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Ansoft HFSS 11.0
软件简介—SoftWare Description: Ansoft HFSS 11.0 三维全波电磁场仿真

::::::English Description::::::

HFSS?utilizes a 3D full-wave Finite Element Method (FEM) to compute the electrical behavior of high-frequency and high-speed components. With HFSS, engineers can extract parasitic parameters (S, Y, Z), visualize 3D electromagnetic fields (near- and far-field), and generate Full-Wave SPICE? models to effectively evaluate signal quality, including transmission path losses, reflection loss due to impedance mismatches, parasitic coupling, and radiation.

HFSS v11 features new higher-order, hierarchical basis functions combined with an iterative solver that provides accurate fields, smaller meshes, and more efficient solutions for large, multi-wavelength structures. A new fault tolerant, high-quality finite element meshing algorithm further enhances HFSS’s ability to simulate very complex geometric models, including models imported from 3D CAD environments. HFSS is dynamically linked with Nexxim? and Ansoft Designer? to create a powerful electromagnetic-based design flow. This design flow enables users to combine complex, highly nonlinear circuits with transistor-level detail and 3D full-wave accurate component models to solve challenging high-performance electronic designs.


HFSS?is the industry-standard software for S-parameter, Full-Wave SPICE?extraction, and 3D electromagnetic field simulation of high-frequency and high-speed components. Engineers rely on the accuracy, capacity, and performance of HFSS to design on-chip embedded passives, IC packages, PCB interconnects, antennas, RF/microwave components, and biomedical devices.

HFSS improves engineering productivity, reduces development time, and better assures first-pass design success. HFSS v11 can solve complex geometries 2-5X faster and use half the memory, allowing users to expand beyond what they ever thought possible with simulation technology. Additionally, HFSS v11 includes new automation features, user-interface refinement, and data linking capability, making it easy to design, simulate, and validate complex high-performance RF, microwave, and millimeter-wave devices, high-speed channels, and complete power-delivery systems in modern, high-performance electronics.

New in HFSS v11 


 
New higher-order hierarchical basis functions combined with an iterative solver provides accurate fields, smaller meshes, and efficient solutions for large multi-wavelength structures.
Enhanced port solver: HFSS can simulate lower frequencies than before and will have a lower noise floor.
Floquet Ports: these periodic ports enable designers of phased-array antennas and frequency-selective surfaces to obtain separate fields into modes for better understanding and examine phase information for each mode.
Optimetrics?now offers genetic algorithm
New Auto-assign capability for terminals
Complex geometries solve 2-5X faster using half the memory with the new v11 fault tolerant, high-quality finite element mesher
Expanded Distributed Solve Option
Automatic Distributed Solve of discrete and interpolating frequency sweeps
Now available for parametric sweeps, optimization, sensitivity analysis, and statistical analysis
Improved Dynamic Links SIwave-HFSS and HFSS-HFSS
Link is now based on both E- and H-field; greater accuracy in case of enforced field in HFSS-HFSS link
 


经过二十多年的发展,HFSS以其无以伦比的仿真精度和可靠性,快捷的仿真速度,方便易用的操作界面,稳定成熟的自适应网格剖分技术使其成为高频结构设计的首选工具和行业标准,已经广泛地应用于航空、航天、电子、半导体、计算机、通信等多个领域,帮助工程师们高效地设计各种高频结构,包括:射频和微波部件、天线和天线阵及天线罩,高速互连结构、电真空器件,研究目标特性和系统/部件的电磁兼容/电磁干扰特性,从而降低设计成本,减少设计周期,增强竞争力。

射频和微波器件设计  
HFSS能够快速精确地计算各种射频/微波部件的电磁特性,得到S参数、传播特性、高功率击穿特性,优化部件的性能指标,并进行荣差分析,帮助工程师们快速完成设计并把握各类器件的电磁特性,包括:波导器件、滤波器、转换器、耦合器、功率分配/和成器,铁氧体环行器和隔离器、腔体等。
  
