User's Manual

Package and Layout Guidelines GS2100M Low Power WiFi Module Data Sheet
GS2100Mxx Recommended PCB Footprint and Dimensions
50 Confidential Preliminary GS2100M-DS-001212, Release 0.10
Figure 5 GS2100MIx Module Dimensions (in inches)
Notes:
1. All Dimensions are in millimeters (mm). Tolerances are as specified.
2. Absolutely no metal trace or ground layer underneath this area. If using PCB
antenna, it is recommended to have only air under this area. Hang antenna over
edge of base board or cut notch in base board.
3. It is recommended not to run circuit traces underneath the module especially
near these holes. The RF shield mounting holes are grounded. If traces must be
routed under the GS2100Mxx, it is recommended that extra thick solder mask (5
mils) be used to prevent shorting. High speed signals should be kept as far as
possible from the antenna and RF areas of the GS2100Mxx.
In additional to the guidelines, note the following suggestions:
1. External Bypass capacitors for all module supplies should be as close as
possible to the module pins.
2. Never place the antenna very close to metallic objects.
3. External monopole antennas need a reasonable ground plane area for antenna
efficiency.
4. Do not use a metallic or metalized plastic for the end product enclosure when
using on-board antenna.
5. If the module is enclosed in a plastic case, have reasonable clearance from
plastic case to on-board antenna.