V. S. Priputin1, A. A. Komkov2, Yu. M. Spodobaev3, A. A. Yelizarov4, M. A. Mashkova5
1, 2 Digital Independence LLC (Moscow, Russia)
3 Volga Region State University of Telecommunications and Informatics (Samara, Russia)
4 Moscow Institute of Electronics and Mathematics, National Research University Higher School of Economics
4, 5 Moscow Technical University of Communications and Informatics

1 v.s.priputin@independence.digital, 2 a.a.komkov@independence.digital, 3 y.spodobaev@psuti.ru, 4 a.yelizarov@hse.ru, 5 m.a.mashkova@mtuci.ru

Dual polarized four-arm sinuous antennas are widely used in modern practice because they maintain their performance over a broad frequency range. Matching devices play a crucial role in such antennas: they ensure proper impedance matching between the radiating elements and the connectors of the antenna feeder system, and they also determine the antenna’s radiation pattern and overall dimensions. This study aims to realize a compact planar sinuous antenna that is matched over a wide frequency band and capable of using the hemispherical spaces on both sides of the antenna plane. The proposed sinuous antenna is equipped with a matching device consisting of two microstrip transformer low pass filters built on pin based slow wave structures, rotated by 90 degrees relative to each other. These transformers are connected on one side to the antenna arms and on the other side to two feeder connectors, thus providing dual polarization operation. The topology of the transformer filters is calculated for the specified operating frequency band (cut off frequency of the filter). The practical significance of this work lies in the improved matching quality and increased impedance bandwidth between the radiating elements and the feeder connectors, the ability to use both hemispherical spaces on either side of the antenna plane, and the substantial reduction of the overall antenna dimensions.

Priputin V.S., Komkov A.A., Spodobaev Yu.M., Yelizarov A.A., Mashkova M.A. Application of microwave frequency-selective circuits based on metamaterials for matching sinuous antennas // Antennas. 2026. № 4. P. 22–28. DOI: https://doi.org/10.18127/ j03209601-202604-03

1. Ghaedi F., Jamali J., Taghizadeh M. A wideband dual-polarized antenna using magneto-electric dipoles for base station applications. International Journal of Electronics and Communications. 2020. V. 126. Article № 153395. DOI: 10.1016/j.aeue.2020.153395.
2. Liu R., Tian X., Sima B. et al. A dual-polarized dual-band patch antenna based on orthogonal modes manipulation. International Journal of Antennas and Propagation. 2022. Article ID 2879735. DOI: 10.1155/2022/2879735.
3. Gu H., Ge L., Zhang J. A dual-band dual-polarized omnidirectional antenna. Frontiers in Physics. 2020. V. 8. Article № 614911. DOI: 10.3389/fphy.2020.614911.
4. Awl H.N., Al-Hindawi A.M.J. Simulated and experimental studies of broadband dual-polarized metasurface antenna for 5G applications. Journal of Communications Technology and Electronics. 2023. V. 68. P. 724–731. DOI: 10.1134/S106422692307001X.
5. Patent № 4658262 US. Dual polarized sinuous antennas. R.H. Duhamel. Apr. 14, 1987.
6. Patent № 2819847S1 RF. Sinusnaya dvukhpolyarizatsionnaya chetyrekhplechevaya antenna s ustrojstvom zapitki dlya soglasovaniya soprotivlenij. A.V. Malinka, V.A. Khodunov, A.A. Bashketov, S.S. Kulikov. Opublikovano 27.05.2024. Byul. № 15. (in Russian)
7. Vahdani M. The sinuous antenna in dual polarized configuration. Low-profile, ultra-wideband and dual polarized antennas and feeding systems. 2008. P. 92–100. URL: https://pastel.archives-ouvertes.fr/pastel-000060860 (data obrashcheniya: 18.05.2026).
8. Khodunov V.A., Kulikov S.S., Isaev M.A., Doroshenko V.V., Prosetskij V.N. Shirokopolosnaya chetyrekhplechevaya sinusnaya antenna apparatury radiomonitoringa i radiopelengatsii s sistemoj zapitki iz dvukh ortogonal'no sovmeshchennykh pechatnykh transformatorov soprotivlenij. Radiotekhnika. 2024. T. 88. № 5. S. 67–74. (in Russian)
9. Elizarov A.A., Kukharenko A.S. Mikrovolnovye chastotno-selektivnye ustrojstva na rezonansnykh otrezkakh elektrodinamicheskikh zamedlyayushchikh sistem i strukturakh s metamaterialami. M.: Izd. dom Vysshej shkoly ekonomiki. 2019. (in Russian)
10. Patent № 46389U1 RF. Mikropoloskovyj fil'tr nizkikh chastot na shtyrevoj grebenke. A.A. Elizarov, T.A. Lebedeva. Opubl. 27.06.2005. Byul. № 18. (in Russian)
11. Patent № 2853557S1 RF. Malogabaritnaya sinusnaya antenna. V.S. Priputin, A.A. Komkov, Yu.M. Spodobaev. Opubl. 24.12.25. Byul. № 36. (in Russian)