Quectel EG21-G User Manual

LTE Module Series
EG21-G Hardware Design
EG21-G_Hardware_Design 62 / 100
Table 28: Antenna Requirements
Type
Requirements
GNSS
1)
Frequency range: 1559MHz~1609MHz
Polarization: RHCP or linear
VSWR: <2 (Typ.)
Passive antenna gain: >0dBi
Active antenna noise figure: <1.5dB
Active antenna gain: >-2dBi
Active antenna embedded LNA gain: 20dB (Typ.)
Active antenna total gain: >18dBi (Typ.)
GSM/UMTS/LTE
VSWR: ≤2
Gain (dBi): 1
Max input power (W): 50
Input impedance (Ω): 50
Polarization type: Vertical
Cable insertion loss: <1dB
(GSM850, EGSM900, WCDMA B5/B6/B8/B19,
LTE B5/B8/B12/B13/B18/B19/B20/B26/B28)
Cable insertion loss: <1.5dB
(DCS1800, PCS1900, WCDMA B1/B2/B4,
LTE B1/B2/B3/B4/B25/B39)
Cable insertion loss <2dB
(LTE B7/B38/B40/B41)
1)
It is recommended to use a passive GNSS antenna when LTE B13 or B14 is supported, as the use of
active antenna may generate harmonics which will affect the GNSS performance.
5.3.2. Recommended RF Connector for Antenna Installation
If RF connector is used for antenna connection, it is recommended to use U.FL-R-SMT connector
provided by Hirose.
NOTE

Quectel EG21-G Specifications

General

Brand	Quectel
Model	EG21-G
Category	Wireless modules
Language	English