Recent Trends in the Integration of Circuit Optimization and Full-Wave Electromagnetic Analysis

Zutter, D. De; Sercu, J.; Dhaene, Tom; Geest, Jan De; Demuynck, Filip; Hammadi, S.; Paul, Cooper

doi:10.1109/tmtt.2003.820896

Cited by 14 publications

(9 citation statements)

References 33 publications

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“…Hence, integrated solvers, which allow EM/circuit co-optimisation and co-design, are necessary for state-of-the-art high-frequency/high-speed electronic design automation (EDA). The above issues are elaborated in [15] and are summarised in Fig. 1.…”

Section: Em/circuit Co-designmentioning

confidence: 99%

“…Also in [15], an indirect approach to combine EM and circuit simulations is presented. An electromagnetic model database (EMDB) is developed that contains EM simulation results (under the form of S-parameters) of the physical structures, i.e.…”

Section: Em/circuit Co-designmentioning

confidence: 99%

“…in our case the PCB with its printed metallisations. The EM/circuit co-design environment, as proposed in [15], has been implemented in the commercially available EDA framework Advanced Design System (ADS) from Agilent Technologies, Santa Rosa, CA, USA. EM/circuit co-optimisation is typically an iterative process and it requires multiple EM simulations.…”

Section: Em/circuit Co-designmentioning

confidence: 99%

See 2 more Smart Citations

Efficient analysis and design strategies for radio frequency boards dedicated to integrity monitoring of integrated circuits using an electromagnetic/circuit co-design technique

Ginste

Rogier

Zutter

et al. 2010

IET Sci. Meas. Technol.

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Section: Em/circuit Co-designmentioning

confidence: 99%

Section: Em/circuit Co-designmentioning

confidence: 99%

Section: Em/circuit Co-designmentioning

confidence: 99%

See 1 more Smart Citation

Efficient analysis and design strategies for radio frequency boards dedicated to integrity monitoring of integrated circuits using an electromagnetic/circuit co-design technique

Ginste

Rogier

Zutter

et al. 2010

IET Sci. Meas. Technol.

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“…The frequency response of the filter is highly nonlinear in the [3,13] GHz range. Conventional modeling based on nonadaptive uniform-grid is expensive, and the standard algorithm gets trapped in the vicinity off= 9.15GHz as seen in Fig.…”

Section: Proposed Adaptive Sampling Algorithmmentioning

confidence: 99%

“…More recently, the application of adaptive sampling algorithms for EM based modeling has emerged as an active area of research. Investigations in this area have led to adaptive frequency sampling algorithms based on multinomials [3] and rational interpolants [4], as well as novel concepts such as error-based sampling [5] and automatic model generation [6]. For instance, a rational function based model of a microstrip filter is presented in [7].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Adaptive Frequency Sampling for RF and Microwave CAD

Kashi

Devabhaktuni

2006

2006 European Microwave Conference

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In this paper, an enhanced adaptive frequency sampling algorithm for robust electromagnetic (EM) modeling and computer aided design (CAD) is proposed. The algorithm is based on rational interpolation, which leads to more accurate RF/microwave models as compared to other existing interpolants, e.g. spline. Starting with a minimal number of support points i.e. EM data and with lowest-order rational functions, the algorithm systematically produces a rational function model, which meets a user-specified accuracy. In each stage of the algorithm, additional poles and/or zeros are added, and new support points are adaptively selected based on a statistical criterion. The algorithm distinguishes critical regions of an EM component's behavior that need to be densely sampled and uses relatively fewer data in other regions. The advantages of the proposed algorithm are shown via RF/microwave examples.

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The state of the art of microwave CAD: EM-based optimization and modeling

Cheng

Koziel

Bakr

et al. 2010

Int J RF and Microwave Comp Aid Eng

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Abstract-Convergence is a well-known issue for standard space-mapping optimization algorithms. It is heavily dependent on the choice of coarse model, as well as the space-mapping transformations employed in the optimization process. One possible convergence safeguard is the trust region approach where a surrogate model is optimized in a restricted neighborhood of the current iteration point. In this paper, we demonstrate that although formal conditions for applying trust regions are not strictly satisfied for space-mapping surrogate models, the approach improves the overall performance of the space-mapping optimization process. Further improvement can be realized when approximate fine model Jacobian information is exploited in the construction of the space-mapping surrogate. A comprehensive numerical comparison between standard and trust-region-enhanced space mapping is provided using several examples of microwave design problems.Index Terms-Computer-aided design (CAD), electromagnetic (EM) optimization, microwave design, space mapping, trust-region methods.

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Recent Trends in the Integration of Circuit Optimization and Full-Wave Electromagnetic Analysis

Cited by 14 publications

References 33 publications

Efficient analysis and design strategies for radio frequency boards dedicated to integrity monitoring of integrated circuits using an electromagnetic/circuit co-design technique

Efficient analysis and design strategies for radio frequency boards dedicated to integrity monitoring of integrated circuits using an electromagnetic/circuit co-design technique

Enhanced Adaptive Frequency Sampling for RF and Microwave CAD

The state of the art of microwave CAD: EM-based optimization and modeling

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