Rf Specifications; Rf Antenna Interface; Antenna Interface And Frequency Bands; Reference Design - Quectel SG865W Series Hardware Design

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RF Specifications

This module provides 3 antennas, one of which is Wi-Fi/Bluetooth antenna (Wi-Fi and Bluetooth functions

share the same antenna), one antenna is single Wi-Fi and one antenna is reserved for Bluetooth. The

interface impedance is 50 Ω.

You can connect external antennas such as PCB antenna, sucker antenna and ceramic antenna to the

module via these interfaces to achieve Wi-Fi and Bluetooth functions.

Table 37: Pin Definition of Wi-Fi/Bluetooth Application Interfaces

Pin Name

Pin No.

ANT_BT*

133

ANT_WIFI0

143

ANT_WIFI1

172

A reference circuit design for Wi-Fi/Bluetooth antenna interface is shown as below. To facilitate future

debugging, it is recommended to add a π type matching circuit in antenna circuit design. C1 and C2 are

not mounted and a 0 Ω resistor (R1) is mounted by default.

SG865W_Series_Hardware_Design

I/O

Description

AIO

Bluetooth antenna interface

AIO

Wi-Fi0/Bluetooth antenna interface

AIO

Wi-Fi1 antenna interface

Smart Module Series

Comment

Reserved

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