A Wideband Common-Mode Suppression Filter for Bend Discontinuities in Differential Signaling Using Tightly Coupled Microstrips

Gazda, Celina; Ginste, Dries Vande; Rogier, Hendrik; Wu, Ruey-Beei; Zutter, D. De

doi:10.1109/tadvp.2010.2077287

Cited by 69 publications

(49 citation statements)

References 14 publications

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“…7 is analyzed in this section. The line exhibits a larger spacing between the traces at the terminal sections, which is reduced in the central part to achieve lower area occupation and lower mode conversion [21], and a 90-degree bend in the middle. As shown in Fig.…”

Section: B Nonuniform Differential Linementioning

confidence: 99%

“…Figure 9 shows the probability of the common mode voltage levels, arising from both the mismatch in line length between 1 Advanced Design System (ADS), Keysight Technologies, Santa Rosa, CA. the two traces [21] and the asymmetry introduced by the stochastic variations of the cross-sectional geometry [22], over a two-bit span resulting from the superposition of 10000 MC simulations for the entire 1000-bit input stream. The results from MC and PC-based analysis, the latter obtained by inexpensive sampling of the PC expansion (1), are compared side by side showing again excellent agreement.…”

Section: B Nonuniform Differential Linementioning

confidence: 99%

See 1 more Smart Citation

A Comprehensive and Modular Stochastic Modeling Framework for the Variability-Aware Assessment of Signal Integrity in High-Speed Links

Spina

Manfredi

et al. 2018

IEEE Trans. Electromagn. Compat.

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Abstract-This paper presents a comprehensive and modular modeling framework for stochastic signal integrity analysis of complex high-speed links. Such systems are typically composed of passive linear networks and nonlinear, usually active, devices. The key idea of the proposed contribution is to express the signals at the ports of each of such system elements or subnetworks as a polynomial chaos expansion. This allows one to compute, for each block, equivalent deterministic models describing the stochastic variations of the network voltages and currents. Such models are synthesized into SPICE-compatible circuit equivalents, which are readily connected together and simulated in standard circuit simulators. Only a single circuit simulation of such an equivalent network is required to compute the pertinent statistical information of the entire system, without the need of running a large number of time-consuming electromagnetic-circuit cosimulations. The accuracy and efficiency of the proposed approach, which is applicable to a large class of complex circuits, are verified by performing signal integrity investigations of two interconnect examples.

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Section: B Nonuniform Differential Linementioning

confidence: 99%

Section: B Nonuniform Differential Linementioning

confidence: 99%

A Comprehensive and Modular Stochastic Modeling Framework for the Variability-Aware Assessment of Signal Integrity in High-Speed Links

Spina

Manfredi

et al. 2018

IEEE Trans. Electromagn. Compat.

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show abstract

“…밴딩 부분에 tapered 구조를 적용하 여 차동 신호선의 비대칭 문제를 해결하려 하였고 [44] , 최 근에는 그림 21과 같은 트위스트 구조의 차동 신호선이 제안되었다 [45] . [42] (a) Capacitor compensation method [42] (b) 인덕턴스 보상 방법 [43] (b) Inductance compensation method [43] 그림 20.…”

Section: 선 주변의 비대칭 구조들(Guardunclassified

Recent Trends in System-Level EMC Investigation and Countermeasure Technology for RF Interference Due to High-Speed Digital System Noise

구태완¹,

이호성²,

Yook³

2014

The Journal of Korean Institute of Electromagnetic Engineering

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This paper presents recent trends in system-level EMC investigation and countermeasure technology for radio frequency interference (RFI) influenced by noise generated in high-speed digital system. Recently, as the only digital device can perform various roles, there are a variety of EMI/EMC problems between systems. Especially, RFI is now recognized as a major problem, which occurs by EMI caused by the digital system. Therefore, in this paper, recent trends of RFI investigation from component-level to system-level are introduced and analyzed. Furthermore, in order to solve the RFI problem, recent researches are presented and investigated for the occurrences and suppression methods of common-mode noise which is one of the major noise sources in high-speed digital system. Lastly, this paper suggested future research of system-level EMC analysis and countermeasure technology for RFI problems.

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“…To avoid severe signal integrity degradation [1] and high noise levels at the receiving end, threatening the safety of the receiver, a low level of differential-to-common mode conversion is required. Unfortunately, mode conversion noise is induced easily at every discontinuity, and in particular at a bend [2].…”

Section: Introductionmentioning

confidence: 99%

“…One of many possible filter designs that can be applied in the area of the bend to minimize mode conversion is the new structure described in [2], [3], where a very good suppression of common-mode noise was achieved, although less attention was devoted to minimize reflection and losses at the same time. Therefore, in this paper we apply a new multiobjective optimization [4] method to account for these conflicting requirements.…”

Section: Introductionmentioning

confidence: 99%

Time domain analysis of a common-mode suppression filter subjected to a multi-objective optimization

Gazda

Rogier

Ginste

et al. 2012

International Symposium on Electromagnetic Compatibility - EMC EUROPE

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Abstract-An optimal common-mode suppression filter for a bend discontinuity in a pair of differential lines is characterized simultaneously by a large reduction of conversion noise, a small differential mode reflection coefficient and low overall loss, taking into account technology constraints. To find the geometrical parameters of such optimal design, a novel constrained multiobjective optimization method, relying on intermediate surrogate models of several costs, is proposed. A 3D Pareto-front is generated and further, constrained to impose hardware limitations. The front shows trade-offs between the different cost functions, as such allowing to choose an optimal solution from a large set of available layouts. As is often the case, the filter design occurs in the frequency domain. Additionally, in this contribution the method is also validated by means of a time domain analysis, confirming its accuracy and efficiency.

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A Wideband Common-Mode Suppression Filter for Bend Discontinuities in Differential Signaling Using Tightly Coupled Microstrips

Cited by 69 publications

References 14 publications

A Comprehensive and Modular Stochastic Modeling Framework for the Variability-Aware Assessment of Signal Integrity in High-Speed Links

A Comprehensive and Modular Stochastic Modeling Framework for the Variability-Aware Assessment of Signal Integrity in High-Speed Links

Recent Trends in System-Level EMC Investigation and Countermeasure Technology for RF Interference Due to High-Speed Digital System Noise

Time domain analysis of a common-mode suppression filter subjected to a multi-objective optimization

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