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HUAWEI EM820W HSPA+ PC Embedded Module
Hardware Guide RF Specifications
Issue 01 (2010-12-31)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
25
Active Tests
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TRP: GSM, WCDMA, CDMA, TD-SCDMA, and LTE systems
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TIS: GSM, WCDMA, CDMA, TD-SCDMA, and LTE systems
Figure 4-1 shows the SATIMO microwave testing chamber.
Figure 4-1 SATIMO microwave testing chamber
4.5 Design Recommendations
4.5.1 Recommendations for Designing the Module Antennas
The design recommendations are as follows:
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It is recommended that the module antennas are designed at the upper edge,
left edge, or right edge of the laptop screen. Designing the antenna at the upper
edge is better.
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Take the isolation and envelope correlation between the master antenna and
the slave antenna
into account when designing the antennas. Keep the slave
antenna away
from the master antenna as far as possible. Install the slave
antenna perpendicularly to the master slave. See
Figure 4-2, Install the master
and slave antennas in positions 1 and 3 or 2 and 4 but not in positions 1 and 2 or
3 and 4.