Experimental and numerical study of electromagnetic parameters of planar slow-wave structures for millimeter-wave vacuum electronic devices

Andrey V. Starodubov; Alexey A. Serdobintsev; Anton M. Pavlov; Victor V. Galushka; Ilya V. Sinev; Andrey G. Rozhnev; Roman A. Torgashov; Gennadiy V. Torgashov; Nikita M. Ryskin

doi:10.1117/12.2524646

3 June 2019 Experimental and numerical study of electromagnetic parameters of planar slow-wave structures for millimeter-wave vacuum electronic devices

Andrey V. Starodubov, Alexey A. Serdobintsev, Anton M. Pavlov, Victor V. Galushka, Ilya V. Sinev, Andrey G. Rozhnev, Roman A. Torgashov, Gennadiy V. Torgashov, Nikita M. Ryskin

Author Affiliations +

Proceedings Volume 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling; 1106618 (2019) https://doi.org/10.1117/12.2524646
Event: International Symposium on Optics and Biophotonics VI: Saratov Fall Meeting 2018, 2018, Saratov, Russian Federation

Abstract

Microfabricated vacuum power amplifiers and oscillators operating at millimeter and submillimeter (THz) bands are of great interest for applications in high-speed communication, radar, security and military systems, electronic warfare, etc. In this work, we report the results of numerical simulation and cold-test measurements of electromagnetic parameters of the V-band (50-70 GHz) planar meander-line SWS. The microstrip meander-line SWS is suitable for using in a millimeter-band TWT amplifiers. Several samples of copper microstrip meander-line SWS on a quartz substrate consisting of 50 meander periods with input and output couplers were designed, microfabricated and optimized. The SWS was microfabricated by using magnetron sputtering and laser ablation processes. This technique is a more facile, flexible and lower cost as compared to photolithography method. Transmission and reflection of proposed SWS were measured experimentally and calculated numerically. The results of the experimental cold-test measurements are verified by numerical simulations. Electromagnetic parameters of the SWSs were simulated using the finite-element ANSYS HFSS and COMSOL Multiphysics software packages. The results obtained with these two codes are in excellent agreement with each other and good agreement between experimental and numerical results is also observed.

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Andrey V. Starodubov, Alexey A. Serdobintsev, Anton M. Pavlov, Victor V. Galushka, Ilya V. Sinev, Andrey G. Rozhnev, Roman A. Torgashov, Gennadiy V. Torgashov, and Nikita M. Ryskin "Experimental and numerical study of electromagnetic parameters of planar slow-wave structures for millimeter-wave vacuum electronic devices", Proc. SPIE 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling, 1106618 (3 June 2019); https://doi.org/10.1117/12.2524646

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