Problems with the connector in application example "Design an Internally Matched Ultra-wideband Vivaldi Antenna"

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Oscar
Oscar 2019-2-27
评论： Oscar 2019-3-9
Hi,
I am developing a vivaldi antenna for a radar design with which I am working. I followed the example of the application Designing an internal bandband Vivaldi antenna with internal pairing and everything works fine, except when I tried to place an SMA connector on the board. The problem is that I did not find in the documentation any command or function to indicate to matlab where to place my connector. I assumed that with the feed location created, the sma connector takes these parameters as input, but this was not the case. I attach the images that I have generated directly from the gerber files. As seen in the images, it seems that there is no capacitive connection and, in addition, I would say that the connector is upside down. The other option I have is to import the gerber files directly to Keysight ADS and solve this issue directly on it. Thank you in advance.
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Vishwanath Iyer
Vishwanath Iyer 2019-2-28
Hi Oscar,
Thanks for posting this question and highlighting this issue. May I suggest that prior to generating the Gerber files, swap the top and bottom layers in the pcbStack object. As an example, if the name of the pcbStack antenna object is x
,then make a copy of the contents of the Layers property and swap (I assume that the second layer is dielectric here):
L = x.Layers;
x.Layers{1} = L{3};
x.Layers{3} = L{1};
Now proceed as before with the Gerber file generation.
Hope this helps.
Warm regards,
Vish

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