Product Info
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 3 Operating Characteristics
- 4 Mechanical Dimensions, Mounting and Packaging
- 5 Regulatory and Type Approval Information
- 6 Document Information
- 7 Appendix
Cinterion
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PLS83-X Hardware Interface Overview
2.2 RF Antenna Interface
31
t PLS83-X_HIO_v00.860 2021-02-22
Confidential / Preliminary
Page 22 of 61
2.2 RF Antenna Interface
The PLS83-X GSM/UMTS/LTE antenna interface comprises a GSM/UMTS/LTE main antenna
as well as a UMTS/LTE Rx diversity antenna to improve signal reliability and quality
1
. The RF
interface has an impedance of 50
Ω. PLS83-X is capable of sustaining a total mismatch at the
antenna line without any damage, even when transmitting at maximum RF power.
The external antenna must be matched properly to achieve best performance regarding radi-
ated power, modulation accuracy and harmonic suppression. Antenna matching networks are
not included on the PLS83-X module and should be placed in the host application if the antenna
does not have an impedance of 50
Ω.
Regarding the return loss PLS83-X provides the following values in the active band:
1. By delivery default the UMTS/LTE Rx diversity antenna is configured as available for the module since
its usage is mandatory for LTE. Please refer to [1] for details on how to configure antenna settings.
Table 5: Return loss in the active band
State of module Return loss of module Recommended return loss of application
Receive >
8dB > 12dB
Transmit not applicable >
12dB