Antenna Interface - Motorola G24 Developer's Manual

Antenna Interface

Antenna Interface
The G24 antenna connector is the RF interface to the GSM network.
The antenna interface is terminated by an MMCX connector type, which is 50
matched at the relevant GSM frequencies.
The antenna or antenna application must be installed properly to achieve best performance.
Table 2-22
48
gives the antenna interface specifications.
Table 2-22: Antenna Interface Specifications
Parameter Conditions
TX
GSM 850
RX
TX
GSM 900
RX
TX
DCS 1800
RX
TX
PCS 1900
RX
Gain
Impedance
VSWR
Module Hardware Description
Ω
Specifications
824 - 849 MHz
869 - 893 MHz
880 - 915 MHz
925 - 960 MHz
1710 - 1785 MHz
1805 - 1880 MHz
1850 - 1910 MHz
1930 - 1990 MHz
0 dBi (unity) gain or greater
50Ω
Typical: 1.5:1
Worst case: 2.5:1
impedance
January 1, 2006