Port in Ansoft Designer

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pir0texnik

Joined: 07 Aug 2005
Posts: 53
Helped: 4

04 Jan 2006 1:36 Port in Ansoft Designer

Hello!

I want to simulate a patch antenna in Ansoft Designer. I need excite it in place that is marked in picture analogously to lumpled port in HFSS or CST.
How do such thing?

Thank you!

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burton

Joined: 12 Dec 2003
Posts: 198
Helped: 9

05 Jan 2006 5:43 Re: Port in Ansoft Designer

I cannot understand the picture.So I could give any help.Could you send me the project by email?I can do a try.

pir0texnik

Joined: 07 Aug 2005
Posts: 53
Helped: 4

06 Jan 2006 0:28 Re: Port in Ansoft Designer

burton wrote:

I cannot understand the picture.So I could give any help.Could you send me the project by email?I can do a try.

ok, here is the projet. i need to excite it in the center by planar port.

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mwmmboy

Joined: 18 May 2001
Posts: 145
Helped: 6

06 Jan 2006 11:21 Re: Port in Ansoft Designer

If you want to use Ensemble, I am sure you can find an internal port. All Planar EM simulators have this kind of port.

I hope this can help.

loucy

Joined: 26 Aug 2001
Posts: 432
Helped: 10

06 Jan 2006 17:36 Re: Port in Ansoft Designer

I think

1. the direction of red arrow should follow the direction of current flow. In the above picture, the current is not flowing into the conductors.

2. you might want to draw a rectangle that is tilted 45 degree from the horizontal axis. cut the two corners of the 90 bend so that both of them have an edge making 135 degree with the horizontal axis. define your port on the rectangle with a current or voltage direction along the 45 degree line.

3. the port is located at a higly irregular (discontinuous) region where you would see complex wave propagation behavior. So I would be mindful that any lumped port define there might be very different from your real feeding scheme. the input impedance calculated might not be accurate.