CPW-fed patch antenna

Altair Forum User
Altair Forum User
Altair Employee
edited November 2020 in Community Q&A

Hi everybody

How we excite the  CPW-fed patch antenna in FEKOHow we excite the  CPW-fed patch antenna in FEKO

 thanks in advance

Unable to find an attachment - read this blog

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2020

    Hi

    i have extended the ground plane by lambda/4  and connected the ground plane

    can i consider this way correct

     

    <?xml version="1.0" encoding="UTF-8"?>3d.jpg

    <?xml version="1.0" encoding="UTF-8"?>axial_ratio_vs_freq.jpg

    <?xml version="1.0" encoding="UTF-8"?>s11.jpg

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  • Johan_Huysamen
    Johan_Huysamen
    Altair Employee
    edited January 2018

    Hi gheit

     

    The edge port you used in the model above seems reasonable as it excites the structure between the center line and the ground correctly.

     

    While the above should give you reasonable results, if you wanted to compare very accurately with measured results, you might have to model the actual physical feed in more detail. In the paper you reference the CPW was excited by a SMA connector and you could include this geometry - excited by a waveguide port for example - in your model. Please see the image below for an example of this.

     

    <?xml version="1.0" encoding="UTF-8"?>image005.png

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    hi johan

     

    can you upload .stp file for the sma connector

    which port you exsited the SMA is it wave guide  port

    thanks

  • hykr
    hykr Altair Community Member
    edited January 2018

    Hi,

     

    You can use the edge port as i illustrated in the figure. 

    <?xml version="1.0" encoding="UTF-8"?>unnamed (1).png

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