User's Guide
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
Reproduction forbidden without Telit Communications S.p.A’s. written authorization - All Rights Reserved. Page 34 of 78
7. Antenna
AntennaAntenna
Antenna(s)
(s)(s)
(s)
The antenna connection and board layout design are the most important parts in the
full product design and they strongly reflect on the product’s overall performances.
Read carefully and follow the requirements and the guidelines for a proper design.
7.1. GSM/WCDMA Antenna Requirements
As suggested on the Product Description, the antenna for a Telit UC864-E-AUTO /
AWS-AUTO device must fulfill the following requirements:
Furthermore if the device is developed for the US market, it must comply to the FCC
approval requirements:
This device is to be used only for mobile and fixed application. The antenna(s) used
for this transmitter must be installed to provide a separation distance of at least 20
cm from all persons and must not be co-located or operating in conjunction with any
other antenna or transmitter. End-Users must be provided with transmitter
operation conditions for satisfying RF exposure compliance. OEM integrators must
ensure that the end user has no manual instructions to remove or install the UC864-
AWS-AUTO module
.
Antennas used for this OEM module must not exceed
7
.18 dBi
(GSM 850), 2.78 dBi (PCS 1900) and 1.43 dBi (FDD IV)
gain for mobile and fixed
operating configurations.
GSM /WCDMA ANTENNA REQUIREMENTS
GSM /WCDMA ANTENNA REQUIREMENTSGSM /WCDMA ANTENNA REQUIREMENTS
GSM /WCDMA ANTENNA REQUIREMENTS
Frequency range
Frequency rangeFrequency range
Frequency range
Depending by frequency band(s) provided by the network
operator, the customer shall use the most suitable antenna for
that/those band(s)
Bandwidth
BandwidthBandwidth
Bandwidth
UC864
UC864UC864
UC864-
--
-E
EE
E-
--
-AUTO
AUTOAUTO
AUTO
80 MHz in GSM900, 170 MHz in DCS
250 MHz in WCDMA2100 band
UC864
UC864UC864
UC864-
--
-AWS
AWSAWS
AWS-
--
-AUTO
AUTOAUTO
AUTO
70 MHz in GSM850, 140 MHz in PCS
455 MHz in WCDMA1700(AWS) band
WCDMA AWS band : TX = 45MHz, RX = 45MHz
TX-RX freq. separation = 400MHz
Gain
GainGain
Gain
Gain <
7.18 dBi (GSM 850), 2.78 dBi (PCS 1900) and 1.43 dBi (FDD
IV)
Impedance
ImpedanceImpedance
Impedance
50 Ohm
Input power
Input powerInput power
Input power
> 33dBm(2 W) peak power in GSM
> 24dBm Average power in WCDMA
VSWR absolute max
VSWR absolute maxVSWR absolute max
VSWR absolute max
<= 10:1
VSWR recommended
VSWR recommendedVSWR recommended
VSWR recommended
<= 2:1