Product Info

LTE Module Series
EC21 Hardware Design
EC21_Hardware_Design
5-66
/ 105
Max Input Power: 50 W
Input Impedance: 50Ω
Cable insertion loss: <1dB
(GSM850, GSM900, WCDMA B5/B8,
LTE-FDD 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)
Cable insertion loss <2dB
(LTE-FDD B7, LTE-TDD B40)
1)
It is recommended to use a passive antenna when the module supports B13 or B14, because
harmonics will be generated when using an active antenna, 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.
Figure 38: Dimensions of the U.FL-R-SMT Connector (Unit: mm)
NOTE