GPS patch antenna pcb design

could you please review my layout?

It’s the top side where the antenna is actually placed.

It’s bottom side, here I’ve placed a matching network, LNA (U5)2 and SAW (FL1). The length of the trace between the antenna’s output and IC input is about 15mm (without capacitors and LNA/Filter’s size).

I used kicad’s calculator to get trace width – 1mm (coplanar trace, dielectric height – 1.6). Both sides of the board are covered with a ground polygon.

It’s a recommended layout from the antenna’s datasheet. But I’ve used the matching network from the LNA’s datasheet.

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Here is schematic