Conducted Transmit Power; Antenna Design Requirements; Antenna Design Indicators - Huawei MC509 Hardware Manual

HUAWEI MC509 CDMA Mini PCIe Module
Hardware Guide

4.4.2 Conducted Transmit Power

The conducted transmit power is another indicator that measures the performance of
MC509 Mini PCIe module. The conducted transmit power refers to the maximum
power that the module tested at the antenna connector can transmit. According to the
3GPP2 protocol, the required transmit power varies with the power class.
Table 4-4 lists the typical tested values of the MC509 Mini PCIe module.
Table 4-4 MC509 Mini PCIe module conducted Tx power
Band
CDMA800
CDMA1900

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 connector of Mini PCIe Adapter 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,
U.FL-LP-088 made by HRS.
The following antenna efficiency (free space) is recommended for MC509 Mini PCIe
module to ensure high radio performance of the module:



In addition, the efficiency should be tested with the transmission cable.
Issue 03 (2014-12-26)
1 x
EVDO
1 x
EVDO
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
Efficiency of the GPS antenna: ≥ 50%
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Copyright © Huawei Technologies Co., Ltd.
Typical Value (Unit: dBm)
24
24
24
24
RF Specifications
Note (Unit: dB)
-1/+1.5
-1/+1.5
-1/+1.5
-1/+1.5
29