   
电真空器件设计  
在电真空器件如行波管、速调管、回旋管设计中,HFSS本征模式求解器结合周期性边界条件,能够准确地方针器件的色散特性,得到归一化相速与频率关系,以及结构中的电磁场分布,包括H场和E场,为这类器件的设计提供了强有力的设计手段。 
   
天线、天线罩及天线阵设计仿真  
HFSS可为天线及其系统设计提供全面的仿真功能,精确方针计算天线的各种性能,包括二维、三维远场/近场辐射方向图、天线增益、轴比、半功率波瓣宽度、内部电磁场分布、天线阻抗、电压驻波比、S参数等。 
   
目标特性研究和RCS仿真  
  
   
高速互连结构设计  
随着频率的不断提高和信息传输速度的不断提高,互连结构的寄生效应对整个系统的性能影响已经成为制约设计成功的关键因素。MMIC、RFIC、或高速数字系统需要精确的互联结构特性分析参数抽取、HFSS能够自动和精确地提取高速互联结构、片上无源不见及版图寄生效应。 
   
光电器件仿真设计  
HFSS的应用频率能够达到光波波段、精确仿真光电器件的特性。 


2007年6月5日,在夏威夷举行的MTT-S国际微波座谈会上,Ansoft公司隆重发布了其旗舰产品高频结构仿真器的最新版本HFSS v11。新版本应用了多项新技术,在仿真精度、能力和性能等各方面有了很大飞跃。HFSS v11的电磁场求解器采用了更高阶的基函数,与迭代法矩阵求解技术相结合,对于电大尺寸结构问题的求解,网格数量更少,求解更精确和高效。HFSS还采用了新的容错网格剖分技术,能够生成更高质量的有限元网格,与之前版本相比,在仿真非常复杂的模型时不但内存消耗降低了一半,而且速度提高了2至5倍。
 
“HFSS v11中采用的新技术使我们的客户能够从容地应对那些在过去的版本中因为电尺寸过大而无法求解的问题,” Ansoft公司董事会主席兼首席技术官Zoltan Cendes博士说,“对于高频高速的设计者们而言,新版本能够为他们在研究结构电磁特性时提供前所未有的,对尺寸、方位、材料特性参数和频率等参数在更大的范围内进行设计空间探索的能力。”
HFSS是三维全波电磁场仿真的行业标准工具,广泛应用于高性能电子设备和器件的设计,包括射频/微波元件、片上无源器件、PCB互联结构、天线和IC封装等,这些电子产品的重要的特点是向着便携化、小型化发展,同时应用频率和速度越来越高。
HFSS能够与频域/时域的电路仿真器Nexxim和Ansoft Designer动态链接,提供了方便的原理图集成与端到端设计与仿真数据管理能力,建立了功能强大而高效的基于电磁场的设计流程。HFSS提供的三维结构高精度全波器件模型,能够直接嵌入Ansoft Designer/Nexxim中,与复杂的强非线性晶体管级电路结合在一起,进行电路、系统和电磁场协同设计与仿真, 实现高性能的电子设计。
HFSS v11的主要功能增强包括:
-- 求解器中增加更高阶的基函数求解
-- 迭代法矩阵求解器
-- 改进了端口求解器,支持Floquet 端口
-- 优化算法中增加了遗传基因算法(Genetic algorithm)
-- 自动定义终端
-- 容错技术及高质量的有限元网格生成算法
-- 分布式求解(DSO)支持插值扫频、参数化扫描、敏感度分析和统计分析
-- 改进了用户界面和动态链接功能
HFSS v11支持的操作系统包括:
Microsoft Windows(R) 2000 Professional, Windows XP Professional, Windows XP x64 Edition, Windows Server, Red Hat Enterprise Linux(R) v3, Solaris(R) 8 and Solaris 9. 详细信息,请联系当地Ansoft代表处
关于HFSS
HFSS是三维结构高频/高速器件电磁场仿真,抽取S参数和全波SPICE参数的行业标准仿真设计工具,广泛地应用于嵌入式片上无源器件、PCB互连结构、天线、射频/微波器件及高频IC封装的设计中。


 

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