Inverted F antenna simulation

Hi there,

I'm having a hard time trying to simulate this antenna, but I'm not able to replicate the results shown in the reference design. I'm using CST to simulate, and I assume the only way to do so is using a waveguide port, right? However, no matter what I do, I can't match the 50 ohms impedance in the resonance point as expected. Maybe I'm not correctly dimensioning the waveguide port. Can anybody help me?

hi
i cant download file

what? what do you want to download?

Maybe he is talking about my CST model. If so, I'm uploading right now.

i sorry your couldn't open in my pc my CST version 2009

Did you use the DXF or Gerber data that TI provides? I noticed that the Gerber files are not consistent with the dimensions shown in the application note. The DXF files are correct.

As a matter of fact, I managed to draw the antenna myself using the dimensions from the table. My CST doesn't allow to import gerber files, and the DXF seems to be inconsistent.

Hi, you have solved with this antenna ?
If so, can you attach the file ?