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Modal Filter Based on a Microstrip Line with Two Side Conductors Grounded at Both Ends
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  • Indira Sagiyeva ,
  • Talgat Gazizov ,
  • Yevgeniy Zhechev ,
  • Zarina Kenzhegulova
Indira Sagiyeva
Tomsk State University of Control Systems and Radioelectronics

Corresponding Author:[email protected]

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Talgat Gazizov
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Yevgeniy Zhechev
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Zarina Kenzhegulova
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The article presents the results of a study of a modal filter (MF) based on a microstrip line with two side conductors grounded at both ends. New analytical expressions for calculating the time response in such a structure are given. For their validation, an MF prototype was made and the transmission coefficient was measured in the frequency range from 0 to 12 GHz. In addition, the full-wave electrodynamic simulation and the analysis based on the transmission line theory were carried out. The frequency responses of the MF were converted into time domain responses in the ADS system. At the MF output, the response to an ultra-wideband (UWB) pulse was analyzed. The results for the analytical model are in good agreement with the results of measurements and simulations by the two approaches. It was experimentally proven that the structure under study provides the protection of electrical circuits from a UWB pulse by separating it in time and decreasing its effect on the components.
Oct 2023Published in IEEE Transactions on Electromagnetic Compatibility volume 65 issue 5 on pages 1371-1378. 10.1109/TEMC.2023.3275388