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## Finite Ground ie3d |

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finite ground plane and ie3d , ie3d finite ground plane , finite substrate ie3d , finite substrate using ie3d

67 Threads found on edaboard.com: **Finite Ground ie3d**

HI
Ansoft ensemble and ansoft designer are not suitable for simulation of structures with **finite** **ground** plan.**ie3d** is better.

Electromagnetic Design and Simulation :: 06.01.2005 02:20 :: kamilia :: Replies: **3** :: Views: **2336**

Hi, Jayanthi:
I checked both of your structures. There are problems on both of them.
1. For the in**finite** **ground** plane model, you define No.0 substrates as good conductor. It is correct. However, you also define the **finite** **ground** plane shape as some polygons on z = 0. On **ie3d**, this means you dig a hole (...)

Electromagnetic Design and Simulation :: 28.12.2006 15:23 :: jian :: Replies: **4** :: Views: **1263**

Hi, Kishorekumar:
Normally, **finite** **ground** plane will degrade circular polarization.
Best regards,

RF, Microwave, Antennas and Optics :: 08.01.2007 18:34 :: jian :: Replies: **1** :: Views: **617**

HOW CAN I GIVE A PORT TO **finite** **ground** PLANE AND IN**finite** **ground** PLANE USING **ie3d**?

RF, Microwave, Antennas and Optics :: 28.03.2008 00:34 :: kri_moni :: Replies: **1** :: Views: **923**

Hi everyone,
I want to model radiation pattern of a dipole antenna above a **finite** **ground** plane with Method of Moments (without Software like **ie3d** or FEKO), but i don't know how. my main problem is in finding Integral Equation of problem. can anyone help me???
Thanks,

RF, Microwave, Antennas and Optics :: 12.06.2009 10:54 :: ali987 :: Replies: **0** :: Views: **926**

I have a simple 8 dipole design I want to simulate using Zelands **ie3d** but I cannot see how you specify the tracks on two sides of the FR4 substrate.
I can add substrates. OK
I can add tracks. OK
Basically its two "H" shapes like this:
H
H
Where the top of the "H" (squared off U shape) is on the top of the PCB and bottom of the "H" is on t

Electromagnetic Design and Simulation :: 10.08.2004 06:15 :: covenlink :: Replies: **1** :: Views: **1804**

how i can define GCPW with **finite** **ground** in **ie3d** ?

Electromagnetic Design and Simulation :: 31.05.2005 01:43 :: zeshan102 :: Replies: **11** :: Views: **3665**

Hi, Abhi: I believe you must have not defined differential ports between the center strip and the **finite** cpw **ground**s. The port you defined on the center strip is referencing the in**finite** **ground**. **ie3d** issues a warning message to you. If you define the ports correctly, it should cause such message. Attached (...)

Electromagnetic Design and Simulation :: 22.12.2005 15:36 :: jian :: Replies: **1** :: Views: **840**

hi,
i have a basic doubt in defining the port in case of **ground**ed CPW structure - in the **ie3d** manual it is mentioned that while defining port (advanced extension/extn. for MMIC) we should define port only to a part of the **finite** CPW **ground** for higher accuracy, but my question is that - wat should be the size of that (...)

Electromagnetic Design and Simulation :: 26.12.2005 11:39 :: abhi_kolkata :: Replies: **1** :: Views: **992**

Hi Jian,
Thanks for your timely help. Can you please clear one more doubt? How to extract shunt inductance using **ie3d**? Should I use any extension line as one end of the inductor line is short circuited for feeding the inductor? If I want to use a **finite** **ground** plane then what should be the dimension of the **finite** (...)

