2.4GHz WiFi Module IPEX to SMA Female RF Adapter with SMA Male Antenna 3dbi Antenna Extender for ESP8266 ESP-02/ESP-05/ESP-07

Description

Product Overview

The 2.4GHz WiFi Module Antenna Extender Kit is a complete external antenna solution designed to dramatically improve the wireless range and signal stability of compatible ESP8266 modules. This kit combines a high-quality IPEX (U.FL) to SMA female adapter cable with a 3dBi gain SMA male rubber duck antenna, providing everything you need to add an external antenna to ESP-02, ESP-05, and ESP-07 modules .

Unlike ESP modules that rely solely on an onboard PCB or ceramic antenna, the ESP-02, ESP-05, and ESP-07 feature a dedicated U.FL/IPEX connector designed specifically for external antenna attachment . This kit leverages that built-in capability to replace the internal antenna with a high-performance external antenna, enabling you to:

• Extend Wi-Fi range by 10-20 dB or more compared to the internal antenna

• Penetrate walls and obstacles more effectively

• Mount the antenna remotely from the ESP module for optimal placement

• Use the module inside metal enclosures that would otherwise block the internal antenna

The included 3dBi gain SMA antenna provides excellent omnidirectional coverage, making it ideal for IoT sensors, smart home devices, industrial equipment, and any project where reliable Wi-Fi connectivity is critical. The flexible IPEX to SMA cable allows you to position the antenna away from the module, enabling creative enclosure designs and optimal antenna placement for maximum signal strength.

Whether you are retrofitting an existing ESP8266 project, building a device that will be installed in a challenging RF environment, or simply want the strongest possible Wi-Fi connection, this antenna extender kit delivers reliable, professional-grade performance.

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Key Features

• Complete Antenna Solution: Includes both an IPEX to SMA adapter cable and a 3dBi SMA male antenna, providing everything needed to add external antenna capability to compatible ESP8266 modules .

• High-Gain 3dBi Antenna: The included SMA antenna delivers 3dBi gain with omnidirectional radiation pattern, significantly improving signal strength and range compared to internal PCB or ceramic antennas .

• 50-Ohm Impedance Matching: Both the cable and antenna are designed with 50-ohm impedance, ensuring optimal power transfer and minimal signal loss for maximum performance .

• Low VSWR for High Efficiency: The antenna features a Voltage Standing Wave Ratio (VSWR) of ≤1.8, indicating excellent impedance matching and efficient power radiation .

• Flexible IPEX to SMA Cable: The adapter cable uses high-quality RG coaxial cable (typically RG1.13 or similar) with a U.FL/IPEX connector on one end and an SMA female connector on the other, allowing flexible antenna placement .

• Wide Frequency Compatibility: Optimized for the 2.4 GHz ISM band (2400-2500 MHz), perfectly matched to the operating frequency of ESP8266 Wi-Fi modules .

• Durable Construction: Features a robust antenna housing with hinged or swivel design for flexible mounting and directional adjustment. The cable is shielded for noise immunity and durability .

• Wide Operating Temperature: Rated for operation from -40°C to +85°C, making it suitable for demanding industrial environments and outdoor installations .

• Easy Plug-and-Play Installation: Simple to install—no soldering required. The IPEX connector snaps directly onto the module’s U.FL port, and the antenna screws onto the SMA female connector .

• Compatible Modules: Specifically designed for ESP-02, ESP-05, and ESP-07 modules, which feature a built-in U.FL/IPEX connector for external antenna attachment .

• Versatile Applications: Ideal for IoT sensors, smart home devices, industrial monitoring equipment, outdoor Wi-Fi projects, and any application requiring extended wireless range.

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Technical Specifications

IPEX to SMA Adapter Cable

3dBi SMA Antenna

Compatibility