Antenna Connection; Antenna Connectors; Antenna Interfaces; Pin Definition Of Antenna Interfaces - Quectel RG255C-GL Hardware Design

5

Antenna Connection

5.1. Antenna Connectors

RG255C-GL Mini PCIe is mounted with three antenna connectors for external antenna connection: a
main antenna connector, an Rx-diversity antenna connector, and a GNSS antenna connector. And
Rx-diversity function is enabled by default. The impedance of the antenna connectors is 50 Ω.

5.2. Antenna Interfaces

Appropriate antenna type and design should be used with matched antenna parameters according to
specific application. It is required to perform a comprehensive functional test for the RF design before
mass production of terminal products. The entire content of this chapter is provided for illustration only.
Analysis, evaluation and determination are still necessary when designing target products.

5.2.1. Pin Definition of Antenna Interfaces

Table 17: Pin Definition of Antenna Interfaces
Pin Name I/O
ANT_MAIN AIO
ANT_DRX AI
ANT_GNSS AI
RG255C-GL_Mini_PCIe_Hardware_Design
Description
Antenna 0 interface:
- 5G NR: LB/MHB/5GLM_UHB/5GH TRX
- LTE: LB/MHB/UHB TRX
Antenna 2 interface:
- 5G NR: LB/MHB/5GLM_UHB/5GH DRX
- LTE: LB/MHB/UHB DRX
Antenna 1 interface:
- GNSS: L1/L2/L5
5G Module Series
Comment
LB: 617–960 MHz
MHB: 1695–2690 MHz
5GLM_UHB: 3300–3800 MHz
5GH: 4400–5000 MHz
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