User's Manual
Table Of Contents
- 1. Key Features
- 2. Pinout
- 3. Interfaces
- 4. Module Software
- 5. Hardware Design Guidelines
- 6. Electrical Characteristics
- 7. RF Characteristics
- 8. Physical Dimensions and PCB Land Pattern
- 9. Soldering Recommendations
- 10. Tape and Reel Packaging
- 11. Certifications
- 12. Ordering Information
- 13. Support
- 14. Revision History
- Table of Contents
The layouts shown in the figure below will result in severely degraded RF-performance.
Figure 5.2. Non-optimal Application PCB Layouts for WGM110A Module
The impact of the size of the ground plane on the achievable range of the maximum range available for the WGM110A Module is
shown below. As can be seen from the image, the curve indicates that the maximum range is achieved with an approximately 35 - 40
mm wide ground plane. Narrower ground planes can be used but will result in compromised RF performance.
Figure 5.3. Guideline For the Achievable Range vs. Ground Plane Width for WGM110A
5.3 Antenna Design Guidelines
This section contains information regarding the optimal functioning of the antenna when using the WGM110A version. When using the
WGM110E version with an external antenna follow the antenna manufacturers design related information typically available from the
antenna data sheet.
5.3.1 Effect of Plastic and Metal Materials
Do not place plastic or any other dielectric material in touch with the antenna.
Any metallic objects in close proximity to the antenna will prevent the antenna from radiating freely. The minimum recommended dis-
tance of metallic and/or conductive objects is 10 mm in any direction from the antenna except in the directions of the application PCB
ground planes.
WGM110 Wizard Gecko Wi-Fi
®
Module Data Sheet
Hardware Design Guidelines
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