Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2021. №12
ContentsFull text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2021.12.10
UDC: 621.391.825
THE EFFECT OF REFERENCE CONDUCTOR LOCATION
ON THE ULTRASHORT PULSE DECOMPOSITION IN A MODAL FILTER
ON A DOUBLE-SIDED PRINTED CIRCUIT BOARD
M. A. Samoylichenko, T. R. Gazizov
Tomsk State University of Control Systems and Radioelectronics
634050, prospect Lenina 40, Tomsk, Russia
The paper was received December 18, 2021
Abstract. The location of the reference conductor in a modal filter (MF) on a double-sided printed circuit board (PCB) could affect the decomposition of an acting ultrashort pulse (USP) in the MF. The paper considers two ways of connecting the reference conductors: at the ends of the MF and along the entire MF length. The effect of the filter cross-sectional parameters on the decomposition of USPs is also discussed. The results showed that for two ways of connecting the reference conductors, the difference in per-unit-length mode delays increases with decreasing h and increasing w and s. This, in turn, leads to the increase in the MF attenuation factor. It was revealed that the difference in per-unit-length mode delays is slightly larger in the case of connecting the reference conductors at the end for all values of the parameters. It was also found that if the reference conductors are connected only at the ends, 3 pulses arrive at the MF output (despite the 5 propagating modes in the line). And when the conductors are located along the entire length there are 2 pulses. Accordingly, the decomposition of the input action into 3 pulses allows achieving a larger attenuation of the USP (3.2 times relative to half of the e.m.f.).
Key words: electromagnetic compatibility, protection, ultrashort pulse, modal filters, double-sided printed circuit board, reference conductor.
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For citation:
Samoylichenko M.A., Gazizov T.R. The effect of reference conductor location on the ultrashort pulse decomposition in a modal filter on a double-sided printed circuit board. Zhurnal radioelektroniki [Journal of Radio Electronics] [online]. 2021. №12. https://doi.org/10.30898/1684-1719.2021.12.10 (In Russian)