| Research of Additional Pulses Appearing During Ultrashort Pulse Decomposition in a Modal Filter with Edge and Broadside Couplings in Double-Sided Printed Circuit Board |
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| Authors |
| | Samoylichenko M.A. |
| | Gazizov T.R. |
| Date of publication |
| | 2021 |
| DOI |
| | 10.31114/2078-7707-2021-4-134-139 |
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| Abstract |
| | New devices called modal filters (MF) are successfully used for ultrashort pulse (USP) protection. It was revealed that in structures with modal decomposition there appear not only main pulses of the mode but also additional pulses. These pulses could be a new resource for improving the MF efficiency because they allow for the distribution of USP energy over time. Previous studies have shown that in some MFs the maximum amplitude can be determined by the amplitude of the additional mode pulses rather than by the mode pulses. Therefore, it is relevant to examine additional pulses in detail. The current paper considers the appearance of additional pulses at the output of an MF realized on a double-sided board with edge and broadside coupling, as well as in three structures obtained from the given MF by removing one passive conductor. In the structures under consideration, there are 50 Ohm resistors at the ends of each of the passive conductors. It was revealed that additional pulses are present in all investigated MF structures. It was shown that the amplitude of the additional pulses does not exceed the amplitude of the main mode pulses. However, in each of the MF structures there are additional pulses with higher amplitudes than pulses of modes with triple line pass. The minimum amplitude of additional pulses is observed in the MF structure without the lower right passive conductor, and the maximum in the structure without the upper left one. It is demonstrated that in the MF with all passive conductors the number of additional pulses is the least. |
| Keywords |
| | modal filter, ultrashort pulse, printed circuit board, protection device. |
| Library reference |
| | Samoylichenko M.A., Gazizov T.R. Research of Additional Pulses Appearing During Ultrashort Pulse Decomposition in a Modal Filter with Edge and Broadside Couplings in Double-Sided Printed Circuit Board // Problems of Perspective Micro- and Nanoelectronic Systems Development - 2021. Issue 4. P. 134-139. doi:10.31114/2078-7707-2021-4-134-139 |
| URL of paper |
| | http://www.mes-conference.ru/data/year2021/pdf/D047.pdf |
