguide sections for the V-band (50–75 GHz) and W-band (75–110 GHz) were fabricated, along with more intricate prototypes of periodic slow-wave structures, such as the vane-loaded waveguide structure widely used in traveling-wave tubes and backward-wave oscillators in the millimeter- and submillimeter-wave ranges. The measured cold-test electromagnetic characteristics, which demonstrate good agreement with numerical simulations, are reported.</p>

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Using Additive Technologies for Rapid Prototyping of Millimeter-Wave Electromagnetic Structures

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • A. V. Starodubov,
  • I. S. Ozhogin,
  • A. A. Serdobintsev,
  • I. O. Kozhevnikov,
  • V. N. Titov,
  • V. V. Galushka,
  • I. Sh. Bakhteev,
  • S. Yu. Molchanov,
  • N. M. Ryskin

摘要

The advancement of high-power miniature vacuum microelectronic devices in the millimeter-wave and terahertz ranges is very important for numerous applications in wireless high-speed communication, radar systems, electromagnetic sensing, spectroscopy, security, etc. Rapid prototyping of the pivotal electromagnetic components of these sources requires development of precise, fast, and cost-effective novel technologies. In this paper, we present the fabrication outcomes of millimeter-wave electrodynamic structures manufactured using a 3D printing via digital light processing technology, followed by metallization through magnetron sputtering. Rectangular waveguide sections for the V-band (50–75 GHz) and W-band (75–110 GHz) were fabricated, along with more intricate prototypes of periodic slow-wave structures, such as the vane-loaded waveguide structure widely used in traveling-wave tubes and backward-wave oscillators in the millimeter- and submillimeter-wave ranges. The measured cold-test electromagnetic characteristics, which demonstrate good agreement with numerical simulations, are reported.