Wavecom WMOi3 User Manual

January 2001/ version 1.4
WMOi3 Integrated Modem
confidential ©
43/61
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without prior written agreement. Ce document est la propriété exlcusive de WAVECOM. Il ne peut
être communiqué ou divulgué à des tiers sans son autorisation préalable.
5.1.1 GSM Antenna
The integrated modem antenna connector is a MMCX connector. The MMCX
connector incorporates a 'Snap On' latching action in order to make the connection
easier with an excellent RF performance. An additional advantage is its small
physical size which is 50% of the standard MCX connector.
This type of connector is suitable for the standard ranges of flexible and semi-rigid
cables. The characteristic impedance of the MMCX coaxial connector is 50 ohm.
The antenna manufacturer must guarantee that the antenna will be working
according to the following radio characteristics:
Table 27 : radio characteristics
EGSM 900 GSM 1800 GSM 1900
Frequency RX
925 to 960 MHz 1805 to 1880 MHz 1930 to 1990 MHz
Frequency TX 880 to 915 MHz 1710 to 1785 MHZ 1850 to 1910 MHz
RF power stand
2W at 12.5 % duty
cycle
1W at 12.5 % duty
cycle
1W at 12.5 % duty
cycle
Impedance
50 Ω
VSWR
<< 2 2
Typical radiated
gain
0 dBi on azimuth plane
The WMOi3 integrated modem requires an MMCX (Miniature Micro Connector)
plug to connect an antenna
Figure Figure 1818: : MMCX connector example (right angle)
An antenna with matting connector can be ordered, for example, from :
IMS Connectors Systems GMBH
Obere Hauptstrasse 30
D-79843 Löffingen
Germany
Tel : +49 76 54 90 10
Fax : +49 76 54 90 11 99
http://www.imscs.com/
or using a small MMCX / SMA adaptor can be ordered, for example, from :
Amphenol Socapex
http://www.amphenol.com/
Order N° : 908-31100

Wavecom WMOi3 Specifications

General

Brand	Wavecom
Model	WMOi3
Category	Modem
Language	English