MEIG SLM156 - Antenna Installation; Antenna Requirements

MeiG_SLM156_Hardware Design Manual
MeiG Smart Technology Co., Ltd
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5.3 Antenna Installation
5.3.1 Antenna Requirements
The requirements of main antenna and GNSS antenna are shown as follows:
Table 22 Antenna Requirements
Type
Requirement
GNSS antenna
RF 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:20 dB (typical value)
Active antenna total gain:> 18 dBi (typical vaule)
LTE/GSM antenna
VSWR:≤2
Gain (dBi): 1
Maximum input power(W): 50
Input impedance(ohm): 50
Polarization type: vertical
Cable insertion loss: < 1dB
(LTE B5/8/18/19/26 GSM850/GSM900)
Cable insertion loss: < 1.5dB
(LTE B1/2/3/4/39 DCS1800/PCS1900)