Product Info

LTE Standard Module Series
EC25 Series Hardware Design
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5.3. Antenna Installation
5.3.1. Antenna Requirement
The following table shows the requirements on main antenna, Rx-diversity antenna and GNSS antenna.
Table 30: Antenna Requirements
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.
Type
Requirements
GNSS
1)
Frequency range: 1559–1609 MHz
Polarization: RHCP or linear
VSWR: < 2 (Typ.)
Passive antenna gain: > 0 dBi
Active antenna noise figure: < 1.5 dB
Active antenna gain: > 0 dBi
Active antenna embedded LNA gain: < 17 dB
GSM/WCDMA/LTE
VSWR: ≤ 2
Efficiency: > 30%
Max input power: 50 W
Input impedance: 50 Ω
Cable insertion loss: < 1 dB
(GSM850, EGSM900, WCDMA B5/B6/B8/B19,
LTE-FDD B5/B8/B12/B13/B14/B18/B19/B20/B26/B28/B71)
Cable insertion loss: < 1.5 dB
(DCS1800, PCS1900, WCDMA B1/B2/B4,
LTE-FDD B1/B2/B3/B4/B66)
Cable insertion loss: < 2 dB
(LTE-FDD B7, LTE-TDD B38/B40/B41)
NOTE