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Development of an original technology for manufacturing of RF antennas on flexible substrates
Author(s): Andrey V. Starodubov; Alexey A. Serdobintsev; Victor V. Galushka; Ilya O. Kozhevnikov; Peter V. Ryabukho; Galina A. Korshunova; Sergey Yu. Gorodkov; Anton M. Pavlov
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Paper Abstract

We have propose an original approach for fabrication of flexible antennas for biomedical-related applications. The technology is based on magnetron sputtering and laser ablation methods. The magnetron sputtering method is used to deposit a thin layer of metal (copper) on a flexible substrate (polyimide film). Then laser ablation is utilized to remove excess copper thus forming an antenna pattern on the metal layer. ISM band flexible design with microstrip feeding structure was chosen for testing this technique. Results of numerical simulation are presented. A number of test flexible antennas were fabricated by our original approach. Similar flexible antennas were also fabricated via photolithography process. A comparison of the experimental results of return loss (S11) measurements of antennas with different fabrication approach was carried out. The obtained experimental data is in a good agreement with the numerical modeling results. Proposed technology has significant advantages in cost, speed, and flexibility over photolithography processes commonly utilized for such applications.

Paper Details

Date Published: 3 June 2019
PDF: 6 pages
Proc. SPIE 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling, 110660B (3 June 2019); doi: 10.1117/12.2525130
Show Author Affiliations
Andrey V. Starodubov, Saratov State Univ. (Russian Federation)
Institute of Radio Engineering and Electronics (Russian Federation)
Alexey A. Serdobintsev, Saratov State Univ. (Russian Federation)
Victor V. Galushka, Saratov State Univ. (Russian Federation)
Ilya O. Kozhevnikov, Saratov State Univ. (Russian Federation)
Peter V. Ryabukho, Saratov State Univ. (Russian Federation)
Galina A. Korshunova, Saratov State Univ. (Russian Federation)
Sergey Yu. Gorodkov, Saratov State Univ. (Russian Federation)
Anton M. Pavlov, Saratov State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 11066:
Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling
Vladimir L. Derbov, Editor(s)

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