Specifications
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.2 RF Antenna Interface
- 2.3 Sample Application
- 3 Operating Characteristics
- 4 Mechanical Dimensions, Mounting and Packaging
- 5 Regulatory and Type Approval Information
- 6 Document Information
- 7 Appendix
Cinterion
®
BGS5 Hardware Interface Overview
2.2 RF Antenna Interface
23
BGS5_HID_v00.341 2013-09-23
Confidential / Preliminary
Page 20 of 41
2.2 RF Antenna Interface
The RF interface has an impedance of 50. BGS5 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 BGS5 module and should be placed in the host application if the antenna
does not have an impedance of 50
.
Regarding the return loss BGS5 provides the following values in the active band:
Table 3: 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