Amplified GPS antenna design

GPS/GNSS Development Boards
1

All,

I am looking to create an amplified GPS antenna which is very slim and narrow to fit a specific space, it’s too small a space for a standard patch antenna/LNA or geohelix antenna. I was looking at using the GPS-09131 chip antenna along with COM-09013 (SMA661) GPS LNA assembled on 0.8mm PCB approx 15mm x 30mm as a ground plane. Now my RF/Analogue design is poor at best. The power (3v) will be supplied as normal from the GPS recievers antenna-in over a co-axial cable. A small (33nF) cap will block the DC from the LNA’s RF out, however is anything required to block noise etc from the LNA’s DC in? or block the RF from the DC in?

Similar to the taoglas ALA.01.07.0095A which I cannot find a distributer who will supply single units.

Thanks in advance.

Arran

2

I just worked with a taoglas vendor on a < 100$ order and while it took them 3 tries to finally send me the right thing… they did send it. PM me for their info if you want.

Edit: Something is wrong with that antenna… there’s no way that entire board is 0.6mmx3mmx5mm if that is what you were thinking. those are probably just the dimensions for the ceramic component… double check that!

3

15mm x 30mm ground is too small for this antenna, it nees atleast 40x40 to come into tuning