HUAWEI MU736 HSPA+ M.2 Module
Hardware Guide
RF Specifications
Issue 05 (2014-01-14)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
46
Table 4-4
MU736 conducted Tx power (Unit: dBm)
Item
3GPP Protocol
Claim (dBm)
MU736 Test Value (dBm)
Min.
Typ.
Max.
GSM850
GMSK (1Tx Slot)
31 to 35
31.5
32.5
33.5
8PSK (1Tx Slot)
24 to 30
26
27
28
GSM900
GMSK (1Tx Slot)
31 to 35
31.5
32.5
33.5
8PSK (1Tx Slot)
24 to 30
26
27
28
GSM1800
GMSK (1Tx Slot)
28 to 32
28.5
29.5
30.5
8PSK (1Tx Slot)
23 to 29
25
26
27
GSM1900
GMSK (1Tx Slot)
28 to 32
28.5
29.5
30.5
8PSK (1Tx Slot)
23 to 29
25
26
27
Band I
21 to 25
22.5
23.5
24.5
Band II
21 to 25
22.5
23.5
24.5
Band IV
21 to 25
22.5
23.5
24.5
Band VIII
21 to 25
22.5
23.5
24.5
Band V
21 to 25
22.5
23.5
24.5
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 MU736 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 be as low as possible, for example, U.FL-LP-088
made by HRS.
The following antenna efficiency (free space) is recommended for MU736 to ensure
high radio performance of the module:
Efficiency of the primary antenna:
≥ 40% (below 960 MHz); ≥ 50% (over 1710
MHz)
Efficiency of the diversity antenna:
≥ half of the efficiency of the primary antenna
in receiving band