Electromagnetic Design and Simulation :: 23.02.2006 04:09 :: MM_DEVILS :: Replies: **6** :: Views: **1321**

I simulate an UWB patch antenna covering 3~11GHz, with the **finite** **ground**, the antenna size is 200mm, and the thickness is quite large(about 15mm), can the differential port work?
For both frequency range and antenna dimension are too large,the simulation of every point takes very long time, so I decrease the mesh number to 6, and the result i

Software Problems, Hints and Reviews :: 25.04.2006 03:01 :: verashen :: Replies: **1** :: Views: **845**

Hi, Bala:
I sent you the explanation and revised geometry files 5 minutes ago. By the way, I just noticed that the resonace of your structure is not due to the CPW fed slot. It is due to the **finite** **ground**. The **finite** **ground**'s resonance is at about 5.5 GHz and the slot's resonance is at about 8 GHz. When you define so wide (...)

Electromagnetic Design and Simulation :: 10.11.2006 11:16 :: jian :: Replies: **9** :: Views: **1279**

Hi, jayanthi:
I checked your structure and results. I can see there are many up and down in the s-parameters. You may consider it as instability. In fact, I believe it is not. It should be true resonances caused by the **finite** **ground** plane and the 2 monople like structures in the **finite** **ground** plane. Basically, they are (...)

Electromagnetic Design and Simulation :: 08.12.2006 12:38 :: jian :: Replies: **3** :: Views: **527**

Hi, Pennylsn:
It is simple. For example, you have draw the **finite** **ground** (or define an in**finite** **ground**) on z = 0. You also define the patch on z = 3 mm. You want to build a shorting plate from 3 to 0. What you can do is to select an edge of 2 vertices on the patch at z = 3. Select EDIT->ADD VIA ON EDGES command. Enter the (...)

RF, Microwave, Antennas and Optics :: 14.12.2006 23:10 :: jian :: Replies: **7** :: Views: **904**

Hi, Chest:
From the look, it seems that it is modeing a **finite** **ground** patch in the manual while your built is modeling a patch on in**finite** **ground**. In order to make it **finite** **ground**, you need to define the No.0 layer's conductivity to 0 or some very small value, and put some polygon(s) to (...)

RF, Microwave, Antennas and Optics :: 15.12.2006 11:19 :: jian :: Replies: **7** :: Views: **1976**

Hi, poyinting:
On **ie3d**, the scattering field is defined as the field scattered instead of reflected. When you define in**finite** substrate, there is scattered field and reflected field. Reflected field is a plane wave when the incident wave is planewave. Scattered field is a spherical wave.
In some sense, if you model a patch on in**finite** (...)

Electromagnetic Design and Simulation :: 18.12.2006 17:18 :: jian :: Replies: **1** :: Views: **973**

Hi, Jayanthi:
I checked your model. It is ok. The pattern is not complete omni-directional. However, given the structure, it is like that.
There is a dip at theta = 90 degrees. It is caused by the in**finite** extended substrate. If you use **finite** substrate, the dip will be gone while the overall pattern shape is still like that.
It is impos

Electromagnetic Design and Simulation :: 09.01.2007 16:37 :: jian :: Replies: **5** :: Views: **859**

Hi, Chest:
I don't see serious problem in your structure. I tried the **finite** **ground** plane model on it. It is slightly different from the in**finite** **ground** model. The difference is mainly due to the fact you chose very thin substrate for 10 GHz. In fact, there might be 2nd order mode in the transmission line due to the thick (...)

Electromagnetic Design and Simulation :: 13.01.2007 19:17 :: jian :: Replies: **7** :: Views: **718**

Hi, hsean:
I checked the structure. I see some incorrect parameters "t=1.6 and l=1.3". I assume they are "t=1.3 and l=1.6". Otherwise, I don't see other mis-match in the parameters between your built of geometry and the one discussed in the paper.
However, for your **finite** GND model, you define -1 port over a very wide edge. This normally shou

Electromagnetic Design and Simulation :: 11.07.2007 12:24 :: jian :: Replies: **8** :: Views: **933**

Hi, MRAJAHARSHA:
There are only two choices:
1. Make a hole on an in**finite** **ground** (define horizontal polygons on the in**finite** **ground** to represent the slots on the **ground**)
2. Make a hole on a **finite** **ground** (use the way described by baraguru).
The 2 choices use (...)

