Closed rodneyosodo closed 2 years ago
From the datasheet.
The capacitor around the antenna
From the datasheet.
Is it a matching circuit or a filtering circuit?
Should be matching. Issue also discussed here.
If it is a matching circuit then the cap should be in parallel
The parallel arrangement would help tune the frequency but the datasheet says otherwise.
@georgebangeboss Thoughts on this?
Should be matching. Issue also discussed here.
It's not a matching circuit. I was wrong on this. It is a series band pass filter.
The capacitor is a DC blocking capacitor The LNA AT2659 datasheet provides sufficient information about the matching circuits. The datasheet is here
Here are photo snippets
The capacitor on the GPS should be in series or parallel? Because I am assuming you are doing some sort of impedance matching or?