LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi Dist., New Taipei City 221, Taiwan
℡
886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Page
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© 2018 LOCOSYS Technology Inc.
7.3 PCB layout suggestion
The LS2003J-G module antenna’s radiation pattern and tuning are directly related to the size
and shape of the ground plane. When user integrates this module into product, more than likely it
will be on a different size PCB. Which means the GPS performance will differ from the datasheet.
7.3.1
Limitation of PCB width
Suggest the PCB width should be equal to or greater than 50mm, if the PCB width is
smaller than 50mm that will cause poor GPS performance. For the optimum GPS performance,
the PCB width larger than or equal to 80mm is suggested.
Note: All copper under the module keep-out area (6.5x12.2mm) should be removed. Placement of other components
is not allowed under the keep-out area on opposite side.
7.3.2
Installation position on the PCB
The optimum PCB placement of LS2003J-G module is at the center of the top edge.
But LS2003J-G can receive GPS signals from many directions so that it can be placed on the
bottom side or top side.
.
Note: Any metal materials surround the LS2003J-G module will degrade GPS performance.