RF, Microwave, Antennas and Optics :: 10.09.2007 12:53 :: jian :: Replies: **9** :: Views: **1393**

well **ie3d** manual is as good as this one as far as I can think. It is not well written.
My experience is that **ie3d** is only good for planar structures with in**finite** **ground** plane. I have simulated some slot antennas using **ie3d**. They came very well and the speed was impressive. For **finite** (...)

RF, Microwave, Antennas and Optics :: 10.02.2008 07:01 :: dissa :: Replies: **9** :: Views: **3818**

Hi,
I am trying to set up a problem in **ie3d** where there is an edge-fed loaded patch antenna. The problem is this: after setting up advanced extension differential port on the microstrip I would like to insert a probe feed to patch, however the program gives me an error: "unable to build the probe-feeds with error code (ic=1)".
This problem o

RF, Microwave, Antennas and Optics :: 03.01.2008 03:51 :: junta99 :: Replies: **10** :: Views: **1845**

Im trying to model a patch antenna on a **finite** **ground** and substrate.I followed the manual in creating the **finite** substrate.But after the meshing when i try and simulate, it gives me an error message.
"remove current graph from list
remove current graph from list of simulating **finite** dielectrics"
Could someone tell me (...)

Electromagnetic Design and Simulation :: 05.03.2008 13:56 :: d2_asimov :: Replies: **4** :: Views: **939**

Hi all again
In this post I have simulated this paper with **finite** **ground**. But result?s isn?t exact too.
.
Could anybody check these files and tell me my mistake please?
I will wait for your reply.
Best Regards.

RF, Microwave, Antennas and Optics :: 01.04.2008 10:13 :: rf-en :: Replies: **3** :: Views: **601**

Define a layer's sigma to a very large value for in**finite** **ground**. then Define a **finite** **ground** as some polygons.

Software Problems, Hints and Reviews :: 06.05.2008 06:39 :: nazanin :: Replies: **1** :: Views: **522**

What do you mean half **ground** plane? On **ie3d**, you can define in**finite** **ground** on substrate or you can define **finite** **ground** plane using some polygons. If it is semi-in**finite** **ground**, you need to use **finite** **ground** to model it. (...)

Software Problems, Hints and Reviews :: 16.05.2008 15:32 :: nazanin :: Replies: **1** :: Views: **554**

Dear friend,
I have one project at **ie3d**, my result is similar to article, it is return loss of antenna, my result is 10 db more than article, what do i friend?

RF, Microwave, Antennas and Optics :: 05.06.2008 08:41 :: Leilon :: Replies: **1** :: Views: **507**

Hi, kato01:
CPW port is discussed much in **ie3d** user's manual.
However, for slotline, you need to be careful. A slot on an in**finite** **ground** plane does not have a single fundamental mode. You may not be able to model it using transmission line theory even though a slot line as port of a circuit without ports are possible. If you define a (...)

Electromagnetic Design and Simulation :: 10.06.2008 21:38 :: jian :: Replies: **2** :: Views: **1467**

Hi All,
I've been using **ie3d** to make numerical calculation (simulation) on my MSA project.
It's a 3 layers patch antenna.
Until now, I've used the in**finite** **ground** plane and in**finite** substrate on **ie3d**.
The next step, I would like to use **finite** **ground** plane and (...)

Electromagnetic Design and Simulation :: 29.08.2008 04:01 :: 2cent :: Replies: **3** :: Views: **1274**

hi friends i am designing monopole antenna for UWB application with the **finite**
**ground** plane ,but the **ground** plane is not completely below the hole patch its
limited on **finite** dimension 2D view of my problem is given below
please help me if any body having any idea about **finite** (...)

RF, Microwave, Antennas and Optics :: 05.09.2008 15:17 :: ritesh_badhai :: Replies: **0** :: Views: **553**

In **ie3d** help, you can find how to define **finite** **ground** plane.
In the basic parameter menu, use sigma=0 for Ztop=0; it means that there is no in**finite** **ground**. Then you can define all the layer you need (please see the manual of **ie3d**).

