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## Finite Field |

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total field scattered field , near field far field matlab , field field fdtd , near field far field code

38 Threads found on edaboard.com: **Finite Field**

Hi,
first off all you need to understand the Radiation Boundary you use.
The thing you want to simulate is the far **field** characteristics of your antenna in an infinitly large air box. As this cannot be designed you put the radiation boundary at the end of a **finite** airbox. This boundary is shall absorb all incoming waves but to work well it must be

Electromagnetic Design and Simulation :: 11-14-2016 11:30 :: Daniel_G :: Replies: **2** :: Views: **575**

Usually, simulation tools allow visualizing the **field**s that are simulated.
For example, for capacitive coupling, electric **field** lines would tell where capacitance is coming from (in **finite** element or **finite** difference method based tools), or a surface charge density (in boundary element tools).
Very often just viewing the (...)

Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 11-13-2016 02:21 :: timof :: Replies: **2** :: Views: **612**

You could also apply a "**finite** conductivity" boundary and set the properties to be that of copper.

Electromagnetic Design and Simulation :: 10-08-2015 14:40 :: PlanarMetamaterials :: Replies: **2** :: Views: **538**

We recently published a paper that describes a very simple and powerful technique for implementing total-**field**/scattered-**field** sources in the **finite**-difference frequency-domain method. The paper also serves as a brief tutorial of the method. The paper is open access and freely available:

Electromagnetic Design and Simulation :: 05-05-2013 14:45 :: rrumpf :: Replies: **0** :: Views: **902**

I am interesting in distributed hardware architectures.
Especially:
- what kind of software/hardware can be synthesized in a distributed manner
- what are the current challenges in the **field** of synthesis of distributed systems
Currently I am working on automatic synthesis of **finite**-state-machines working in rings.
Let me know, if you wan

Heuristic methods, Machine Learning, AI, and Soft Computing :: 02-17-2012 11:36 :: tariavo :: Replies: **0** :: Views: **738**

Hi, I've developped an online tool for generating a **finite** **field** multiplier with any primary polynomial. You can try it at .

ASIC Design Methodologies and Tools (Digital) :: 09-17-2011 16:13 :: sycolegend :: Replies: **2** :: Views: **1530**

Why not begin with the simple point/line source?
You might also want to read:
1) The **finite** difference time domain for electromagnetic by Kunz
2) Electromagnetic simulation using FDTD method by Dennis Sullivan

Electromagnetic Design and Simulation :: 12-21-2010 22:50 :: Kohi_boy :: Replies: **8** :: Views: **2343**

For AES alone, you dont need montgomery multiplication.
for public key, you do need montgomery multiplication. You can understand the algorithm and code it yourself. I have a reference but its in VHDL
**finite**-**field** Arithmetic Circuits
Under chapter 3, see article 3.4.3

ASIC Design Methodologies and Tools (Digital) :: 11-13-2010 17:06 :: tariq786 :: Replies: **4** :: Views: **4723**

I am confused in calculating inverse in **finite** **field** Gf( 2^8 ) using extended euclidean method of
(x6+x4+x+1)^-1mod (mod x8+x4+x3+x+1)

Mathematics and Physics :: 10-25-2010 17:31 :: BAT_MAN :: Replies: **0** :: Views: **2614**

Hello.
I am trying to calculate the electrostatic **field** on a coupled microstrip enclosed withing a ground plane using **finite** difference method. the coupled microstrip rests on a 1mm thick dielectric, the rest is just air. The space where I compute the **field** is 5x5mm. 10V common mode is imposed on the coupled microstip.
I wrote some (...)

Electromagnetic Design and Simulation :: 06-20-2010 10:51 :: iggyboy :: Replies: **2** :: Views: **1786**

Hi,
I finished my work on RS code for a long time.
I think you know that the basic concept of RS code is based on **finite** **field** (so, primitive polynomial too).
I remember that I did not generate primitive polynomials , but found them on the appendix of some textbooks.
With selected primitive polynomial , i can use it to generate binary repre

Digital communication :: 03-02-2010 02:26 :: puripong :: Replies: **1** :: Views: **689**

See Allen Taflove's book.
The name is Computational Electrodynamics: The **finite**-Difference Time-Domain Method. You can find it in www dot 4shared dot com

Electromagnetic Design and Simulation :: 01-04-2010 12:43 :: maxwell.j.c :: Replies: **11** :: Views: **2854**

Hi,people.
My question is about **finite** difference modeling of EM **field**s.
Exist some methods to force numeric divergence be zero,
not changing too much the overall **field** picture?
Like / dx + / dy + / dz = 0.
Theoretically Maxwell equations maintain divergence st

Electromagnetic Design and Simulation :: 10-15-2009 11:39 :: computer1 :: Replies: **0** :: Views: **1142**

Yes. However, in an inhomogeneous **field** and with **finite** toroid diameter, the cancellation isn't complete.

Elementary Electronic Questions :: 08-31-2009 06:44 :: FvM :: Replies: **3** :: Views: **1040**

For a **finite** size you can use plane wave excitation but you will have to calculate the reflected power using **field** calculator yourself.

Electromagnetic Design and Simulation :: 07-13-2009 18:34 :: mideoguns :: Replies: **2** :: Views: **1569**

Hi all,
I need to simulate an in**finite** (in the y direction) dielectric slab with **finite** width (in the x direction) in COMSOL and see the scattering **field**, but I do not know how to set the absorbing boundary condition at the edges of the slab.
Does anyone know how to simulate in**finite**-length geometries in the 2D RF (...)

Electromagnetic Design and Simulation :: 05-19-2009 13:04 :: iaia :: Replies: **0** :: Views: **2328**

Generally the magnetic filed around a coild can be calculated by integrating the contribution of individual current elements according to Biot-Savarts law. There are also free tools as Quick**field** Student Version that allow **finite** element analysis of simple coil geometries.

RF, Microwave, Antennas and Optics :: 03-16-2009 07:31 :: FvM :: Replies: **4** :: Views: **1951**

In FDTD, the **field**s are known only at discrete points. Maxwell's equations are approximated using **finite**-differences which generates one equation for every **field** component at every point. These equations include **field** components at surrounding points. At the edge of your grid, you will be required to include a (...)

Electromagnetic Design and Simulation :: 01-16-2009 02:01 :: rrumpf :: Replies: **6** :: Views: **1728**

Just look for materials on the **finite** element method for electromagnetics. 99% of the material you will find is FEM is in the frequency-domain. Time-domain FEM is quite rare because it has some problems, but it certainly exists.
-Tip

Electromagnetic Design and Simulation :: 12-23-2008 21:59 :: rrumpf :: Replies: **1** :: Views: **1354**

Because it is an in**finite** wire use the BS formulation of **finite** straight wire to the case of in**finite** wire. Here because the wire is along the x-axis, the x-ordinate (1) is of no importance, as any x-ordinate is identical w.r.t. in**finite** wire.
The distance of the **field** point from the wire is R = (2^2 + (...)

Elementary Electronic Questions :: 10-28-2008 04:02 :: subharpe :: Replies: **2** :: Views: **1785**

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