Interference; Antenna Requirements - Huawei ME936 Hardware Manual

HUAWEI ME936 LTE M.2 Module
Hardware Guide
The following ECC is recommended for ME936.
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4.5.2 Interference

Besides the antenna performance, the interference on the user board also affects the
radio performance (especially the TIS) of the module. To guarantee high performance
of the module, the interference sources on the user board must be properly
controlled.
On the user board, there are various interference sources, such as the LCD, CPU,
audio circuits, and power supply. All the interference sources emit interference
signals that affect the normal operation of the module. For example, the module
sensitivity can be decreased due to interference signals. Therefore, during the
design, need to consider how to reduce the effects of interference sources on the
module. You can take the following measures: Use an LCD with optimized
performance; shield the LCD interference signals; shield the signal cable of the
board; or design filter circuits.
Huawei is able to make technical suggestions on radio performance improvement of
the module.

4.5.3 Antenna Requirements

The antenna for ME936 must fulfill the following requirements:
Table 4-5 Antenna requirements of ME936
Antenna Requirements
Frequency range
Issue 03 (2017-12-11)
ECC ≤ 0.5 (working frequency below 0.96 GHz)
ECC ≤ 0.3 (working frequency above 1.4 GHz)
 The antenna consists of the antenna body and the relevant RF transmission cable. Take
the RF transmission cable into account when measuring any of the preceding antenna
indicators.
 Huawei cooperates with various famous antenna suppliers who are able to make
suggestions on antenna design, for example, Amphenol, Skycross, etc.
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Copyright © Huawei Technologies Co., Ltd.
Depending on frequency band(s) provided by the
network operator, the customer must use the most
suitable antenna for that/those band(s)
RF Specifications
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