Electromagnetic Design and Simulation :: 09.02.2009 04:35 :: shameemkabir :: Replies: **3** :: Views: **1225**

You can define substrate, **finite** **ground** plane etc. in **ie3d**. In the help file of **ie3d** you can find example how to define all these.

RF, Microwave, Antennas and Optics :: 18.02.2009 03:50 :: shameemkabir :: Replies: **1** :: Views: **674**

Hi Jian,
To start with I am simulating pifa antenna using **ie3d**, extension for mmic scheme. and the design was working perfectly too..
In pifa I am using **finite** **ground** plane, so differential feeding I am providing to the structure having 1 mm distance from (**finite**) **ground** plane..
THe problem is coming (...)

Electromagnetic Design and Simulation :: 02.04.2009 02:30 :: nipunn007 :: Replies: **2** :: Views: **1201**

Did you simulated the antenna with **finite** **ground** plane?
Also confirm the loss tangent and dielectric permitivity of the PCB you are using during **ie3d** design. Try to increase bandwidth a little.
Try increasing the mesh frequency
Or simply analyze the same design to achieve resonant frequency of 23.5 GHz. This way you will know which (...)

RF, Microwave, Antennas and Optics :: 06.05.2009 20:28 :: usman_mahfooz :: Replies: **2** :: Views: **595**

Hi all!
I'm new with simulation and antenna design. I'm triying to simulate a probe-fed rectangular patch antenna on a **finite** **ground** plane.
I designed this antenna by transmission line model using fiberglass as dielectric substrate with Er=4.4 and h=1.52mm.
The size of this patch is L=29.47mm and W=38.03mm. The size of the **ground** plane (...)

Electromagnetic Design and Simulation :: 02.07.2009 14:11 :: clark09 :: Replies: **0** :: Views: **1041**

Hi,
I am new to **ie3d** and am trying to learn it. I would like to use it to design PCB antennas (inverted-F, meander line, etc.).
Most examples I've read so far use an in**finite** **ground** plane. My question is: what is the difference between using an in**finite** and a **finite** **ground** plane? (...)

Electromagnetic Design and Simulation :: 11.01.2010 13:51 :: rvargo :: Replies: **0** :: Views: **1191**

I find it difficult to design UWB antenna in **ie3d** having **finite** **ground** plane.
Can someone please help me by telling which type of ports to be used for the microstrip feed with **finite** **ground** plane and how to make a **finite** **ground** plane as in **ie3d**, by default, (...)

RF, Microwave, Antennas and Optics :: 22.03.2010 07:23 :: kandakatlakaushik :: Replies: **1** :: Views: **582**

i have been using **ie3d**.
but the sample folder installed in my computer has been "corrupted" please can anyone upload the sample folder or send it to my e-mail id "vishal.06118g.ece@gmail.com"
the other problem is,i want **finite** **ground** plane which i got in sample folder,but i want air on same at z=0 above the **finite** (...)

RF, Microwave, Antennas and Optics :: 15.04.2010 14:26 :: vishal315 :: Replies: **0** :: Views: **406**

Hello,
I don't know the version of **ie3d** you have, but the older ones do support limited **ground** plane, but in**finite** dielectrics only. This will give zero radiation under zero elevation, while the actual antenna may produce radiation under zero elevation.
You can remove the in**finite** **ground**plane by (...)

Software Problems, Hints and Reviews :: 05.05.2010 06:27 :: WimRFP :: Replies: **1** :: Views: **1136**

i dont think dats d far as i **ie3d** **finite** **ground** plane is only possible by setting real part of conductivity of 0 layer to 0 and den d process i mentioned before....
regards

Electromagnetic Design and Simulation :: 06.12.2010 07:19 :: cant-bury :: Replies: **6** :: Views: **1111**

i already have a structure for printed monopole antenna
but i can't build it....i can't define a **finite** **ground**?
and if some one can help me to understand this structure...thank

RF, Microwave, Antennas and Optics :: 28.03.2011 13:13 :: hnoon :: Replies: **0** :: Views: **437**

hello
this time, i want to know about inset feed using **ie3d**.
in **ie3d** when we have to set the **finite** **ground** plane then we have to put the value 0 to real part of conductivity in the 0 layer in the basic parameters but we want to give inset feed then do we still follow the same procedure to set the **ground** (...)

