Rf Antenna Interface; Figure 3-4 Rf Antenna Interface - Huawei EM820W User Manual

HUAWEI EM820W HSPA+ PC Embedded Module
User Guide

3.4 RF Antenna Interface

Two RF connectors can be used for connecting to an antenna interface. In addition,
the antenna interface must be used with coaxial cables with 50 ohm characteristic
impedance.
The EM820W module supports one antenna connection method of buckled RF
connector U.FL-R-SMT-1(80) manufactured by Hirose.

Figure 3-4 RF antenna interface

Issue 01 (2010-12-30)
voltage bus, USB functions implemented on EM820W which are expected to
report as self-powered devices.
Control signals: The auxiliary signals provide some other functions.
Power sources and grounds: The PCI Express Mini Card provides a 3.3 V power
source. The EM820W uses 3.3 voltage as the power supply.
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Functions of the Interfaces on the
Development Board
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