Homepage - RF Cafe
Webmaster: Kirt Blattenberger | KB3UON | Sitemap | ©1996-2014
Menu below is just a small sample of what is here!
 
Custom Search
More than 10,000 searchable pages indexed.
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

defining ports dipole no ground in Ansoft designer? - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: defining ports dipole no ground in Ansoft designer?
Posted: Thu Jun 30, 2005 7:43 am 
Hi

I'm want to know how I should define ports to my dipole antenna in Ansoft designer? THe antenna is made on top of an substrate with only ONE metal layer (signal layer), that means no ground layer.

How should I define my ports for this dipole when I don't have an ground?
I have tried in different ways but turned up in wrong simulations.

PLease give detailed help since the port options are quite many

Does any one have an example, project file demonstrating an simulation of an dipole without groundplane?

BR


 
  
 
 Post subject:
Posted: Mon Jul 04, 2005 8:54 am 
separate the dipole into two pieces of the same length (so normally each one has got lambda/4), the gap between them should be quite small. Now you can use voltage gap source as a port (have a look at the help "gap source").


 
  
 
 Post subject: define ports dipole in Ansoft Designer
Posted: Thu Jul 07, 2005 10:27 am 
 
Lieutenant
 

Joined: Mon Jun 27, 2005 6:01 am
Posts: 4
Location: Calabria - Italy
In EM Planar Designer select Layout --> Layers and define your substrate and dipole(Signal). After select layer and draw a rectangle(your dipole). Click Edit -->Select Edges and you must select the end of rectangle.Click Draw -->Edge Port. In the Project Manager you can see Excitations , Port1. Now you can Start Analysis

Ps: I'm sorry for my English!!! :lol:


 
   
 
 Post subject:
Posted: Fri Aug 05, 2005 10:44 pm 
 
Lieutenant

Joined: Fri Aug 05, 2005 8:25 pm
Posts: 2
Location: Santa Barbara
Hello BR and others...

Did you ever successfully implement your (electric?) dipole problem?

If so would you mind sharing some od the details of your design.

I am trying to model a magnetic dipole in free space (see topic"Ansoft Design User Unite: Q on modeling a magnetic dipole" for more details) and I could use any suggestions or help.

Thanks
Ebit


 
   
 
 Post subject:
Posted: Tue Aug 09, 2005 12:58 pm 
Ebit wrote:
Hello BR and others...

Did you ever successfully implement your (electric?) dipole problem?

If so would you mind sharing some od the details of your design.

I am trying to model a magnetic dipole in free space (see topic"Ansoft Design User Unite: Q on modeling a magnetic dipole" for more details) and I could use any suggestions or help.

Thanks
Ebit


the (obvious) trick is to model the antenna exactly the way you measure it. Needless to say that you want to model the feedregion in your numerical model just like the experimental model. I assume you use a balun or an SMA endlauncher to feed the dipole? I don't have any problems modeling dipoles using HFSS




Posted  11/12/2012
A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger
    KB3UON

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website