Electromagnetic Design and Simulation :: 27.02.2012 12:59 :: vishal_sonam :: Replies: **0** :: Views: **442**

It seems to me the in**finite** substrate explanation is counterintuitive. Shounldn't we expect the effect of **finite** substrate to be more significant when the antenna is spaced further away from the **ground**? But ghb described that results for 100mil spacing are bettern than those of 30mils.
More details of the design might be needed to get a (...)

Electromagnetic Design and Simulation :: 11.10.2003 22:06 :: loucy :: Replies: **16** :: Views: **2526**

They aren't listed all but appreciate good idea.
OK, I have a question if someone have experience with comparing results of various p a t c h antennas (better say compact) given by **ie3d** and CST-MWS.
Usually I'm getting frequency shift between those two.
Note that I'm trying to set similar conditions when possible - like (in)**finite** (...)

Electromagnetic Design and Simulation :: 07.05.2004 08:50 :: eirp :: Replies: **15** :: Views: **1408**

The example of monoploe over a **finite** **ground** plane doesn't say much about the "low-frequency" performance of the code. Try problem requiring lmbda/1000 mesh.
30MHz is not necessarily low frequency?
How does WIPL-D solve the monopole on **finite** **ground** problem in seconds?

Electromagnetic Design and Simulation :: 16.05.2004 23:44 :: loucy :: Replies: **5** :: Views: **1064**

Hi, Oggi: I would suggest you to try to optimize your element and 4-patch array using in**finite** **ground** plane first. Input impedance is normally not affected by the size and shape of the antenna much. You can optimize it to get good match first. **ie3d** has built-in optimizers to help you optimize antenna perforamnces (S11, Z, or even pattern (...)

RF, Microwave, Antennas and Optics :: 12.09.2005 11:36 :: jian :: Replies: **5** :: Views: **1349**

In any simulator, **ie3d** or Microwave office, we supppose to do **finite** **ground** method for DGS simulations. I just taken 3 layer, top is trip line of width W, and in the bottom accoring to the size of etching draw the gound plane. It may take few hours to understand the simualtion set-up, as all

RF, Microwave, Antennas and Optics :: 21.01.2008 06:23 :: kannadassan :: Replies: **3** :: Views: **1230**

Hi, Adhi:
Here are some models (edge fed, in**finite** gnd & sub, **finite** gnd &/or sub) for the 8 GHz range. You can start from them.
I do want to warn you on the substrate thickness. The 2nd order mode should happen at about 30 GHz for a 0.35 mm thick substrate. Even you can use edge fed, microstrip lines in this frequency range with such a thic

Electromagnetic Design and Simulation :: 22.11.2005 11:39 :: jian :: Replies: **11** :: Views: **1620**

Hi, pegasuss:
(1) You can use ADV EXTENSION ports for the microstrip structures. If you model it as **finite** **ground**, you can use differential ports (either + and - using ADV EXTENSION ports or v-localized and h-localized ports).
(2) You can use **ie3d** to model the connector more precisely. The procedure is a little bit tedious. We will try (...)

Electromagnetic Design and Simulation :: 20.03.2006 13:16 :: jian :: Replies: **3** :: Views: **546**

I am a student of electronical engeeniering and i am a new user of **ie3d** simulation program and i dont know how to put connectors on a structure.İn this structure there are two connectors on two sides.this is really a simple structure with a **finite** **ground** plane.I know the sizes and parameters but first of all, i want to learn how to put (...)

Electromagnetic Design and Simulation :: 20.03.2006 12:54 :: pegasuss :: Replies: **0** :: Views: **459**

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