ANSYS HFSS 2020© PERA Corporation Ltd. All rights reserved. ANSYS HFSS 2020 新功能 2 2020 R1 –HFSS HFSS 新功能: •3D 天线阵列组件 •HFSS SBR+求解器新功能

© PERA Corporation Ltd. All rights reserved.

ANSYS HFSS 2020新功能简介


2ANSYS HFSS 2020 新功能

2020 R1 – HFSS

HFSS 新功能:

• 3D 天线阵列组件

• HFSS SBR+求解器新功能

• 前/后处理新功能

• EMI/EMC 功能改进



3D 天线阵列组件


5G 毫米波天线阵列计算

4

256 Elements

4X64 Element sub-arrays

• 5G 毫米波阵列• 仿真时间< 2 小时 128 核• 3D 元件 DDM 技术


建立3D 天线阵列组件

5

• Requires periodic boundary designation Formerly Master/Slave pairs

• Introducing Lattice Pair boundary Assigned on two parallel faces

No more manual U/V designation

Auto identification for unambiguous lattice pair faces


天线模板

6

• Color Coded

• Rotation

• Array operationo Expand

Layerso Add Columnso Add Rowso Delete

Columnso Delete Rows


完整模型视图

• Option to render the array virtual cell in shaded mode

• Not limited to wireframe view of virtual cells

7


16 x 16 阵列（带馈电网络）• 432 单元阵列模板

• 26 个独立组件

• 全阵模型

• 区域内的场强分布


16 x 16 阵列常规仿真结果与DDM对比

9

• Compare explicit, direct matrix

solve with 3D Comp DDM

• Excellent agreement in far field

• 3D Comp DDM

• 67% savings in memory

• 37% savings in simulation time



HFSS SBR+求解器: 天线布局-爬行波(Creeping Waves)


天线布局-爬行波(Creeping wave )

• An additive scattering mechanism

• For current-based antennas integrated directly onto

a convex conducting platform

• “Paints” PO currents in shadow on platform

sourced from antenna

• Why is it needed?

• Due to antenna proximity to the platform, the

antenna is unable to “paint” sufficient ground

currents, leading to inaccurate far fields

• Creeping wave physics….

• Removes the unphysical PO discontinuity

at the lit-shadow transition (artificial diffraction

boundary

• Produces more accurate installed far field

patterns

1

Wire monopole on PEC cylinder

SBR

(PO) region

Artificial diffraction

boundary due to SBR rays

alone

Creeping Rays

Wire

monopole


• Supported Excitations

• Parametric current-based (SBR+) antennas with a ground plane

• Wire monopole

• Horizontal dipole

• Cross-dipole over a ground plane

• Slot

• Near Field links

• FE-BI hybrid regions: Equivalent current based sources close to a metallic platform

• Scenarios

• Induce currents in shadow regions for antennas close to platforms

• Coupling between non “Line-of-Sight” antennas on convex surfaces, e.g. airplane fuselage

1

Wire monopole on PEC cylinder

SBR

(PO) region

Creeping Rays

Wire

monopole

Wire Dipole

Wire Monopole Slot (CSRC)

Wire Cross

Dipoles

天线布局-爬行波(Creeping wave )


HFSS-SBR+

MoM

1 GHz monopole mounted on Global Hawk

HFSS-SBR+CW

MoM

HFSS SBR+ 爬行波(Creeping wave )应用


1.2GHz Monopole Antenna on Airplane

HFSS SBR+ 爬行波(Creeping wave )应用



HFSS前/后处理新功能


3D 建模新功能

• Native component parameterization

• Component variables including dependent variables

• Datasets

• Lightweight geometry for Icepak

• STL import

• Heal and reduce triangle counts on import

• Face Coordinate system for lightweight objects

• Modeler Cleanup Feature

• Prompt for cleanup during save if there are parts

with long history

• Cleanup unused coordinate systems


图形与后处理

• Improved transparency rendering in

Modeler and 3D reports

• Overlay of Near Field contour plots in

Modeler

• Animation

• View independent image exports in

scripting

• Create new orientations

• Specify orientation in export function

• Cumulative Distribution Function in

Reporter (Beta)


激励源分组(Source Group)

1

• Turn on a subset of edit sources• Report specific outputs for source

group only

• Use as a context in the Far Fields plot• Example: Separate far field plots for

5G MIMO sub-arrays defined as source groups


近场磁场H与Poynting矢量

• H and Poynting field for plot and export

• Poynting field for 5G power density calculation

19


应用: 5G毫米波功率密度(PD)计算

2

• 4单元圆极化毫米波贴片阵列Poynting vector amplitude scanning

over different beam angles

• Parasitic patch currents

• Excitation phase animation

• 20° element-by-element phase offset

Near field planes can overlay in modeler

and may exist outside the solution region


近场应用Gregorian Reflector

PO FEBI

IE

• Extract fields between

hybrid regions


近场应用Fields outside a FEBI Solution domain

1GHz Blade Antenna (FEBI) on Helicopter (PO)


选择3D物体或表面(Face List)保存场数据

23

• Far and local field plots and calculation based on selection

• Save disk space e.g. “dummy” ABC for antenna analysis

• General tab, Solution setup

• Example: Potter Horn model

• Save fields for ABC faces and Cut plane objects only

• 37% savings in memory on disk for selective save fields


24ANSYS HFSS 2020新功能

EMI/EMC 功能改进


HFSS 2020R1 – EMI/EMC 3D 部件

25


HFSS 2020R1 – EMI/EMC


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ANSYS HFSS 2020© PERA Corporation Ltd. All rights reserved. ANSYS HFSS 2020 新功能 2 2020 R1 –HFSS HFSS 新功能: •3D 天线阵列组件 •HFSS SBR+求解器新功能