Antenna Design Requirements; Antenna Design Indicators - Huawei ME909u-521 Hardware Manual

HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
Table 4-4 lists the required ranges of the conducted transmit power of ME909u-521.
Table 4-4 ME909u-521 conducted Tx power
Band
GSM 850
GSM 900
GSM 1800
GSM 1900
WCDMA Band 1
WCDMA Band 2
WCDMA Band 5
WCDMA Band 8
LTE Band 1
LTE Band 2
LTE Band 3
LTE Band 5
LTE Band 7
LTE Band 8
LTE Band 20
Maximum Power Reduction (MPR and AMPR) of LTE is according to 3GPP TS
36.521-1

4.5 Antenna Design Requirements

4.5.1 Antenna Design Indicators

Antenna Efficiency
Antenna efficiency is the ratio of the input power to the radiated or received power of
an antenna. The radiated power of an antenna is always lower than the input power
due to the following antenna losses: return loss, material loss, and coupling loss. The
efficiency of an antenna relates to its electrical dimensions. To be specific, the
antenna efficiency increases with the electrical dimensions. In addition, the
transmission line from the antenna port of ME909u-521 module to the antenna is also
part of the antenna. The line loss increases with the line length and the frequency. It is
recommended that the line loss is as low as possible.
Issue 05 (2017-12-15)
Typical Value (Unit: dBm)
32.5
32.5
29.5
29.5
23.5
23.5
23.5
23.5
23
23
23
23
23
23
23
.
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Copyright © Huawei Technologies Co., Ltd.
RF Specifications
Note (Unit: dB)
± 1
± 1
± 1
± 1
± 1
± 1
± 1
± 1
± 1
± 1
± 1
± 1
± 1
± 1
± 1
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