Product Manual

MeiGProductManualofSLM750Module
SLM750ModuleHardwareDesign Page 62, total 84 pages
Note:
1. You can choose external LDO power supply according to active antenna.
2. You can choose passive antenna design so you do not need to design VDD circuit.
5.3 Antenna Installation
5.3.1 Antenna requirements
The main antenna, diversity antenna and GNSS antenna requirements are as follows:
Table 25: Antenna requirements
Type Requirement
GNSS
Frequency range: 1561-1615MHz
Polarization: RHCP or linear
VSWR: < 2(Typ.)
Passive antenna gain: > 0 dBi
Active antenna noise coefficient: < 1.5 dB
Active antenna gain: < -2 dBi
Active antenna embedded LNA gain: 18.5dB(Typical value)
Active antenna total gain: > 18.5 dB(Typical value)
GSM/WCDMA
/TD-SCDMA/CDMA /TD-LTE/FDD
LTE
VSWR: < 2
Gain(dBi): 1
Maximum input power(W): 50
Input impedance(ohm): 50
Polarization type: vertical
Cable insertion loss: < 1.5dB
(GSM850/900,WCDMAB5/B8, CDMA BC0,
LTE B5/ B8/B12/B13/B17/B20/B26)
Cable insertion loss: < 1.5dB
(GSM1800/1900,WCDMA B1/B2/B4, TD-SCDMA B34/B39,
LTE B1/B2/B3/B4/B25/B39, CMDA BC1)
Cable insertion loss: < 2dB
(LTE B7/B38/B40/B41)
5.3.2 RF output power
RF output power of SLM750 is shown as below: