Journal of Radio Electronics. eISSN 1684-1719. 2024. ¹7

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DOI: https://doi.org/10.30898/1684-1719.2024.7.7

 

 

 

EVALUATION OF THE INFLUENCE OF THE DIELECTRIC SUBSTRATE

MATERIAL OF THE MODAL FILTER WITH ELECTROMAGNETIC

ABSORBER ON THE DIFFERENCE OF LINEAR DELAYS OF MODES

 

M.S. Murmansky, N.O. Kuzmin, Y.S. Zhechev

 

Tomsk State University of Control Systems and Radioelectronics

634050, Tomsk, Lenin pr., 40

 

The paper was received April 24, 2024.

 

Abstract. The paper presents the results of an estimation of the influence of the substrate material on delays of a modal filter with an electromagnetic absorber. The modal filter was simulated by using electrodynamic and quasistatic approaches in the frequency range from 0 to 10 GHz. The time responses to a trapezoidal pulse of short duration were estimated using N-norms. The minimum output pulse amplitude was 0.125 V for FSD220G material with a conductor length of 1000 mm. The maximum output pulse amplitude was 0.217 V for FR-4 material with a conductor length of 1000 mm. The maximum difference of per-unit-length delays of the propagation modes was 3.577 ns for the FSD220G material.

Key words: modal filter, N-norms, pulse decomposition, ultrawideband pulse, absorber, delay lines.

Financing: The study was supported by the Russian Science Foundation under Project No. 23-29-00486 at TUSUR.

Corresponding author: Murmansky Mihail Semenovich, murmanskiimihail@gmail.com

 

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For citation:

Murmanskiy M.S., Kuzmin N.O., Zhechev E.S. Estimation of influence of the substrate material of the modal filter with electromagnetic absorber on the difference of the modal delays. // Journal of Radio Electronics. – 2024. – ¹.7. https://doi.org/10.30898/1684-1719.2024.7.7 (In Russian)