HUAWEI MG323 GSM M2M Module |
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Hardware Guide | Antenna Interface |
4 Antenna Interface
4.1 About This Chapter
An RF connector or an antenna pad can be used as the connection method of an antenna interface. When the MG323 module works properly, only one of the preceding connection methods is used. In addition, the antenna interface must be used with coaxial cables with 50 Ω characteristic impedance.
4.2 Antenna Installation
The MG323 module supports the following two antenna connection methods: buckled RF connector
When the MG323 module works properly, only one antenna connection method can be used; otherwise, the RF performance may deteriorate.
If a buckled RF connector is used, it is recommended that you use a 50 Ω coaxial cable in the U.FL series. The height of the connector increases by 0.8 mm when this cable is used.
If an antenna pad is used, you need to connect the coaxial cable core to the pad. In addition, you need to connect the shield ground of the coaxial cable to the reference ground near the pad. You can choose a suitable direction to weld the RF cable to meet the installation requirements according to the actual application.
When trying to shorten the opening between the coaxial cable core and the shield ground, you also need to prevent a short circuit.
Issue 06 | Huawei Proprietary and Confidential | 29 | |
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