联系电话:021-54265138
【登录】【注册】
您现在的位置:首页 > 产品中心 >Simberian
Simbeor介绍

 

   

 

Simberian公司由电磁场专家Yuriy Shlepnev成立于2006年,Simbeor专注给工作在6-100Gbps的高速PCB封装互联提供设计仿真解决方案。Simbeor中包含3D电磁场全波求解器,在高达50GHz的频率内与测试结果保持高度一致性,具有准确、快速、易用等优点。Simbeor是业内第一次将测试数据引入到仿真设计中的工具,可以优化设计传输线、过孔或其他关键结构。Simbeor对信号通道互联的前仿、后仿、时序预算、宏模型创建、材料参数提取、去嵌等提供一站式的解决方案。Simbeor所生成模型基于先进的3D全波算法、对比实测数据来保证其准确性,在将仿真结果与实际测量数据进行对比的竞争中Simbeor处于绝对优势地位。

 

功能特点

  1. 支持到100Gbps,仿真分析结果与测试数据匹配;

  2. 独特的材料参数提取算法,基于GMS参数的插入损耗和相位延迟拟合算法,Dk、Df、导体表面粗糙度参数提取;

  3. 过孔、传输线的快速求解器,能够根据目标自动优化设计结构;

  4. 支持重复结构传输线再利用;

  5. 快速准确的前后仿电磁场求解器,支持三种求解器:3DML、3DTF、SFS;

  6. 快速的频域分析;

  7. 自动去嵌(Automatic de-embedding);

  8. S参数质量检查修正,修正互易性、因果性、无源性;

  9. 在时频域分析中提供独特的宏模型,将S参数转换为RCM模型,以减小模型尺寸,提高仿真速度;

 

Simbeor 信号仿真解决方案框图

 

 

典型应用

 

Simbeor的S参数建模与测试结果比对

   Simbeor被证明在高达50GHz的范围有效,案例所用的PCB板是Wild River公司的CMP-28 测试验证板,通过网络分析仪获得的S参数与Simbeor仿真分析获得的S参数结果高度匹配。该单板也是曾经用于ANSYS测试验证HFSS等仿真工具的经典验证板。CMP-28 测试验证板可以在市面上购买得到,初学者可以通过将仿真结果与测试结果进行比对,以验证仿真分析操作是否正确。更多详情可参考Wild River官网:https://wildrivertech.com/cmp-28

 

Simbeor的3D电磁场全波求解器

通过3D电磁场全波求解器可以计算出差分过孔的空间电场分布,磁场分布,电流密度分布,位移电流密度分布,能量传播方向。

 

 

通过3D电磁场全波求解器可以计算传输线的空间电场分布,磁场分布,电流密度分布,位移电流密度分布,能量传播方向,从而为PCB提供设计约束参考。

 

 

 

Simbeor的SItune自动优化工具的应用

通过simbeor中的SItune工具自动优化电容下方挖空区域的大小,可提升整个通道的连续性。如下图设计优化前后的TDR测试对比显示,通过电容下方的电源平面挖空优化可以很好的改善通道的信号质量,在此基础上添加屏蔽过孔,通道信号质量得到进一步改善。

 

Simbeor的功能模块

Touchstone Analyzer

Touchstone Analyzer (TA) tool is the industry-first tool designed for automation of S-parameters quality assurance and all macro-modeling tasks. It automatically finds all your Touchstone models on your computer, estimates and visualizes quality metrics of the models (passivity, reciprocity, causality), quickly plots data from selected files, builds macro-models for groups of selected Touchstone files and converts them into either broad-band SPICE macro-models or back into improved Touchstone models. 

Via Analyzer

Via Analyzer (VA) is the industry-first via-hole design automation tool. It enables synthesis of transparent via geometry for any type of vias (through, blind, buried, back-drilled, micro-vias,…) and geometry for SMA launches. Via Analyzer provides environment to define complete geometry for single-ended and differential vias with interactive view and fast estimation of via performance to make it less reflective. Frequency-dependent via-hole impedance in Via Analyzer is estimated with the fast electromagnetic analysis (plane solver). Defined via geometry can be transformed into 3D circuit for further and more accurate electromagnetic analysis and optimization in SiTune tool.

