Huawei EM770 - Antenna Design Requirements; Recommended Index of the Module Antennas

HUAWEI EM770 HSPA PC Embedded Module V100R001
Product Specification
Issue 1
(2008-09-15)
Huawei Confidential: This documents is Huawei Proprietary and Confidential(NDA
Required).It may not be duplicated, neither distributed externally without
prior and written permission of Huawei.
Page
33 of 68
Item 3GPP Protocol Claim Test Value Unit
BAND V (0.1%) <–104.7 -109.5 dBm
Table 4-3 EM770 conducted Tx power
Item 3GPP Protocol Claim Test Value Unit
GSM850 (CS) >31 32.5 dBm
GSM850 (PS) >25 26.5 dBm
GSM900 (CS) >31 32.5 dBm
GSM900 (PS) >25 26.7 dBm
DCS (CS) >28 29.5 dBm
DCS (PS) >24 25.4 dBm
PCS (CS) >28 29.5 dBm
PCS (PS) >24 25.2 dBm
BAND I >21 22.5 dBm
BAND II >21 22 dBm
BAND V >21 22 dBm
% = Bit Error Rate or Block Error Rate
4.3 Antenna Design Requirements
4.3.1 Recommended Index of the Module Antennas
Table 4-4 Recommended index of the main antenna
Working frequency 824–960 MHz and 1710–2170 MHz
Port impedance 50 Ohm
Port standing wave < 2.5
Peak gain > 0 dBi
Antenna efficiency > 60%
Polarization Linear polarization
Pattern Omnidirectional
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