Gemalto Cinterion ELS61T-US User Manual

Cinterion
®
LTE Terminals Hardware Interface Description
3.15 RF Antenna Interface
47
 ELSxT_HID_v04 2018-09-04
Confidential / Preliminary
Page 47 of 102
3.15 RF Antenna Interface
The external RF antennas are connected via the LTE Terminals’s female SMA connectors that
is also the antenna reference point (ARP).
Figure 21: Antenna connectors
The system impedance is 50Ω. In any case, for good RF performance, the return loss of the
customer application’s antenna should be better than 10dB (VSWR < 2). LTE Terminals with-
stand a total mismatch at this connector when transmitting with maximum RF power.
Additional ESD protection to the antenna connector is provided. No DC voltage must be applied
to the antenna circuit to protect it from damage.
Please note that the terminal should be installed and operated with a minimum distance of
20cm between the antenna connected to the terminal and any human bodies. Also, the trans-
mitter must not be co-located or operating in conjunction with any other antenna or transmitter.
The allowed maximum antenna gain (including cable loss) for stand-alone situation is given be-
low in Table 18.
Table 18: Allowed maximum antenna gain (including cable loss)
Terminal 700
MHz
800
MHz
850
MHz
900
MHz
1700
MHz
1800
MHz
1900
MHz
2100
MHz
ELS61T-E 2.15dBi 2.15dBi - 2.15dBi - 2.15dBi - 2.15dBi
ELS61T-E2 2.15dBi 2.15dBi - 2.15dBi - 2.15dBi - 2.15dBi
ELS61T-AUS 2.15dBi - 2.15dBi 2.15dBi - 2.15dBi - 2.15dBi
ELS61T-US 2.15dBi - 2.15dBi - 2.15dBi - 2.15dBi -
ELS31T-J - t.b.d. - - - - - t.b.d.
ELS31T-V 7.4dBi - - - 6.5dBi - - -

Gemalto Cinterion ELS61T-US Specifications

General

Brand	Gemalto
Model	Cinterion ELS61T-US
Category	Touch terminals
Language	English