Hardware Guide

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FIBOCOM MC116-NA Series Hardware Guide Page 47 of 63
Suggestions: For example, LCD, CPU, FPC cable, audio circuit, power supply should be away from the
antenna as far as possible, and make the appropriate isolation and shielding, or filtering on the path.
7) Antenna index requirements
Table 7-6 Main antenna requirements
MC116-NA Series Module Main Antenna Requirement
Frequency range
It must use the most suitable antenna to adapt to the relevant frequency band
Bandwidth (LTE)
LTE band 2 (1900): 140 MHz
LTE Band 4 (2100): 440 MHz
LTE Band 5 (850): 70 MHz
LTE Band 12 (700): 50 MHz
LTE Band 13 (750): 41 MHz
LTE Band 17 (700): 50 MHz
LTE Band 66 (2100): 490 MHz
Impedance
50Ω
Input power
> 23dBm average power LTE
Standing wave ratio
recommended
≤ 2:1
7.5.2 Antenna Reference Design
Antenna is a sensitive device, susceptible to the external environment. For example, the size of the
module, the location of the antenna, the space it occupies, and the surrounding ground all may affect
antenna performance. In addition, the RF cable connect with antenna, and the location of the fixed
antenna also may affect its performance. MC116-NA series module’s three antenna all led by welding
plate. recommended clients use the U.FL-R-SMT-1 antenna connector and corresponding match
adapter cable. Figure 7-1 is reference design of main antenna and diversity antenna.