Antenna Design Requirements; Antenna Design Indicators - Huawei ME909 Series Hardware Manual

HUAWEI ME909 Series LTE LGA Module
Hardware Guide
Item
WCDMA Band VIII
LTE Band I
LTE Band II
LTE Band III
LTE Band V
LTE Band VIII
LTE Band VII
LTE Band XX
Modulation
QPSK
QPSK
16QAM
16QAM

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 cable from the antenna port of ME909 to the antenna is also part of the
antenna. The cable loss increases with the cable length and the frequency. It is
recommended that the cable loss is as low as possible, for example, MXHP32HP1000
made by Murata or equivalent.
Issue V0.3 (2013-05-21)
Maximum Power Reduction (MPR) of LTE is according to 3GPP TS 36.521-1 as below.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3GPP Protocol
Claim (dBm)
21 to 25
21 to 25
21 to 25
21 to 25
21 to 25
21 to 25
21 to 25
21 to 25
RB Allocation
≥ 1 RB, ≤ Partial RB
> Partial RB
≥ 1 RB, ≤ Partial RB
> Partial RB
RF Specifications
ME909u-521 Test Value (dBm)
Min. Typ.
TBD TBD
TBD TBD
TBD TBD
TBD TBD
TBD TBD
TBD TBD
TBD TBD
TBD TBD
MPR(dB)
0
≤ 1
≤ 1
≤ 2
Max.
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
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