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19 Threads found on edaboard.com: **Field Current Density**

Is there an easy way to correlate surface **current** **density** data with corresponding magnetic **field** data in 3D...
I can easily get access to both but there is no correlation of indexes...
I understand that H is used to calculate the surface **current** on PEC bounders but to get the H for the given **current** one (...)

Electromagnetic Design and Simulation :: 03-23-2016 12:11 :: MathewOrman :: Replies: **1** :: Views: **446**

I had one Question regarding the scale values of surface **current**s in CST. Why is it showing it in terms of Ampere / meter ?Ampere/ meter in reality represents H **field**. I know H **field** and **current** are related through Ampere circuital law but still the unit for surface **current** should be in Ampere?
Why is CST (...)

RF, Microwave, Antennas and Optics :: 05-08-2015 12:21 :: creative_1 :: Replies: **1** :: Views: **739**

Sonnet gives Far **field** parameters only, not gain.
If you know s-parameters, it means that you know the impedance,vswr etc.. what is the problem..??

RF, Microwave, Antennas and Optics :: 02-16-2015 04:17 :: BigBoss :: Replies: **11** :: Views: **686**

Hi!
The model used in my HFSS simulation is stripline, and I'd like to integrate the surface **current** **density** (Jsurf) over a line which is defined as the contour path around the conductor. However, I don't know how to make it.
I've supposed 2 possible solutions.
1) integrate directly in HFSS with **field** Calculator. However, I've read (...)

Electromagnetic Design and Simulation :: 10-06-2014 12:10 :: curry :: Replies: **0** :: Views: **1301**

Hi, can anyone tell me how to simulate a quantum well in TCAD and to see the **current** **density** while applying electric **field** to it?

Software Problems, Hints and Reviews :: 11-08-2013 08:19 :: Shubhasree :: Replies: **1** :: Views: **625**

Hi,
To get the surface **current** **density** **field**:
1) Select all the components of your design in the project manager.
2) Right click and then click on 'Plot **field**s'
3) Then select 'J'
4) You can then select Mag_JSurf, ComplexMag_JSurf or Vector_JSurf as per your requirement.
Regards
Twisha

RF, Microwave, Antennas and Optics :: 02-13-2013 10:05 :: Twisha :: Replies: **1** :: Views: **1553**

but in "electromagnetic **field** theory fundamentals" by hirizogulu book.they are solving that zero volume **current** **density** for conduction **current** **density**. please explain

Elementary Electronic Questions :: 01-20-2013 10:16 :: rameshbalan :: Replies: **4** :: Views: **784**

The **current** is flowed because of high electric **density** **field** at the channel because of high electric **field**,the **current** flows.
In saturation,the **current** always flows but **current** of fixed magnitude.

ASIC Design Methodologies and Tools (Digital) :: 08-03-2012 06:14 :: maulin sheth :: Replies: **1** :: Views: **848**

Hi, everyone,
I am using Maxwell 2D&3D from Ansoft to do transformer design. I can use it to plot different figures, such as energy distribution, H **field**, **current** **density** and so on, but I don't know how to calculate loss (copper loss and core loss). Do you know how to do this?
Thank you very much

Electromagnetic Design and Simulation :: 07-06-2012 06:23 :: ramin68 :: Replies: **0** :: Views: **921**

What will happen if, In a DC generator,the resistance of the **field** winding is increased??
will it increase the output voltage or will not affect it at all ?? :?:

Elementary Electronic Questions :: 02-22-2012 14:45 :: kumeemb :: Replies: **2** :: Views: **982**

can anyone help me exporting **field** data from hfss
i know there are several threads similar
but here i have a different problem
i need to export **field** data (actually **current** **density**)
to matlab
but i need to work with variables
im making optimization for an antenna structure
and the optimization in made in matlab (...)

Elementary Electronic Questions :: 11-09-2011 10:35 :: SmOkImOkEy :: Replies: **0** :: Views: **1238**

Electric Magnetic **field**s are 3-dimensional vectors.
For example, **current** **density** vector is J=(Jx, Jy, Jz).
Electric **field** vector generated from this J is expressed as
E=(Ex, Ey, Ez)=*J
This matrix form green fuction, is called as tensor green fuction

RF, Microwave, Antennas and Optics :: 05-16-2011 13:48 :: pancho_hideboo :: Replies: **1** :: Views: **2023**

Hello everybody,
I am trying to make a far-**field** source in CST MWS, with the incident E **field** as follows:
E_inc= {Sin(phi_i) , - Cos(phi_i)} exp
Then calculate the absolute **current** **density** on a patch antenna surface.
How can I input such an incident in CST MWS or even HFSS?
Thanks in advance!

Electromagnetic Design and Simulation :: 03-23-2011 07:25 :: vodka.guc :: Replies: **1** :: Views: **1400**

you may start with 1/10 rule (10 cells per wavelength of maximum frequency) but which may not converge to correct result. After initial simulation see what is happening at that minimum dimensional part. if you see major variation of **field** **current** near the minimum dimensional part then you may need to increase the mesh **density**. If total mesh (...)

Electromagnetic Design and Simulation :: 11-11-2010 09:02 :: g86 :: Replies: **5** :: Views: **11280**

To generate more magnetic **field**s with same **current**.
--
Amr Ali

Elementary Electronic Questions :: 04-07-2010 13:19 :: amraldo :: Replies: **3** :: Views: **797**

Hi, everyone,
I am using Maxwell 2D&3D from Ansoft to do transformer design. I can use it to plot different figures, such as energy distribution, H **field**, **current** **density** and so on, but I don't know how to calculate loss (copper loss and core loss). Do you know how to do this?
Thank you very much!
Michaelis

Electromagnetic Design and Simulation :: 02-17-2010 17:15 :: michealis :: Replies: **0** :: Views: **3142**

Hi Ravi,
You can use **field** monitor for measuring H **field** . Near **field** is mainly due to magnetic coupling. H **field** will give you a measure of near **field** distribution.
I guess you will be using some kind of Loop antenna, you can measure the surface **current** and magnetic energy (...)

RF, Microwave, Antennas and Optics :: 07-07-2008 01:33 :: GVVIN :: Replies: **1** :: Views: **1182**

I use HFSS **field** Calculator to export surface **current** **density** on a patch. When I click the Export button, always an error occurs. And if I click the Write button, a ?*.reg? file can be get, but the coordinates of the **current** data are not shown, is there anyone can help me?

Electromagnetic Design and Simulation :: 08-31-2007 01:28 :: lhsusan :: Replies: **0** :: Views: **2032**

The way is reduce the **current** **density** where it's higher and reduce electric **field** where it's higher.
Usually the connection between coax connector and cavity is a zone with high **current** **density**, use very thick wire.
The zones at High Zo are also interested to High |E| **field**. A thin sheet (...)

RF, Microwave, Antennas and Optics :: 08-21-2004 12:00 :: sergio mariotti :: Replies: **2** :: Views: **1240**

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