Linear network analysis

Simbeor contains powerful set of linear network solvers to connect or subtract multiport circuits, extract Generalized Modal S-parameters (GMS-parameters), extract test fixture S-parameters for de-embedding and compare two sets of S-parameters. In general, a linear network circuit or a circuit of “LinearNetwork” type is an arbitrary connection of multiports, transmission line segments, terminators and other linear network element to support end-to-end de-compositional analysis of interconnects

Simbeor 3DML

Simbeor contains 3D full-wave solver for multilayered circuits Simbeor 3DML. It is frequency-domain hybrid solver with the simulation technology based on a combination of the Method of Lines and Trefftz Finite Element Method. Method of Lines is used in Simbeor 3DML solver as the base of the simulation algorithm. It allows accurate simulation of multilayered dielectric media in a very efficient way and reduces the problem to surfaces of the metal objects and to cutouts in solid metal planes. Method of lines was extended to simulate interior of metal layers to account proximity and skin-effect in the metal planes without meshing the planes. Proximity and skin-effect in metal strips are simulated with the Trefftz finite elements. Trefftz elements are used to mesh a cross-section of a strip and to reduce the problem to differential admittance of the strip interior visible from the surface of the strip. It provides asymptotically correct solution at low and high frequencies as well as at the frequencies of transition to skin-effect. It also allows simulation of strips composed of multilayered metals (surface conductor finish). In addition to broadband models for metal loss, the solver contains causal frequency-dependent models for dielectrics. Method of simultaneous diagonalization is used to extract modal and RLGC parameters of transmission lines and to de-embed discontinuities or transitions in those lines. 

Simbeor 3DTF

Simbeor contains a general-purpose 3D full-wave solver Simbeor 3DTF. It is frequency-domain solver with the simulation technology based solely on the Trefftz Finite Element (TFE) method (also known as the “Ultra-Weak Discontinuous Galerkin’s Wave Elements” . TFE method is the finite element method based on the wave expansion of electromagnetic fields inside elements and either scattering or admittance matrix formulation (element descriptor and final matrix type can be either scattering or admittance). Electromagnetic field computed within the element is always exact solution of the Maxwell’s equations. Though, it is an approximation of the boundary value problems (problem with all boundary conditions imposed. Such approach allows accurate simulation of any media that has solution of Maxwell’s equation in form of plane waves (isotropic, anisotropic, bi-anisotropic, ferrites and so on). Any type of dielectric, conductor and semi-conductor are meshed and solved in the same way – no differences. Trefftz element size within dielectrics and conductors may be comparable or even greater than wavelength or skin depth without the loss of accuracy in many problems. Trefftz elements within conductive and semi-conductive materials provide asymptotically correct solution at low and high frequencies as well as at the frequencies of transition to skin-effect. It makes possible to solve some problems over six decades of frequency bandwidth with the same mesh in one frequency sweep. Simbeor 3DTF solver naturally supports all causal frequency-dependent models for conductors and dielectrics described in the “Models of materials” chapter. The first version uses hexagonal elements and structured or adaptive Cartesian mesh. Method of simultaneous diagonalization is used to extract modal and RLGC parameters of transmission lines and to de-embed discontinuities or transitions in those lines.

Simbeor SFS

Simbeor contains 2D quasi-static field solver for multilayered transmission lines Simbeor SFS. It extracts frequency-dependent modal and RLGC parameters of multi-conductor transmission lines in multi-layered media with the Method of Moments solution. It automatically meshes surface of the conductors as well as boundaries between dielectrics with different properties. Simbeor SFS solver is much faster then Simbeor 3DML for cross-sections with multiple strips and more accurate for strip lines, nearly square and trapezoidal strips. It meshes properly trapezoidal strips. Unique property of Simbeor SFS solver is that it supports all dispersive dielectric (except anisotropic) and roughness models available in Simbeor. It can be effectively used for fast material identification. Though, it does not support multilayered conductor model (plating) and roughness is common for all conductors and should be defined in conductor properties (ignored if re-defined in stackup). The solver is quasi-static because of the solution does not include the high-frequency dispersion that takes place in micro-strip lines (higher concentration of fields in dielectric with higher dielectric constant at high frequencies).

ICN Analyzer

 

Simbeor ICN Analyzer tool is designed to compute Integrated Crosstalk Noise (ICN) as defined in IEEE Std. 802.3ba and some other standards. It also compares ICN and IL at the half data rate frequency with compliance mask. 

Transmission line

& via-hole wizards

Quickly build transmission line and via hole

Violation Browser

 

Violation Browser is a tool to visualize output from EMSAT SI/PI rule checker.

GMS-parameters extraction

 

GMS-parameters can be effectively used for the broadband material model identification

SPP Analyzer

 

SPP Anayzer tool to extract Gamma from two TDT or pulse measurements

ICN Analyzer

 

Simbeor ICN Analyzer tool is designed to compute Integrated Crosstalk Noise (ICN) as defined in IEEE Std. 802.3ba and some other standards. It also compares ICN and IL at the half data rate frequency with compliance mask. 

de-embedding

 

 

BoardAnalyzer

 

 

 

版权所有:上海东好科技有限公司,不得复制或转载
地址:上海市宜山路829号新 海博大厦408室
咨询热线:021-54265138
电子邮箱:info@eastwell.com.cn