Telit Wireless Solutions ME910X1 User Manual

ME910C1 mPCIe HW Design Guide
1VV0301642 Rev. 2 Page 36 of 56 2022-01-14
Not Subject to NDA
• Main RF antenna (ANT)
• GNSS Antenna (GPS)
Connecting cables between the module and the antenna must have 50 Ω impedance.
If the impedance of the module is mismatched, RF performance is reduced significantly.
If the host device is not designed to use the module’s diversity or GPS antenna, terminate
the interface with a 50Ω load.
7.3.2. Main GSM/LTE Antenna Requirements
The antenna for the ME910X1-mPCIe device must meet the following requirements:
Table 21 Main Antenna Requirements
7.3.3. GNSS Antenna Requirements
ME910X1 mPCIe board does not supports active antenna. If you want to us an active
antenna, the bias circuit should be done externally.
In case of GNSS active antenna, It is recommended to follow:
• An external active antenna (17dB typ. Gain, GPS only)
• An external active antenna plus GNSS pre-filter (17dB typ. Gain)
Note:
The external GNSS pre-
filter is required for the GLONASS
application.
The GNSS pre-filter must meet the following requirements:
Source and load impedance = 50 Ohm
• Insertion loss (1575.42–1576.42 MHz) = 1.4 dB (Max)
Item
Value
Frequency range
The customer must use the most suitable antenna band width for
covering the
frequency bands provided by the network operator while using the Telit module.
The bands supported by each variant of the ME910X1 module family are provided in
Section
§
2.2 Product Variants and Frequency Bands
Gain
Gain < 3 dBi
Impedance
50 Ohm
Input power
> 33 dBm(2 W) peak power in GSM
> 24 dBm average power in WCDMA & LTE
VSWR absolute max
≤
10:1 (limit to avoid permanent damage)
VSWR recommended
≤ 2:1 (limit to fulfill all regulatory requirements)

Telit Wireless Solutions ME910X1 Specifications

General

Brand	Telit Wireless Solutions
Model	ME910X1
Category	PCI Card
Language	English