请问各位，FEKO仿反射面天线，馈源可以利用HFSS中仿真的远场方向图数据导入，请问如何操作？

将HFSS远场计算数据导出，按照FEKO中要求的DAT格式重新生成数据，再用AR卡片导入计算。

谢谢，请你说的详细一些可以吗?
1.HFSS中远场数据如何得到，我仿完后结果中有好多文件，哪个是远场数据?
2.FEKO要求的DAT格式是什么样的?
不胜感谢！

我也要开始用FEKO仿真反射面天线
大家多指点一下吧

恩，是这样的。

1. 首先您要自己去瞭解 HFSS的輸出格式。
最快速的方法是你在 FEKO 李直接求解得到 ffe檔(an *.ffe file (*.ffe file))。然後直接用 AR Card。
2.FEKO要求的DAT格式是什么样的
an external ASCII file
FYI......
14.17 AR card
With this card the radiation pattern of an antenna is used as an impressed source. The
pattern is read from a data file or defined in the *.pre file below the AR card.
This card has a variety of uses, for example, importing measured radiation patterns,
synthesising arrays from the individual patterns of the elements, realising radiation only
within certain sectors, etc. In the MoM/UTD hybrid it is possible to simulate, for example,
the antenna on its own and to save the far field in a *.ffe file. This field is then
imported and used as source in the UTD part which may greatly speed up the ray tracing
computation as there is now only one source point.
• an external ASCII file
With this option, the data is read from the specified external data file. Each line
contains 6 space delimited data fields in the following order:
– The angle ϑ in degrees
– The angle ϕ in degrees
– Amplitude of the field strength EFF
ϑ in V
– Phase of the field EFF
ϑ in degrees
– Amplitude of the field strength EFF
ϕ in V
– Phase of the field EFF
ϕ in degrees
The inner loop should be with respect to the angle ϑ so that the order of the lines
is as follows
ϑ1 ϕ1 · · ·
ϑ2 ϕ1 · · ·
ϑ3 ϕ1 · · · .
..
...
· · ·
ϑI4 ϕ1 · · ·
ϑ1 ϕ2 · · ·
ϑ2 ϕ2 · · · .
..
...
· · ·
ϑI4 ϕI5 · · ·
We conclude this description with an example of a sector radiator. We want to realise an
ideal sector radiator, which radiates 10 Watt horizontal polarisation in the angular region
defined by -70◦ ≤ ϕ ≤ 70◦ and 75◦ ≤ ϑ ≤ 105◦. Since the angle range of the imported
pattern must be positive one may define separate sources for the regions 0◦ ≤ ϕ ≤ 70◦
and 290◦ ≤ ϕ ≤ 360◦. A more elegant solution is to define a single pattern in the range
0◦ ≤ ϕ ≤ 140◦ and rotate it by -70◦ around the z axis. The complete radiation pattern
is defined in the following input file (note that only horizontal polarisation, i.e. EFF
ϕ , is
required):
** Application example for the AR card: Sector radiator
** No other structures considered
EG 1 0 0 0 0
** Set the frequency
FR 1 0 100.0e6
** Specified radiated power
PW 1 10.0
** Define the sector radiator
AR 0 3 2 2 1.0 0.0 0.0 0.0 0.0 0.0 0.0 -70
** Theta Phi E_theta E_Phi
75 0 0 0 1 0
105 0 0 0 1 0
75 140 0 0 1 0
105 140 0 0 1 0
** Check: Compute the full 3D radiation pattern with 5 deg stepping
FF 1 37 73 0 0.0 0.0 5.0 5.0
** End
EN
==================================================================================
• an *.ffe file (*.ffe file)
With this option, the radiation pattern is read from a *.ffe file created with FEKO
(using the DA and FF cards). All the data of the radiation pattern (angles and
field values) are determined from the file. The user should ensure that, for example,
the frequency is correct. If an antenna is analysed with FEKO, the far field can be
exported to the *.ffe file using the commands (for 5◦ angle increments)
DA 0 0 1 0 0
FF 1 37 73 0 0 0 5 5
Note 37 points are used for ϑ and 73 for ϕ to ensure that the radiation pattern is
closed (see also the comment above).
This can then be imported as a source into another model with the command
AR 0 1 1 37 73 1.0 0.0 0.0 0.0 0.0 ...
... 0.0 0.0 0.0 "file.ffe"

了解了解了解了解