Laser technologies used in manufacture of components of vacuum millimeter-wave electronic devices
D.A. Nozhkin1,2, D.A. Bessonov1,3, I.A. Navrotsky1,4, R.A. Torgashov1,2, V.D. Churikova2, S.Yu. Molchanov5, I.S. Ozhogin2, A.A. Rostuncova1,2, N.M. Ryskin1,2
1Saratov Branch, Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Saratov, Russia
2Saratov State University, Saratov, Russia
3Yuri Gagarin State Technical University of Saratov, Saratov, Russia
4RPE Almaz, Saratov, Russia
5Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Russia

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The study outlines the micro-dimensional structures fabricated for the vacuum millimeter waveband electronics devices using micro-processing with nanosecond laser pulses. The specifics of laser cutting technology for thin plates made of various materials (copper, molybdenum) are discussed. The mockups of rectangular W-band (75-110 GHz) waveguides and decelerating V-band (50-65 GHz) systems were fabricated. The results of morphological analysis and experimental investigation of S-parameters of the fabricated samples are described. The design of a micro-sized electron gun has been developed, and the results of its components (cathode, focusing electrodes) fabrication are presented. Keywords: laser micro-processing, traveling wave tube, decelerating system, electron gun, rectangular waveguide.
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