Hardware Guide
Table Of Contents
- Fibocom_FM101-CG_Hardware_Guide_V1.0.pdf
- FM101-CG-20: Hardware Guide
- Contents
- Change History
- 1. Foreword
- 2. Product Overview
- 3. Pin Definition
- 4. Electrical Characteristics
- 5. Functional Interface
- 6. Radio Frequency
- 6.1. RF Interface
- 6.2. Operating Bands
- 6.3. Transmitting Power
- 6.4. Receiving Sensitivity
- 6.5. GNSS Receiving Performance
- 6.6. Antenna Design
- 6.7. PCB Routing Design
- 6.8. Main Antenna Design
- 6.9. Diversity and MIMO Antenna Design
- 6.10. GNSS Antenna Design
- 6.11. Other Interfaces
- 7. Thermal Design
- 8. Electrostatic Protection
- 9. Structural Specifications
- Appendix A: Acronyms and Abbreviations
- Module FCC & ISED警语 for Fibocom
Figure 23. RF traces
50Ω impedance calculation:
If the value of D1 exceeds 3 times of W1, it has weak effect on impedance.
Figure 24. Impedance calculation for four-layer board top layer trace
6.8. Main Antenna Design
6.8.1. External Antenna
The external antenna has good performance. The antenna is placed outside the complete
machine, the antenna space is large, and the antenna performance is not easy to be
6. Radio Frequency
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