Do you need additional LNA? Connecting ANT_GNSS directly to C33 should work fine.
What is the purpose of C31 and C33?
You have default values for R19 and R21 specified as 0R, but they should be NI or NM or however you call the situation when they are not populated.
I’d go for Passive antenna design (solution 1) as specfied in BG77 Reference design document. We use W3011A this way (but with different GNSS module).
The design looks good. But the important part is on the PCB RF layout. I suggest you send the design to Quectel Local FAE or support team (support@quectel.com) for a free design checking. Thanks.
we have no datasheet of sky56723 and W3011A ,without enough info , We can’t guarantee that the antenna can work in the linear amplification area instead of the saturation area .
I enclosed one mature design for BG95 GNSS antenna for your reference ,
As Rachel said , the best way is that , send your sch and PCB layout to
support@quectel.com , it will be assigned to professional expert , they will review your design and modify it .
I am trying to find information about the Quectel YC0003AA antenna, but I cannot find anything on quectel.com. We use it with the BG95-M3. On Mauser, I found some datasheet but Mauser also stated it should not be used for new designs.
Why should it not be used for new designs? Why has the antenna been removed from your portfolio and no info can be found on quectel.com? Is the antenna EOL? Is the YPCP003AA the same as Quectel YC0003AA? What should be used instead of the YC0003AA?