Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Problems with ADS momentum simulation for sinuous antenna

Status
Not open for further replies.
A

AMKIm

Newbie level 3
Joined
Aug 31, 2012
Messages
4
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,314
Hi there I am a physics grad student and new to this whole Antenna thing. However my professor asked me to run an ADS simulation with a sinuous antenna. I got as far as getting the sinuous antenna into ADS (just the shape) and then I just pressed simulate and was hoping for the best...but (of course the program complaint) it said that there are some ports missing. So i naively just clicked on the port icon in ADS and added it in the middle of the antenna.... Didn't work (invalid position). So I am really lost and I dont even know where to start or what is missing... could you give me some hint? i read something about balun in other papers related to the topic. Do i need this for my simulation?
Thanx
 

I am not sure weather you can use ADS for Sinuous antenna simulation. I really doubt. We have tried in HFSS

Try using different port schemes available in ADS. check some sinuous antenna material on web & try the same.
 

I think so far my problem is more basic than you might think:) Because the sinuous antenna didn't work i just imported a gdsii file containing a box shape. There is nowhere to connect the pins to. If i just take a box shaped microstrip line form the icons on the left in ADS momentum I can connect the ports and run a simulation with the same square shape. So I was wondering if the shape I imported was a microstrip..Or do i have to edit something first. Thanx
 

ADS is 2.5D structure simulator. so you can draw 2D structure like patch or PCB monopole, dipole etc.
But importing sinuous structure in ADS!! I really doubt it will work. I am really wondering what did you see.
If I am not wrong, there is no equation based curve in ADS, so you can not use Duhammel's equation to draw curve.

I will try myself, If I can do that & If I succeed then I will let you know.

- - - Updated - - -

Not possible. atleast on my PC.
 

I got this in my ADS antennascrean.PNG

But I am not sure how to connect the pins to that.

When I import the file it says that there is no layer map found so it just will use some GDSII default thing fehler.PNG
 
Last edited:

Hi AMKIm,

Admittedly, I have no experience with sinuous antennas, but it seems to me that you would want to probe-feed it from the center-bottom. I'm assuming that there is no ground plane on this antenna and that you've removed the default infinite ground in ADS, you should still be able to use a single-mode port. To Probe feed, the best way is probably to map a "via" layer through the substrate, draw a circle the same size of a pin you would use to feed the antenna on the bottom layer. Then attach the port to this.

Good Luck
 
Last edited:
  • Like
Reactions: AMKIm

    A

    AMKIm

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top