[第六课]熟悉HFSS的激励类型和求解器

激励技术综述： 9n${M:F  
   端口是唯一的一种允许能量流入和流出结构的边界条件。你可以把任意的二维面或三维物体的表面定义为端口。在结构中的三维电磁场被计算之前，有必要决定每个端口的激励场类型。HFSS采用任意的端口解算器计算与端口截面相同的传输结构中存在的自然的场模式。 HFSS默认的设定，所有的结构都完全的装入一个导体屏蔽层，没有能量能够穿过屏蔽层。你可以在结构上设定波端口使得能量进入和离开导体屏蔽层。在结构中除了采用波端口（Wave port）外，你还可以应用集总端口（Lumped .. ?R}a,k  
gf8DhiB  

未注册仅能浏览部分内容，查看全部内容及附件请先 登录 或 注册

图片:HFSS求解器.png

X$ZVY2  

Driven Solutions and Driven Options
Modal	For calculating the mode-basedS-parameters of passive, high-frequency structures such as microstrips,waveguides, and transmission lines which are "driven" by a source,and for computing incident plane wave scattering. Network Analysis isthe default and functions as before. CompositeExcitation provides a method for solving fields in a largefrequency domain problem.
Terminal	For calculating the terminal-basedS-parameters of passive, high-frequency structures with multi-conductortransmission line ports which are "driven" by a source. This solution type results in aterminal-based description in terms of voltages and currents. Some modal datais also available. Network Analysis is the default and functions asbefore. CompositeExcitation provides a method for solving fields in a largefrequency domain problem.
Transient	For calculating problems in the time domain.It employs a time-domain ("transient") solver. For Transient yourchoice of Composite Excitation or Network Analysis affectsthe options for the setup. If you select Network Analysis thesetup includes an Input Signal tab forthe simulation. Typical transient applications include,but are not limited to: [list=disc] Simulations with pulsed excitations, such asultra-wideband antennas, lightning strikes, electro-static discharge; [list=disc] field visualization employing short-durationexcitations; [list=disc] time-domain reflectometry.

I=!kPuw   Modal

?I+{S   For calculating the mode-based S-parameters of passive, high-frequency structures such as microstrips, waveguides, and transmission lines which are "driven" by a source, and for computing incident plane wave scattering. Network Analysis is the default and functions as before. vl:~&I&y;R   Composite Excitation provides a method for solving fields in a large frequency domain problem.

zzylt628:[table][tr][td] PIU@}:}  
Modal[/td][td] x|m9?[ !_  
For calculating the mode-based S-parameters of passive, high-frequency structures such as microstrips, waveguides, and transmission lines which are "driven" by a source, and for computing incident plane wave scattering .. (2018-02-06 20:04)   igo9~.  

l:'#pZ4T  
Terminal joI)6c  
[2-n*a(q  
For calculating the terminal-based S-parameters of passive, high-frequency structures with multi-conductor transmission line ports which are "driven" by a source. WO.u{vW]'
 
>e {1e  
This solution type results in a terminal-based description in terms of voltages and currents. Some modal data is also available. X&WP.n)  
~vA{I%z5~  
Network Analysis is the default and functions as before. G%sq;XT61  
Nf([JP% 4  
Composite Excitation provides a method for solving fields in a large frequency domain problem.

zzylt628:Terminal
For calculating the terminal-based S-parameters of passive, high-frequency structures with multi-conductor transmission line ports which are "driven" by a source.
....... (2018-02-06 20:05)  gNEcE9y2  

:rL%,o"  
Transient (j'\h/  
a6LL]_&g  
For calculating problems in the time domain. It employs a time-domain ("transient") solver. For Transient your choice of Composite Excitation or Network Analysis affects the options for the setup. If you select Network Analysis the setup includes an Input Signal tab for the simulation. |@AXW   
BI:Cm/ >  
Typical transient applications include, but are not limited to: AI2XNSV@Yl  
96^aI1:  
Simulations with pulsed excitations, such as ultra-wideband antennas, lightning strikes, electro-static discharge; S[K5ofV  
field visualization employing short-duration excitations; -F
7F 6!s  
time-domain reflectometry.

zzylt628:Transient
For calculating problems in the time domain. It employs a time-domain ("transient") solver. For Transient your choice of Composite Excitation or Network Analysis affects the options for the setup. If you select Network Analysis the setup .. (2018-02-06 20:06)  C?|sQcCE  

(n kg  
Eigenmode |>(Vo@  
ahXcQ9jzFi  
For calculating the eigenmodes, or resonances, of a structure. The Eigenmode solver finds the resonant frequencies of the structure and the fields at those resonant frequencies. Eigenmode designs cannot contain design parameters that depend on frequency, for example a frequency-dependent impedance boundary condition.

zzylt628:Eigenmode
For calculating the eigenmodes, or resonances, of a structure. The Eigenmode solver finds the resonant frequencies of the structure and the fields at those resonant frequencies. Eigenmode designs cannot contain design parameters that depend on fre .. (2018-02-06 20:06)  v#9i|  

l^tRy_T:-  
Characteristic Mode     9Pvv6WyKy  
This option is used for calculating the characteristic modes of a structure. The solution reports the Number of Modes, the characteristic angle and current (amp/meter), the modal significance and quality factor, and the voltage per port based in edit sources weighing. The Selecting Characteristic Modes changes the Solution Setup criteria and dialog. yEB#*}K?  
a
"}ndrc*  
You specify the minimum modal significance (default 0.02). Convergence is based on Max E rather than Max S (default (0.02). \1?'JdN  
v\(6uej^  
Only discrete sweeps are supported. Only the CMA solver is supported. Only lossless boundaries are allowed. Finite conductivity boundaries are allowed but are converted to lossless. The half-space boundary is not allowed.

图片:无标题.png

odJE~\\hw  

在结构中除了采用波端口（Wave port）外，你还可以应用集总端口（Lumpedport）。集总端口对于模拟结构内部端口是很有用处的 'kK}9VKl  

图片:激励类型.png

_d&FB~=  
/4]M*ls