4篇
您的检索式：作者名="Shunchuan Yang"
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| 1 | An Analytical Method for Calculating the Shielding Effectiveness of an Enclosure with an Oblique Rectangular Aperture显示文摘An efficient analytical method is proposed to calculate the Shielding effectiveness(SE)of an enclosure with an oblique rectangular aperture.This enclosure was first decomposed into two ones with horizontal rectangular apertures through mirror image and Green function theories.The SE of each decomposed enclosure was calculated by the Robinson’s method.The relationship between the SE of the original cavity and those of the decomposed ones was also derived analytically.The SE of the original cavity could be directly obtained from this analytical relationship.The accuracy of the proposed method was validated with measurements and the Transmission line matrix(TLM)solver.The results show that the efficiency was largely improved compared with the TLM solver. | SU Donglin LIU Hongyi YANG Shunchuan ZHAO Zihua SUI Donghai | 2019 | Chinese Journal of Electronics2019，28，4： | 5 |
| 2 | Adaptive Maxwell’s Equations Derived Optimization and Its Application in Antenna Array Synthesis显示文摘In this paper,a self-adaptive method for the Maxwell’s Equations Derived Optimization(MEDO)is proposed.It is implemented by applying the Sequential Model-Based Optimization(SMBO)algorithm to the iterations of the MEDO,and achieves the automatic adjustment of the parameters.The proposed method is named as adaptive Maxwell’s equations derived optimization(AMEDO).In order to evaluate the performance of AMEDO,eight benchmarks are used and the results are compared with the original MEDO method.The results show that AMEDO can greatly reduce the workload of manual adjustment of parameters,and at the same time can keep the accuracy and stability.Moreover,the convergence of the optimization can be accelerated due to the dynamical adjustment of the parameters.In the end,the proposed AMEDO is applied to the side lobe level suppression and array failure correction of a linear antenna array,and shows great potential in antenna array synthesis. | Donglin Su Lilin Li Shunchuan Yang Fei Wang | 2021 | China Communications2021，18，5： | 1 |
| 3 | A new optimization algorithm applied in electromagnetics——Maxwell’s equations derived optimization(MEDO)显示文摘In this paper,a novel global optimization algorithm,named as Maxwell’s equations derived optimization(MEDO),is proposed.Using the Maxwell’s equations to analyse the behaviors of the timevarying current,the Ampere force is obtained from Fleming’s left hand rule.MEDO introduces an‘Ampere force’term,which is derived from Maxwell’s equations and is rigorous in physics,to drive the variables to the global optimal solution in the search space.In addition,introducing‘gravity’to MEDO can increase the stability of the optimizations.11 classical benchmarks are tested,and results show that MEDO can always converge to numerical optimal solutions.To evaluate the proposed MEDO in solving the electromagnetic problems,four practical engineering applications are considered including the linear antenna array synthesis,frequency selected surface optimization,numerical dispersion reduction for finite-difference method,and parameters extraction of typical waveform.These examples are significant in electromagnetics,but tough to be solved because of their high dimensionality and strong nonlinearity.Numerical results show that MEDO can outperform several classic optimization methods,like wind driven optimization(WDO)and particle swarm optimization(PSO).Therefore,the electromagnetics-inspired MEDO is robust and of great potential in solving the electromagnetic optimization problems. | Donglin SU Lilin LI Shunchuan YANG Bing LI Guangzhi CHEN Hui XU | 2020 | Science China(Information Sciences)2020，63，10： | 1 |
| 4 | An Accurate and Efficient Approach for High-Frequency Transformer Parameter Extraction显示文摘Accurate parasitic parameter extraction of high-frequency transformers is one of the key techniques to efficiently design a Switched-mode power supply(SMPS). An approach to accurately and efficiently extract the parasitic parameters of high-frequency transformers is proposed. The high-frequency transformer is first de-composed into first-order RL and second-order RLC circuits according to inherent step response characteristics. Through the measured discharging pulse and damped oscillation responses of the high-frequency transformer excited by a square wave, we can extract the equivalent circuit parameters through fitting the responses with Particle swarm optimization(PSO). The equivalent circuits of the high-frequency transformer with the desired parameters are obtained for the SMPS design. We validate the effectiveness and accuracy of the proposed method with simulations and measurements. | SU Donglin ZHU Kaixiang XU Hui PENG Zhenzhen YANG Shunchuan LIU Yan | 2019 | Chinese Journal of Electronics2019，28，5： | 0 |
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