PCB Antenna for GPS
PCB Antenna for GPS
(OP)
I have a system with a Lassen IQ GPS, and I'd like to make an antenna on the PCB. I've been looking at some small lug antennas and some traces on the PCB. I have almost no background in anything remotely wireless, so I'm mostly looking for some general information at this point. Links, articles, books etc.
Thanks for you time on the vague question
Andrew
Thanks for you time on the vague question
Andrew





RE: PCB Antenna for GPS
On that site you'll find technical papers which point out many of the pitfalls that you need to look out for. If you have bluetooth also on your board then you'll be opening up pandoras box, and will deffinitely require a filter response antenna. Rather than design your own it's best to get an antenna in and take into account all the relative pitfalls that you face.
Anyway if you do go ahead then make sure your antenna is balanced, has a filter response, doesn't require a ground plane otherwise your performance will be affected by the size of future generations. Have proper shielding. Careful of biological loading especially with GPS........ all depends on your application to what you may or may not get away with.
Book-wise i suppose you could go for mobile antenna systems handbook by Jimmy James....... if you need more advise then just shout.
RE: PCB Antenna for GPS
1) directly atop the GPS receiver
2) remotely with cable attached
3) off the enf of your receiver
GPS frequency is 1.575 Ghz, and it's wavelength is 11.803"/1.575 = 7.494 inches, patch antennas in air are half wavelength or 4 inches long x width(slightly smaller than the length, any thickness works, I'd suggest 2".
So what do you want your antenna to look like?
kch
(antenna engineer)
RE: PCB Antenna for GPS
Thank you,
Woody
RE: PCB Antenna for GPS
RE: PCB Antenna for GPS
I remain,
The Old Soldering Gunslinger