2026-04-13T05:24:22Zhttps://recercat.cat/oai/requestoai:recercat.cat:2072/4114582026-01-30T01:03:13Zcom_2072_98col_2072_378192
RECERCAT
author
Vélez, Paris
author
Valero, M.
author
Su, Lijuan
author
Naqui Garolera, Jordi
author
Mata Contreras, Francisco Javier
author
Bonache Albacete, Jordi
2016
This article presents common-mode suppressed microstrip differential lines based on chirped electromagnetic bandgaps (EBGs). To achieve common-mode suppression in a wide band, the common-mode impedance is modulated following a sinusoidal chirping, whereas the differential-mode impedance is kept unaltered, thus ensuring that the line is transparent for that mode. The result is a differential line exhibiting common-mode suppression in a band from 2.45 GHz up to 7.37 GHz centered at 5 GHz (98.4% bandwidth). As compared to previous works, based on single tuned or double tuned EBGs, the proposed technique is useful to achieve wider rejection bands for the common mode. Nevertheless, the authors also propose an alternative based on multi-tuned EBGs, in order to obtain a comparable fractional bandwidth. In both cases, the design procedure is simple, and the ground plane is kept unaltered.
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Electromagnetic bandgaps (EBGs)
Microstrip technology;differential lines
Enhancing common-mode suppression in microstrip differential lines by means of chirped and multi-tuned electromagnetic bandgaps
Article